首页 > 最新文献

Z-Medicine eJournal最新文献

英文 中文
Promoting Innovation in Small Markets: Evidence from the Market for Rare and Intractable Diseases 促进小市场创新:来自罕见和难治性疾病市场的证据
Pub Date : 2016-06-20 DOI: 10.2139/ssrn.2805411
Toshiaki Iizuka, Gyo Uchida
In many medical care markets with limited profit potential, firms often have little incentive to innovate. These include the market for rare diseases, "neglected" tropical diseases, and personalized medicine. Governments and not-for-profit organizations promote innovation in such markets but empirical evidence on the policy effect is limited. We study this issue by analyzing the impact of a demand-side policy in Japan, which reduces the cost sharing of patients with some rare and intractable diseases and attempts to establish and promote the treatment of those diseases. Using clinical trials data taken from public registries, we identify the effect of the policy using a difference-in-difference approach. We find that the demand-side policy increased firms' incentive to innovate: firm-sponsored clinical trials increased 181% (0.16 per disease per year) when covered by the policy. This result indicates that the demand-side policy can be an important part of innovation policies in markets with limited profit potential.
在许多利润潜力有限的医疗保健市场中,企业往往缺乏创新的动力。其中包括罕见病、“被忽视的”热带病和个性化医疗市场。政府和非营利组织在这些市场中促进创新,但关于政策效果的经验证据有限。我们通过分析日本的一项需求侧政策的影响来研究这一问题,该政策减少了一些罕见和难治性疾病患者的费用分担,并试图建立和促进这些疾病的治疗。使用从公共注册中心获取的临床试验数据,我们使用差异中的差异方法来确定政策的效果。我们发现,需求侧政策增加了企业的创新激励:在该政策覆盖下,企业赞助的临床试验增加了181%(每年每种疾病0.16例)。这一结果表明,在利润潜力有限的市场中,需求侧政策可以成为创新政策的重要组成部分。
{"title":"Promoting Innovation in Small Markets: Evidence from the Market for Rare and Intractable Diseases","authors":"Toshiaki Iizuka, Gyo Uchida","doi":"10.2139/ssrn.2805411","DOIUrl":"https://doi.org/10.2139/ssrn.2805411","url":null,"abstract":"In many medical care markets with limited profit potential, firms often have little incentive to innovate. These include the market for rare diseases, \"neglected\" tropical diseases, and personalized medicine. Governments and not-for-profit organizations promote innovation in such markets but empirical evidence on the policy effect is limited. We study this issue by analyzing the impact of a demand-side policy in Japan, which reduces the cost sharing of patients with some rare and intractable diseases and attempts to establish and promote the treatment of those diseases. Using clinical trials data taken from public registries, we identify the effect of the policy using a difference-in-difference approach. We find that the demand-side policy increased firms' incentive to innovate: firm-sponsored clinical trials increased 181% (0.16 per disease per year) when covered by the policy. This result indicates that the demand-side policy can be an important part of innovation policies in markets with limited profit potential.","PeriodicalId":307802,"journal":{"name":"Z-Medicine eJournal","volume":"143 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123275862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
Cost-Effectiveness of 18FDG-PET/CT Compared to CT Followed by 18FDG-PET/CT as a Confirmatory Test for a Positive Case in the Evaluation at the End of Treatment in Patients with Hodgkin Lymphoma 18FDG-PET/CT与CT后18FDG-PET/CT作为阳性病例确诊试验在霍奇金淋巴瘤治疗结束评估中的成本-效果比较
Pub Date : 2012-07-27 DOI: 10.2139/SSRN.2194558
M. García Molina, Liliana Chicaíza, Alexander Moreno Calderón, V. Prieto Martínez, Adriana Linares Ballesteros, I. Sarmiento
Objective: To estimate the cost-effectiveness of 18FDG-PET/CT compared to CT followed by 18FDG-PET/CT as a confirmatory test for a positive case at the end of treatment in patients less than 18 years with Hodgkin lymphoma.Materials and Methods: A decision tree in TreeAge® was built to compare the use of 18FDG-PET/CT with CT followed by 18FDG-PET/CT as a confirmatory test for a positive case in detecting residual lesion at end of treatment in pediatric patients with Hodgkin lymphoma. The perspective was that of the health system, including all direct costs. All monetary amounts are expressed in Colombian pesos of 2010. The outcome was measured in life years gained. The data of the operating characteristics of the tests were taken from the literature. We calculated the cost-effectiveness ratio. The threshold was 3 times the per capita GDP per life year gained (the Colombian 2010 per capita GDP was $12,047,418 COP). In the absence of reported data for life expectancy of true positives and false negatives, deterministic and probabilistic sensitivity analyzes were performed, in order to identify the effect of differential life expectancy upon the 18FDG-PET/CT cost effectiveness.Results: Assuming a difference of 13.4 years in the life expectancy of true positives vs false negatives, the cost of an additional life year gained with 18FDG-PET/CT compared to CT followed by 18FDG-PET/CT as a confirmatory test for a positive case in the evaluation at the end of treatment in pediatric patients with Hodgkin lymphoma was 2 789 788 (COP). The results were sensitive to the differential life years gained between true positive and false negative cases, the prevalence of residual lesion, the operating characteristics of the tests and the cost of 18FDG-PET/CT. 18FDG-PET/CT becomes cost effective for life expectancy differences of at least a year.Conclusion: If the differential life-expectancy between true positives and false negatives is at least one year, using 18FDG-PET/CT in the evaluation at the end of the treatment of pediatric patients with LH is a cost-effective strategy for Colombia. The size of the differential may have effects on the cost-effectiveness of 18FDG-PET/CT at other stages of diagnosis or treatment.
