Pub Date : 2020-07-01DOI: 10.1134/S0032946020030047
S. Wang, W. Zhang
{"title":"Research on Fractional Critical Covered Graphs","authors":"S. Wang, W. Zhang","doi":"10.1134/S0032946020030047","DOIUrl":"https://doi.org/10.1134/S0032946020030047","url":null,"abstract":"","PeriodicalId":54581,"journal":{"name":"Problems of Information Transmission","volume":"56 1","pages":"270 - 277"},"PeriodicalIF":1.2,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1134/S0032946020030047","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49439961","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-05-07DOI: 10.1134/S0032946020040018
Mladen Kovačević
{"title":"Signaling to Relativistic Observers: An Einstein–Shannon–Riemann Encounter","authors":"Mladen Kovačević","doi":"10.1134/S0032946020040018","DOIUrl":"https://doi.org/10.1134/S0032946020040018","url":null,"abstract":"","PeriodicalId":54581,"journal":{"name":"Problems of Information Transmission","volume":"56 1","pages":"303 - 308"},"PeriodicalIF":1.2,"publicationDate":"2020-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43876721","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-04-01DOI: 10.1134/S0032946020020015
A. Makur, L. Zheng
{"title":"Comparison of Contraction Coefficients for f-Divergences","authors":"A. Makur, L. Zheng","doi":"10.1134/S0032946020020015","DOIUrl":"https://doi.org/10.1134/S0032946020020015","url":null,"abstract":"","PeriodicalId":54581,"journal":{"name":"Problems of Information Transmission","volume":"56 1","pages":"103 - 156"},"PeriodicalIF":1.2,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1134/S0032946020020015","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42922776","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-04-01DOI: 10.1134/S0032946020020039
A. Kharin, K. Zavertkin, A. Ovinnikov
{"title":"Detecting Cycles of Length 8 in the Tanner Graph of a QC-LDPC Code Based on Protograph Analysis","authors":"A. Kharin, K. Zavertkin, A. Ovinnikov","doi":"10.1134/S0032946020020039","DOIUrl":"https://doi.org/10.1134/S0032946020020039","url":null,"abstract":"","PeriodicalId":54581,"journal":{"name":"Problems of Information Transmission","volume":"56 1","pages":"173 - 184"},"PeriodicalIF":1.2,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1134/S0032946020020039","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44186974","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-04-01DOI: 10.1134/S0032946020020027
M. Burnashev
{"title":"New Upper Bounds in the Hypothesis Testing Problem with Information Constraints","authors":"M. Burnashev","doi":"10.1134/S0032946020020027","DOIUrl":"https://doi.org/10.1134/S0032946020020027","url":null,"abstract":"","PeriodicalId":54581,"journal":{"name":"Problems of Information Transmission","volume":"56 1","pages":"157 - 172"},"PeriodicalIF":1.2,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1134/S0032946020020027","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49085158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-04-01DOI: 10.1134/S0032946020040031
A. Kharin, K. Zavertkin, A. Ovinnikov
{"title":"Detecting Cycles of Length 10 in the Tanner Graph of a QC-LDPC Code Based on Protograph Analysis","authors":"A. Kharin, K. Zavertkin, A. Ovinnikov","doi":"10.1134/S0032946020040031","DOIUrl":"https://doi.org/10.1134/S0032946020040031","url":null,"abstract":"","PeriodicalId":54581,"journal":{"name":"Problems of Information Transmission","volume":"56 1","pages":"317 - 331"},"PeriodicalIF":1.2,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49004370","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-04-01DOI: 10.1134/S0032946020020040
G. Golubev
{"title":"On Adaptive Estimation of Linear Functionals from Observations against White Noise","authors":"G. Golubev","doi":"10.1134/S0032946020020040","DOIUrl":"https://doi.org/10.1134/S0032946020020040","url":null,"abstract":"","PeriodicalId":54581,"journal":{"name":"Problems of Information Transmission","volume":"56 1","pages":"185 - 200"},"PeriodicalIF":1.2,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1134/S0032946020020040","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64160001","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-03-01DOI: 10.1097/CORR.0000000000000892
Elbert J Mets, Michael R Mercier, Ari S Hilibrand, Michelle C Scott, Arya G Varthi, Jonathan N Grauer