目的:评估18FDG-PET/CT作为治疗结束时小于18岁的霍奇金淋巴瘤阳性病例的确诊试验的成本-效果,与CT后再进行18FDG-PET/CT相比。材料和方法:在TreeAge®中建立决策树,比较使用18FDG-PET/CT与CT后使用18FDG-PET/CT作为阳性病例的确认性检查,以检测霍奇金淋巴瘤儿童患者治疗结束时的残留病变。从卫生系统的角度出发,包括所有直接费用。所有货币金额均以2010年哥伦比亚比索表示。结果是用获得的生命年数来衡量的。试验的操作特性数据取自文献。我们计算了成本效益比。这个门槛是每个生命年人均GDP的3倍(哥伦比亚2010年人均GDP为12047418美元)。在缺乏真阳性和假阴性预期寿命的报告数据的情况下,进行了确定性和概率敏感性分析,以确定差异预期寿命对18FDG-PET/CT成本效益的影响。结果:假设真阳性与假阴性的预期寿命差异为13.4年,在霍奇金淋巴瘤儿童患者治疗结束时评估中,使用18FDG-PET/CT与使用CT后的18FDG-PET/CT作为阳性病例的确认性测试相比,获得额外生命年的成本为2789 788 (COP)。结果对真阳性和假阴性病例的差异寿命年、残留病变的患病率、测试的操作特性和18FDG-PET/CT的成本敏感。18FDG-PET/CT在预期寿命相差至少一年的情况下具有成本效益。结论:如果真阳性和假阴性之间的预期寿命差异至少为1年,那么在哥伦比亚儿科LH患者治疗结束时使用18FDG-PET/CT进行评估是一种具有成本效益的策略。差异的大小可能会影响18FDG-PET/CT在其他诊断或治疗阶段的成本效益。
{"title":"Cost-Effectiveness of 18FDG-PET/CT Compared to CT Followed by 18FDG-PET/CT as a Confirmatory Test for a Positive Case in the Evaluation at the End of Treatment in Patients with Hodgkin Lymphoma","authors":"M. García Molina, Liliana Chicaíza, Alexander Moreno Calderón, V. Prieto Martínez, Adriana Linares Ballesteros, I. Sarmiento","doi":"10.2139/SSRN.2194558","DOIUrl":"https://doi.org/10.2139/SSRN.2194558","url":null,"abstract":"Objective: To estimate the cost-effectiveness of 18FDG-PET/CT compared to CT followed by 18FDG-PET/CT as a confirmatory test for a positive case at the end of treatment in patients less than 18 years with Hodgkin lymphoma.Materials and Methods: A decision tree in TreeAge® was built to compare the use of 18FDG-PET/CT with CT followed by 18FDG-PET/CT as a confirmatory test for a positive case in detecting residual lesion at end of treatment in pediatric patients with Hodgkin lymphoma. The perspective was that of the health system, including all direct costs. All monetary amounts are expressed in Colombian pesos of 2010. The outcome was measured in life years gained. The data of the operating characteristics of the tests were taken from the literature. We calculated the cost-effectiveness ratio. The threshold was 3 times the per capita GDP per life year gained (the Colombian 2010 per capita GDP was $12,047,418 COP). In the absence of reported data for life expectancy of true positives and false negatives, deterministic and probabilistic sensitivity analyzes were performed, in order to identify the effect of differential life expectancy upon the 18FDG-PET/CT cost effectiveness.Results: Assuming a difference of 13.4 years in the life expectancy of true positives vs false negatives, the cost of an additional life year gained with 18FDG-PET/CT compared to CT followed by 18FDG-PET/CT as a confirmatory test for a positive case in the evaluation at the end of treatment in pediatric patients with Hodgkin lymphoma was 2 789 788 (COP). The results were sensitive to the differential life years gained between true positive and false negative cases, the prevalence of residual lesion, the operating characteristics of the tests and the cost of 18FDG-PET/CT. 18FDG-PET/CT becomes cost effective for life expectancy differences of at least a year.Conclusion: If the differential life-expectancy between true positives and false negatives is at least one year, using 18FDG-PET/CT in the evaluation at the end of the treatment of pediatric patients with LH is a cost-effective strategy for Colombia. The size of the differential may have effects on the cost-effectiveness of 18FDG-PET/CT at other stages of diagnosis or treatment.","PeriodicalId":307802,"journal":{"name":"Z-Medicine eJournal","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122412781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cost Effectiveness of Diagnostic Strategies for Detecting Congenital Toxoplasmosis in Newborns 新生儿先天性弓形虫病诊断策略的成本效益分析
Pub Date : 2012-07-19 DOI: 10.2139/SSRN.2194571
Liliana Chicaíza, Mario García Molina, S. Oviedo, J. Marín, PÍO IVAN GOMEZ-SANCHEZ
Objective: To estimate the incremental cost-effectiveness ratio of different diagnostic schemes in newborns of mothers with a clinical history of infection with Toxoplasma gondii during the pregnancy, in order to increase the detected cases of congenital toxoplasmosis.Methods: We built a decision tree in TreeAge®, with identified infection cases as an outcome, in which three diagnostic strategies were considered: i) IgG, IgM and IgA together, in the face of negative results in IgA and IgM, Western Blot confirmation, and in the face of negative results in the all three tests but IgG positive, monthly monitoring of the newborn for six months and then every three months until the first year with with IgG; ii) IgM and IgA together, with Western -Blot confirmation for negatives; and iii) Western Blot. The costs were included from the perspective of the Colombian health system, expressed in Colombian pesos of 2010. The information of medicines costs was obtained from 2008 SISMED, and the value of the procedures was calculated by adjusting the values of the Manual of Rates ISS 2001 30% (1), these values were compared with information of the costs supplied by three EPS. The discount rate was 0%. Sensitivity analyzes were performed univariate and probabilistic cost-effectiveness. Univariate and probabilistic sensitivity analyzes were performed for costs and effectiveness.Results: The most effective and expensive strategy is i) (based on IgG, IgM and IgA), followed by ii) (based on IgM and IgA and iii) (Western Blot). The incremental cost effectiveness ratio (ICER) of strategy ii) against iii) is $ 6,189,871. This ICER is sensitive to the cost and the sensitivity of Western Blot, and the prevalence of congenital toxoplasmosis. The ICER of strategy i) against ii) is $ 65,529,979, a result that is sensitive to the prevalence of congenital toxoplasmosis, the sensitivity of the joint test of IgM and IgA and the sensitivity of Western Blot. The probabilistic sensitivity analysis shows that, for a willingness to pay (WTP) per correctly identified case below $6,5 million pesos, the strategy with higher probability of being cost effective is iii); between $6,5 million and $74 million pesos, is strategy ii); for a WTP above $74 million pesos, is strategy i).Conclusions: The cost-effective alternative for Colombia depends on the WTP for additional case of congenital toxoplasmosis detected. Below $6,5 million pesos, strategy iii) is more likely to be cost effective; between $6,5 million and $74 million pesos, strategy ii); and above $74 million pesos, strategy i). The WTP should take into account the cost for the society of neurological lesions and blindness caused by the infection. As the results are sensitive to the prevalence of the infection, it is important to advance in the knowledge of this value for different regions in the country.