<p><strong>Background: </strong>Since 2013, the Centers for Medicare & Medicaid Services has tied a portion of hospitals' annual reimbursement to patients' responses to the Hospital Consumer Assessment and Healthcare Providers and Systems (HCAHPS) survey, which is given to a random sample of inpatients after discharge. The most general question in the HCAHPS survey asks patients to rate their overall hospital experience on a scale of 0 to 10, with a score of 9 or 10 considered high, or "top-box." Previous work has suggested that HCAHPS responses, which are meant to be an objective measure of the quality of care delivered, may vary based on numerous patient factors. However, few studies to date have identified factors associated with HCAHPS scores among patients undergoing spine surgery, and those that have are largely restricted to surgery of the lumbar spine. Consequently, patient and perioperative factors associated with HCAHPS scores among patients receiving surgery across the spine have not been well elucidated.</p><p><strong>Questions/purposes: </strong>Among patients undergoing spine surgery, we asked if a "top-box" rating on the overall hospital experience question on the HCAHPS survey was associated with (1) patient-related factors present before admission; (2) surgical variables related to the procedure; and/or (3) 30-day perioperative outcomes.</p><p><strong>Methods: </strong>Among 5517 patients undergoing spine surgery at a single academic institution from 2013 to 2017 and who were sent an HCAHPS survey, 27% (1480) returned the survey and answered the question related to overall hospital experience. A retrospective, comparative analysis was performed comparing patients who rated their overall hospital experience as "top-box" with those who did not. Patient demographics, comorbidities, surgical variables, and perioperative outcomes were compared between the groups. A multivariate logistic regression analysis was performed to determine patient demographics, comorbidities, and surgical variables associated with a top-box hospital rating. Additional multivariate logistic regression analyses controlling for these variables were performed to determine the association of any adverse event, major adverse events (such as myocardial infarction, pulmonary embolism), and minor adverse events (such as urinary tract infection, pneumonia); reoperation; readmission; and prolonged hospitalization with a top-box hospital rating.</p><p><strong>Results: </strong>After controlling for potential confounding variables (including patient demographics), comorbidities that differed in incidence between patients who rated the hospital top-box and those who did not, and variables related to surgery, the patient factors associated with a top-box hospital rating were older age (compared with age ≤ 40 years; odds ratio 2.2, [95% confidence interval 1.4 to 3.4]; p = 0.001 for 41 to 60 years; OR 2.5 [95% CI 1.6 to 3.9]; p < 0.001 for 61 to 80 years; OR 2.1 [95% CI 1.1
背景：自 2013 年起，美国联邦医疗保险与医疗补助服务中心（Centers for Medicare & Medicaid Services）将医院年度报销额度的一部分与患者对 "医院消费者评估及医疗服务提供者和系统"（HCAHPS）调查的答复挂钩。HCAHPS 调查中最普通的问题是让患者用 0 到 10 分来评价他们在医院的总体体验，9 分或 10 分被认为是高分，或者说是 "最高分"。以往的研究表明，HCAHPS 的回答本意是对医疗质量的客观衡量，但可能会因众多患者因素而有所不同。然而，迄今为止，很少有研究发现脊柱手术患者的 HCAHPS 评分与哪些因素有关，而且这些研究主要局限于腰椎手术。因此，在接受脊柱手术的患者中，与 HCAHPS 评分相关的患者和围手术期因素尚未得到很好的阐明：在接受脊柱手术的患者中，我们询问 HCAHPS 调查中医院总体体验问题的 "最高箱 "评分是否与以下因素相关：（1）入院前患者相关因素；（2）与手术相关的手术变量；和/或（3）30 天围手术期结果：2013年至2017年期间，在一家学术机构接受脊柱手术并收到HCAHPS调查的5517名患者中，有27%（1480人）返回了调查并回答了与医院总体体验相关的问题。我们进行了一项回顾性比较分析，将将医院总体体验评为 "顶级 "的患者与未评为 "顶级 "的患者进行了比较。比较了两组患者的人口统计学特征、合并症、手术变量和围手术期结果。进行了多变量逻辑回归分析，以确定与顶级医院评级相关的患者人口统计学特征、合并症和手术变量。在控制这些变量的基础上，还进行了其他多变量逻辑回归分析，以确定任何不良事件、主要不良事件（如心肌梗死、肺栓塞）和轻微不良事件（如尿路感染、肺炎）、再次手术、再次入院和延长住院时间与顶级医院评级的相关性：在控制了潜在的混杂变量（包括患者的人口统计学特征）、被医院评为最高级别和未被评为最高级别的患者发病率不同的合并症以及与手术相关的变量后，与医院评为最高级别相关的患者因素是年龄较大（与年龄小于 40 岁相比；几率比 2.2，[95% 置信区间 1.4 至 3.4]；41 至 60 岁，P = 0.001；61 至 80 岁，OR 2.5 [95% CI 1.6 至 3.9]；61 至 80 岁，P < 0.001；大于 80 岁，OR 2.1 [95% CI 1.1 至 4.1]；P = 0.036），以及男性（OR 1.3 [95% CI 1.0 至 1.7]；P = 0.028）。此外，非顶级医院评级与美国麻醉医师协会二级（OR 0.5 [95% CI 0.3 至 0.9]；p = 0.024）、三级（OR 0.5 [95% CI 0.3 至 0.9]；p = 0.020）或四级（OR 0.2 [95% CI 0.1 至 0.5]；p = 0.003）相关。唯一与顶级医院评级呈正相关的手术因素是颈椎手术（与腰椎手术相比；OR 1.4 [95% CI 1.1 to 1.9]；p = 0.016），而非选择性手术（OR 0.5 [95% CI 0.3 to 0.8]；p = 0.004）与非顶级医院评级相关。在控制同一组变量的情况下，非最高评分与任何不良事件的发生（OR 0.5 [95% CI 0.3 to 0.7]；p < 0.001）、再入院（OR 0.5 [95% CI 0.3 to 0.9]；p = 0.023）和住院时间延长（OR 0.6 [95% CI 0.4 to 0.8]；p = 0.004）相关：结论：确定手术前存在的患者因素与 HCAHPS 评分独立相关，凸显了该调查在准确衡量脊柱手术患者护理质量方面的作用有限。脊柱手术人群中的 HCAHPS 反应应谨慎解释，并应考虑此处确定的因素。鉴于文献中关于不良事件对HCAHPS评分影响的研究结果不尽相同，未来的工作应旨在进一步描述这种关系：证据级别：III级，治疗性研究。