目的:评估不同诊断方案对有妊娠期刚地弓形虫感染病史母亲的新生儿的增量成本-效果比,以提高先天性弓形虫病的检出率。方法:我们在TreeAge®软件中构建决策树,以确诊感染病例为结果,考虑三种诊断策略:1)IgG、IgM和IgA同时检测,面对IgA和IgM均阴性,Western Blot确认,面对三项检测均阴性但IgG阳性的情况,每月监测新生儿6个月,然后每3个月监测一次,直到1岁;ii) IgM和IgA结合使用,阴性用Western -Blot确认;iii) Western Blot。这些费用是从哥伦比亚卫生系统的角度计算的,以2010年哥伦比亚比索表示。药品成本信息来源于2008年《药品价格管理与管理手册》,并根据《药品价格管理与管理手册》2001年30%(1)的值进行调整计算,与3家EPS提供的药品成本信息进行比较。贴现率为0%。进行了单变量和概率成本-效果敏感性分析。对成本和效果进行单变量和概率敏感性分析。结果:最有效和最昂贵的策略是i)(基于IgG、IgM和IgA),其次是ii)(基于IgM和IgA)和iii) (Western Blot)。战略二对战略三的增量成本效益比为6 189 871美元。该ICER对成本和Western Blot敏感性敏感,对先天性弓形虫病的患病率敏感。策略i)对策略ii)的ICER为65,529,979美元,该结果对先天性弓形虫病的患病率、IgM和IgA联合测试的敏感性以及Western Blot的敏感性都很敏感。概率敏感性分析表明,对于每个正确识别病例的支付意愿低于650万比索,具有较高成本效益概率的策略是iii);650万至7400万比索(战略二);结论:对哥伦比亚来说,成本效益高的替代方案取决于WTP是否能检测到额外的先天性弓形虫病病例。在650万比索以下,策略iii)更有可能具有成本效益;650万至7400万比索(战略二);以及超过7400万比索(战略i)。WTP应考虑到由感染引起的神经损伤和失明的社会成本。由于结果对感染流行情况很敏感,因此必须提高对该国不同区域这一价值的认识。
{"title":"Cost Effectiveness of Diagnostic Strategies for Detecting Congenital Toxoplasmosis in Newborns","authors":"Liliana Chicaíza, Mario García Molina, S. Oviedo, J. Marín, PÍO IVAN GOMEZ-SANCHEZ","doi":"10.2139/SSRN.2194571","DOIUrl":"https://doi.org/10.2139/SSRN.2194571","url":null,"abstract":"Objective: To estimate the incremental cost-effectiveness ratio of different diagnostic schemes in newborns of mothers with a clinical history of infection with Toxoplasma gondii during the pregnancy, in order to increase the detected cases of congenital toxoplasmosis.Methods: We built a decision tree in TreeAge®, with identified infection cases as an outcome, in which three diagnostic strategies were considered: i) IgG, IgM and IgA together, in the face of negative results in IgA and IgM, Western Blot confirmation, and in the face of negative results in the all three tests but IgG positive, monthly monitoring of the newborn for six months and then every three months until the first year with with IgG; ii) IgM and IgA together, with Western -Blot confirmation for negatives; and iii) Western Blot. The costs were included from the perspective of the Colombian health system, expressed in Colombian pesos of 2010. The information of medicines costs was obtained from 2008 SISMED, and the value of the procedures was calculated by adjusting the values of the Manual of Rates ISS 2001 30% (1), these values were compared with information of the costs supplied by three EPS. The discount rate was 0%. Sensitivity analyzes were performed univariate and probabilistic cost-effectiveness. Univariate and probabilistic sensitivity analyzes were performed for costs and effectiveness.Results: The most effective and expensive strategy is i) (based on IgG, IgM and IgA), followed by ii) (based on IgM and IgA and iii) (Western Blot). The incremental cost effectiveness ratio (ICER) of strategy ii) against iii) is $ 6,189,871. This ICER is sensitive to the cost and the sensitivity of Western Blot, and the prevalence of congenital toxoplasmosis. The ICER of strategy i) against ii) is $ 65,529,979, a result that is sensitive to the prevalence of congenital toxoplasmosis, the sensitivity of the joint test of IgM and IgA and the sensitivity of Western Blot. The probabilistic sensitivity analysis shows that, for a willingness to pay (WTP) per correctly identified case below $6,5 million pesos, the strategy with higher probability of being cost effective is iii); between $6,5 million and $74 million pesos, is strategy ii); for a WTP above $74 million pesos, is strategy i).Conclusions: The cost-effective alternative for Colombia depends on the WTP for additional case of congenital toxoplasmosis detected. Below $6,5 million pesos, strategy iii) is more likely to be cost effective; between $6,5 million and $74 million pesos, strategy ii); and above $74 million pesos, strategy i). The WTP should take into account the cost for the society of neurological lesions and blindness caused by the infection. As the results are sensitive to the prevalence of the infection, it is important to advance in the knowledge of this value for different regions in the country.","PeriodicalId":307802,"journal":{"name":"Z-Medicine eJournal","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133984967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Socio-Economic Causes of Obesity 肥胖的社会经济原因
Pub Date : 2011-09-01 DOI: 10.3386/W17423
C. Baum, Shin-Yi Chou
An increasing number of Americans are obese, with a body mass index of 30 or more. In fact, the latest estimates indicate that about 30% of Americans are currently obese, which is roughly a 100% increase from 25 years ago. It is well accepted that weight gain is caused by caloric imbalance, where more calories are consumed than expended. Nevertheless, it is not clear why the prevalence of obesity has increased so dramatically over the last 30 years. We simultaneously estimate the effects of the various socio-economic factors on weight status, considering in our analysis many of the socio-economic factors that have been identified by other researchers as important influences on caloric imbalance: employment, physical activity at work, food prices, the prevalence of restaurants, cigarette smoking, cigarette prices and taxes, food stamp receipt, and urbanization. We use 1979- and 1997-cohort National Longitudinal Survey of Youth (NLSY) data, which allows us to compare the prevalence of obesity between cohorts surveyed roughly 25 years apart. Using the traditional Blinder-Oaxaca decomposition technique, we find that cigarette smoking has the largest effect: the decline in cigarette smoking explains about 2% of the increase in the weight measures. The other significant factors explain less.
越来越多的美国人肥胖,身体质量指数超过30。事实上,最新的估计表明,目前大约有30%的美国人肥胖,这比25年前大约增加了100%。人们普遍认为,体重增加是由热量不平衡引起的,即摄入的热量多于消耗的热量。然而,在过去的30年里,肥胖的流行率为何急剧上升,目前还不清楚。我们同时估计了各种社会经济因素对体重状况的影响,在我们的分析中考虑了许多其他研究人员已经确定的对热量失衡有重要影响的社会经济因素:就业、工作中的体力活动、食品价格、餐馆的流行、吸烟、香烟价格和税收、食品券收据和城市化。我们使用了1979年和1997年的全国青年纵向调查(NLSY)数据,这使我们能够比较相隔大约25年的队列之间的肥胖患病率。使用传统的Blinder-Oaxaca分解技术,我们发现吸烟的影响最大:吸烟的减少解释了体重增加的约2%。其他重要因素解释得较少。
{"title":"The Socio-Economic Causes of Obesity","authors":"C. Baum, Shin-Yi Chou","doi":"10.3386/W17423","DOIUrl":"https://doi.org/10.3386/W17423","url":null,"abstract":"An increasing number of Americans are obese, with a body mass index of 30 or more. In fact, the latest estimates indicate that about 30% of Americans are currently obese, which is roughly a 100% increase from 25 years ago. It is well accepted that weight gain is caused by caloric imbalance, where more calories are consumed than expended. Nevertheless, it is not clear why the prevalence of obesity has increased so dramatically over the last 30 years. We simultaneously estimate the effects of the various socio-economic factors on weight status, considering in our analysis many of the socio-economic factors that have been identified by other researchers as important influences on caloric imbalance: employment, physical activity at work, food prices, the prevalence of restaurants, cigarette smoking, cigarette prices and taxes, food stamp receipt, and urbanization. We use 1979- and 1997-cohort National Longitudinal Survey of Youth (NLSY) data, which allows us to compare the prevalence of obesity between cohorts surveyed roughly 25 years apart. Using the traditional Blinder-Oaxaca decomposition technique, we find that cigarette smoking has the largest effect: the decline in cigarette smoking explains about 2% of the increase in the weight measures. The other significant factors explain less.","PeriodicalId":307802,"journal":{"name":"Z-Medicine eJournal","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124844658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 23
Youths at Nutritional Risk: Malnourished or Misnourished? 青少年面临营养风险:营养不良还是营养不良?
Pub Date : 2000-05-01 DOI: 10.7208/9780226309972-012
Jay Bhattacharya, Janet Currie
We use data from the third National Health and Nutrition Examination Survey to examine the prevalence and determinants of poor nutritional outcomes among American youths. One strength of our analysis is that we focus on an array of nutritional outcomes, and we find in fact that the determinants of these outcomes vary considerably form outcome to outcome. We interpret our results using a model in which investments in health capital are affected by both resource constraints and a human capital production function that summarizes available nutrition information. We find that although many youths suffer from nutrient deficiencies, these conditions are not generally sensitive to measures of resource constraints, and hence are unlikely to be due solely to a shortage of food. Conversely, we find that our proxies for information matter. Our results suggest that broad-based policies designed to alter the composition of the diet may hold the greatest promise for addressing the nutritional problems of American youths.