{"title":"Patient-related Factors and Perioperative Outcomes Are Associated with Self-Reported Hospital Rating after Spine Surgery.","authors":"Elbert J Mets, Michael R Mercier, Ari S Hilibrand, Michelle C Scott, Arya G Varthi, Jonathan N Grauer","doi":"10.1097/CORR.0000000000000892","DOIUrl":"10.1097/CORR.0000000000000892","url":null,"abstract":"<p><strong>Background: </strong>Since 2013, the Centers for Medicare & Medicaid Services has tied a portion of hospitals' annual reimbursement to patients' responses to the Hospital Consumer Assessment and Healthcare Providers and Systems (HCAHPS) survey, which is given to a random sample of inpatients after discharge. The most general question in the HCAHPS survey asks patients to rate their overall hospital experience on a scale of 0 to 10, with a score of 9 or 10 considered high, or \"top-box.\" Previous work has suggested that HCAHPS responses, which are meant to be an objective measure of the quality of care delivered, may vary based on numerous patient factors. However, few studies to date have identified factors associated with HCAHPS scores among patients undergoing spine surgery, and those that have are largely restricted to surgery of the lumbar spine. Consequently, patient and perioperative factors associated with HCAHPS scores among patients receiving surgery across the spine have not been well elucidated.</p><p><strong>Questions/purposes: </strong>Among patients undergoing spine surgery, we asked if a \"top-box\" rating on the overall hospital experience question on the HCAHPS survey was associated with (1) patient-related factors present before admission; (2) surgical variables related to the procedure; and/or (3) 30-day perioperative outcomes.</p><p><strong>Methods: </strong>Among 5517 patients undergoing spine surgery at a single academic institution from 2013 to 2017 and who were sent an HCAHPS survey, 27% (1480) returned the survey and answered the question related to overall hospital experience. A retrospective, comparative analysis was performed comparing patients who rated their overall hospital experience as \"top-box\" with those who did not. Patient demographics, comorbidities, surgical variables, and perioperative outcomes were compared between the groups. A multivariate logistic regression analysis was performed to determine patient demographics, comorbidities, and surgical variables associated with a top-box hospital rating. Additional multivariate logistic regression analyses controlling for these variables were performed to determine the association of any adverse event, major adverse events (such as myocardial infarction, pulmonary embolism), and minor adverse events (such as urinary tract infection, pneumonia); reoperation; readmission; and prolonged hospitalization with a top-box hospital rating.</p><p><strong>Results: </strong>After controlling for potential confounding variables (including patient demographics), comorbidities that differed in incidence between patients who rated the hospital top-box and those who did not, and variables related to surgery, the patient factors associated with a top-box hospital rating were older age (compared with age ≤ 40 years; odds ratio 2.2, [95% confidence interval 1.4 to 3.4]; p = 0.001 for 41 to 60 years; OR 2.5 [95% CI 1.6 to 3.9]; p < 0.001 for 61 to 80 years; OR 2.1 [95% CI 1.1","PeriodicalId":54581,"journal":{"name":"Problems of Information Transmission","volume":"54 1","pages":"643-652"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7145058/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73031877","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-01-01DOI: 10.1134/S0032946020010068
F. Klebaner, A. Logachov, A. Mogulskii
{"title":"Extended Large Deviation Principle for Trajectories of Processes with Independent and Stationary Increments on the Half-line","authors":"F. Klebaner, A. Logachov, A. Mogulskii","doi":"10.1134/S0032946020010068","DOIUrl":"https://doi.org/10.1134/S0032946020010068","url":null,"abstract":"","PeriodicalId":54581,"journal":{"name":"Problems of Information Transmission","volume":"56 1","pages":"56 - 72"},"PeriodicalIF":1.2,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1134/S0032946020010068","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48424188","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-01-01DOI: 10.1134/S0032946020010056
N. Manev
{"title":"On Distance Distributions of Orthogonal Arrays","authors":"N. Manev","doi":"10.1134/S0032946020010056","DOIUrl":"https://doi.org/10.1134/S0032946020010056","url":null,"abstract":"","PeriodicalId":54581,"journal":{"name":"Problems of Information Transmission","volume":"56 1","pages":"45 - 55"},"PeriodicalIF":1.2,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1134/S0032946020010056","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46300471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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