我们使用第三次全国健康和营养检查调查的数据来检查美国年轻人中营养不良结果的患病率和决定因素。我们分析的一个优势是我们关注一系列营养结果,我们发现这些结果的决定因素实际上因结果而异。我们使用一个模型来解释我们的结果,在这个模型中,卫生资本投资受到资源限制和人力资本生产函数的影响,人力资本生产函数总结了现有的营养信息。我们发现,尽管许多年轻人患有营养缺乏,但这些情况通常对资源限制措施不敏感,因此不太可能仅仅是由于食物短缺。相反,我们发现我们的信息代理很重要。我们的研究结果表明,旨在改变饮食结构的基础广泛的政策可能对解决美国年轻人的营养问题最有希望。
{"title":"Youths at Nutritional Risk: Malnourished or Misnourished?","authors":"Jay Bhattacharya, Janet Currie","doi":"10.7208/9780226309972-012","DOIUrl":"https://doi.org/10.7208/9780226309972-012","url":null,"abstract":"We use data from the third National Health and Nutrition Examination Survey to examine the prevalence and determinants of poor nutritional outcomes among American youths. One strength of our analysis is that we focus on an array of nutritional outcomes, and we find in fact that the determinants of these outcomes vary considerably form outcome to outcome. We interpret our results using a model in which investments in health capital are affected by both resource constraints and a human capital production function that summarizes available nutrition information. We find that although many youths suffer from nutrient deficiencies, these conditions are not generally sensitive to measures of resource constraints, and hence are unlikely to be due solely to a shortage of food. Conversely, we find that our proxies for information matter. Our results suggest that broad-based policies designed to alter the composition of the diet may hold the greatest promise for addressing the nutritional problems of American youths.","PeriodicalId":307802,"journal":{"name":"Z-Medicine eJournal","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128285762","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 69
Do Doctors Practice Defensive Medicine? 医生会进行防御性医疗吗?
Pub Date : 1996-02-01 DOI: 10.2307/2946682
Daniel P. Kessler, M. Mcclellan
`Defensive medicine' is a potentially serious social problem: if fear of liability drives health care providers to administer treatments that do not have worthwhile medical benefits, then the current liability system may generate inefficiencies many times greater than the costs of compensating malpractice claimants. To obtain direct empirical evidence on this question, we analyze the effects of malpractice liability reforms using data on all elderly Medicare beneficiaries treated for serious heart disease in 1984, 1987, and 1990. We find that malpractice reforms that directly reduce provider liability pressure lead to reductions of 5 to 9 percent in medical expenditures without substantial effects on mortality or medical complications. We conclude that liability reforms can reduce defensive medical practices.
“防御性医疗”是一个潜在的严重社会问题:如果对责任的恐惧驱使医疗保健提供者实施没有价值的医疗效益的治疗,那么目前的责任制度可能产生的效率低下比赔偿医疗事故索赔人的成本高出许多倍。为了获得关于这个问题的直接经验证据,我们使用1984年、1987年和1990年因严重心脏病而接受治疗的所有老年医疗保险受益人的数据,分析了医疗事故责任改革的影响。我们发现,医疗事故改革直接减少了提供者的责任压力,导致医疗支出减少了5%至9%,而对死亡率或医疗并发症没有实质性影响。我们得出结论,责任改革可以减少防御性医疗实践。
{"title":"Do Doctors Practice Defensive Medicine?","authors":"Daniel P. Kessler, M. Mcclellan","doi":"10.2307/2946682","DOIUrl":"https://doi.org/10.2307/2946682","url":null,"abstract":"`Defensive medicine' is a potentially serious social problem: if fear of liability drives health care providers to administer treatments that do not have worthwhile medical benefits, then the current liability system may generate inefficiencies many times greater than the costs of compensating malpractice claimants. To obtain direct empirical evidence on this question, we analyze the effects of malpractice liability reforms using data on all elderly Medicare beneficiaries treated for serious heart disease in 1984, 1987, and 1990. We find that malpractice reforms that directly reduce provider liability pressure lead to reductions of 5 to 9 percent in medical expenditures without substantial effects on mortality or medical complications. We conclude that liability reforms can reduce defensive medical practices.","PeriodicalId":307802,"journal":{"name":"Z-Medicine eJournal","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130168313","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 647
Abiomed and the Abiocor Clinical Trials (a) Abiomed和Abiocor临床试验(a)
Pub Date : 1900-01-01 DOI: 10.2139/ssrn.2973874
E. A. Powell, R. Goldberg
To protect patient confidentiality, Abiomed, makers of the AbioCor artificial heart, adopt a 30-day "quiet period" surrounding implantations, which is construed by mainstream media as a "news blackout." In late 2002, James Quinn, the fifth transplant recipient, dies after 289 days. A month later, in a New York Times article describing Quinn's pain and suffering, Quinn's widow claims that her husband had not been adequately informed of the likely ordeal. This case raises issues about transparency and communication with stakeholders. The A-case may lead some students to focus on the public sensationalism surrounding the Quinn story, but a closer examination of the case reveals that the more urgent issue for AbioMed is getting the stalled clinical trial back on track and raising a slumping stock price. The B-case provides a detailed epilogue, including reactions to the Quinn's informed consent lawsuit and AbioMed's handling of the on-going clinical trial and investor relations. Excerpt UVA-BC-0204 January 25, 2010 ABIOMED AND THE ABIOCOR CLINICAL TRIALS (A) On November 5, 2001, James Quinn became the fifth recipient of the AbioCor implantable replacement heart; he lived for 289 days. About a month after his death, the New York Times ran an article chronicling Quinn's experience. According to Irene Quinn, the patient's wife, the Quinns had not been prepared for the pain and suffering they would endure. Irene faulted the experimental procedure for James' poor quality of life in his remaining days. While the Quinns adored their surgeon, they came to regret their participation in the AbioCor clinical trial, fired a patient advocate who was to assist them with ethical decisions, and hired a malpractice attorney. Long before the clinical trials began, Abiomed, maker of the artificial heart, had carefully considered how to ethically manage their many stakeholders' information needs. Before enrolling a patient in a clinical trial, the company counseled the patient about what to expect, formalizing these conversations with an “informed consent” agreement. Regarding transparency during the clinical trial, the company had to weigh the “good” of protecting patient confidentiality against the “good” of disclosing news and keeping investors and the public informed about experimental results. To avoid the kind of sensational media reporting that had besieged previous artificial heart recipients, the company went to great lengths to manage the expectations of a public eager for a medical breakthrough. Reasoning that putting patients first had to be the highest priority, Abiomed adopted a 30-day “quiet period” before reporting any news related to a new implantation. Although some had questioned Abiomed's communication policies prior to the Times article, the company had managed initially to attract favorable media attention. But circumstances had begun to sour. General economic conditions stagnated following the terrorist attacks of September 11, 2001. Then, when Ab
为了保护患者的隐私,AbioCor人工心脏的制造商Abiomed在植入过程中采取了30天的“安静期”,这被主流媒体解释为“新闻封锁”。2002年底,第五位移植患者詹姆斯·奎因在289天后去世。一个月后,在《纽约时报》的一篇文章中,奎因的遗孀描述了奎因的痛苦和折磨,她声称她的丈夫没有被充分告知可能的折磨。这个案例提出了透明度和与利益相关者沟通的问题。这个案例可能会让一些学生把注意力集中在奎因事件引起的公众轰动效应上,但仔细研究这个案例就会发现,对AbioMed来说,更紧迫的问题是让陷入停滞的临床试验重回正轨,并提振暴跌的股价。b案例提供了详细的结语,包括对Quinn知情同意诉讼的反应,以及AbioMed对正在进行的临床试验和投资者关系的处理。ABIOMED和ABIOCOR临床试验(A) 2001年11月5日,James Quinn成为ABIOCOR植入式替代心脏的第五位接受者;他活了289天。他死后大约一个月,《纽约时报》发表了一篇文章,记录了奎因的经历。据病人的妻子艾琳·奎因(Irene Quinn)说,奎因夫妇没有为他们将要忍受的痛苦和折磨做好准备。艾琳认为实验过程是詹姆斯晚年生活质量不佳的原因。虽然奎因夫妇很喜欢他们的外科医生,但他们开始后悔自己参与了AbioCor的临床试验,解雇了一名帮助他们做出道德决定的患者辩护律师,并聘请了一名医疗事故律师。早在临床试验开始之前,人工心脏制造商Abiomed就仔细考虑了如何从道德上管理其众多利益相关者的信息需求。在招募患者参加临床试验之前,该公司会向患者提供有关预期结果的咨询,并以“知情同意”协议将这些对话正式化。关于临床试验期间的透明度,该公司必须权衡保护患者机密的“好处”,以及披露新闻、让投资者和公众了解实验结果的“好处”。为了避免像之前的人工心脏接受者那样被媒体耸人听闻的报道所困扰,该公司竭尽全力来满足公众对医学突破的期望。Abiomed考虑到患者的优先级必须是最高的,因此在报道任何与新植入有关的新闻之前,采用了30天的“安静期”。尽管在《纽约时报》那篇文章之前,有人质疑Abiomed的传播政策,但该公司最初还是成功地吸引了媒体的关注。但情况已经开始恶化。2001年9月11日恐怖袭击后,总体经济状况停滞不前。然后,Abiomed的研究人员找不到足够健康的志愿者来完成手术,试验就停滞了。因此,投资者的信心下降,整个2002年公司的股价下跌. . . .
{"title":"Abiomed and the Abiocor Clinical Trials (a)","authors":"E. A. Powell, R. Goldberg","doi":"10.2139/ssrn.2973874","DOIUrl":"https://doi.org/10.2139/ssrn.2973874","url":null,"abstract":"To protect patient confidentiality, Abiomed, makers of the AbioCor artificial heart, adopt a 30-day \"quiet period\" surrounding implantations, which is construed by mainstream media as a \"news blackout.\" In late 2002, James Quinn, the fifth transplant recipient, dies after 289 days. A month later, in a New York Times article describing Quinn's pain and suffering, Quinn's widow claims that her husband had not been adequately informed of the likely ordeal. This case raises issues about transparency and communication with stakeholders. The A-case may lead some students to focus on the public sensationalism surrounding the Quinn story, but a closer examination of the case reveals that the more urgent issue for AbioMed is getting the stalled clinical trial back on track and raising a slumping stock price. The B-case provides a detailed epilogue, including reactions to the Quinn's informed consent lawsuit and AbioMed's handling of the on-going clinical trial and investor relations. Excerpt UVA-BC-0204 January 25, 2010 ABIOMED AND THE ABIOCOR CLINICAL TRIALS (A) On November 5, 2001, James Quinn became the fifth recipient of the AbioCor implantable replacement heart; he lived for 289 days. About a month after his death, the New York Times ran an article chronicling Quinn's experience. According to Irene Quinn, the patient's wife, the Quinns had not been prepared for the pain and suffering they would endure. Irene faulted the experimental procedure for James' poor quality of life in his remaining days. While the Quinns adored their surgeon, they came to regret their participation in the AbioCor clinical trial, fired a patient advocate who was to assist them with ethical decisions, and hired a malpractice attorney. Long before the clinical trials began, Abiomed, maker of the artificial heart, had carefully considered how to ethically manage their many stakeholders' information needs. Before enrolling a patient in a clinical trial, the company counseled the patient about what to expect, formalizing these conversations with an “informed consent” agreement. Regarding transparency during the clinical trial, the company had to weigh the “good” of protecting patient confidentiality against the “good” of disclosing news and keeping investors and the public informed about experimental results. To avoid the kind of sensational media reporting that had besieged previous artificial heart recipients, the company went to great lengths to manage the expectations of a public eager for a medical breakthrough. Reasoning that putting patients first had to be the highest priority, Abiomed adopted a 30-day “quiet period” before reporting any news related to a new implantation. Although some had questioned Abiomed's communication policies prior to the Times article, the company had managed initially to attract favorable media attention. But circumstances had begun to sour. General economic conditions stagnated following the terrorist attacks of September 11, 2001. Then, when Ab","PeriodicalId":307802,"journal":{"name":"Z-Medicine eJournal","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116487163","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Medical Cost Containment: A Microeconomic Approach 医疗成本控制:微观经济学方法
Pub Date : 1900-01-01 DOI: 10.2139/ssrn.3191337
Marc D. Joffe
The high and rising cost of US medical care is partially attributable to legally enforced rigidities in the health care system. By relaxing restrictions, the government can unlock competitive forces that drive prices down and empower individuals to avoid unnecessary, expensive medical services. A more open health care market would give providers incentives to innovate in ways that not only improve the quality of care but also reduce the cost of offering it. In this report, I suggest that significant cost savings can be achieved by encouraging medical tourism, empowering "mid-level" providers, using administrative law procedures as an alternative to malpractice litigation, reducing the scope of drug patents, and switching prescription medicines to over-the-counter dispensing.
美国医疗保健费用的高企和不断上升的部分原因是医疗保健系统中法律强制执行的僵化。通过放宽限制,政府可以释放推动价格下降的竞争力量,并使个人能够避免不必要的、昂贵的医疗服务。一个更加开放的医疗保健市场将激励提供者进行创新,不仅提高医疗质量,而且降低提供医疗服务的成本。在本报告中,我建议,通过鼓励医疗旅游、赋予"中级"提供者权力、利用行政法程序替代医疗事故诉讼、缩小药品专利的范围以及将处方药改为非处方分发,可以显著节省成本。
{"title":"Medical Cost Containment: A Microeconomic Approach","authors":"Marc D. Joffe","doi":"10.2139/ssrn.3191337","DOIUrl":"https://doi.org/10.2139/ssrn.3191337","url":null,"abstract":"The high and rising cost of US medical care is partially attributable to legally enforced rigidities in the health care system. By relaxing restrictions, the government can unlock competitive forces that drive prices down and empower individuals to avoid unnecessary, expensive medical services. A more open health care market would give providers incentives to innovate in ways that not only improve the quality of care but also reduce the cost of offering it. In this report, I suggest that significant cost savings can be achieved by encouraging medical tourism, empowering \"mid-level\" providers, using administrative law procedures as an alternative to malpractice litigation, reducing the scope of drug patents, and switching prescription medicines to over-the-counter dispensing.","PeriodicalId":307802,"journal":{"name":"Z-Medicine eJournal","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130019310","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
期刊
Z-Medicine eJournal
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1