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The quality of fertility data in the web-based Generations and Gender Survey 基于网络的世代与性别调查中生育数据的质量
IF 2.1 3区 社会学 Q2 DEMOGRAPHY Pub Date : 2023-07-06 DOI: 10.4054/demres.2023.49.3
Victor Antunes Leocádio, Anne H. Gauthier, M. Mynarska, Rafael Costa
BACKGROUND The Generations and Gender Survey (GGS) enables investigating family-related events from a life course perspective. After its first round of face-to-face implementation, various factors resulted in the second round being implemented on the web. Despite its advantages, implementing a web-based GGS has its drawbacks ‒ for instance, possible misreporting, and especially underreporting, of life history variables due to the lack of on-site guidance. OBJECTIVE To assess the quality of GGS second-round data collected through the web by verifying the accuracy of fertility histories.
背景世代与性别调查(GGS)能够从生命历程的角度调查家庭相关事件。在第一轮面对面实施之后,各种因素导致第二轮在网络上实施。尽管有其优点,但实现基于web的GGS也有其缺点——例如,由于缺乏现场指导,可能会误报,特别是少报生活史变量。目的通过验证生育史数据的准确性,评价通过网络采集的GGS第二轮数据的质量。
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引用次数: 0
On a closed-form expression and its approximation to Gompertz life disparity 关于Gompertz寿命差距的一个闭式表达式及其逼近
IF 2.1 3区 社会学 Q2 DEMOGRAPHY Pub Date : 2023-07-04 DOI: 10.4054/demres.2023.49.1
Cinzia Di Palo
BACKGROUND In the literature, there exists a closed form solution to the remaining life expectancy at age x when mortality is governed by the Gompertz law. This expression contains a special function that allows us to construct high-accuracy approximations, which are also helpful in assessing the elasticity of life expectancy with respect to the model parameters. However, to my knowledge, a similar formulation for life disparity does not exist, and as a consequence, it does not exist for life table entropy either.
在文献中,当死亡率受Gompertz定律支配时,存在x岁剩余预期寿命的封闭形式解。这个表达式包含一个特殊的函数,它允许我们构建高精度的近似值,这也有助于评估相对于模型参数的预期寿命弹性。然而,据我所知,生命差异的类似公式并不存在,因此,生命表熵也不存在。
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引用次数: 0
Estimation of confidence intervals for decompositions and other complex demographic estimators. 分解和其他复杂人口统计估计的置信区间估计
IF 2.1 3区 社会学 Q2 DEMOGRAPHY Pub Date : 2023-07-01 Epub Date: 2023-07-11 DOI: 10.4054/demres.2023.49.5
Arun S Hendi

Background: While the use of standard errors and confidence intervals is common in regression-based studies in the population sciences, it is far less common in studies using formal demographic measures and methods, including demographic decompositions.

Objective: This article describes and provides explicit instructions for using four different approaches for computing standard errors for complex demographic estimators.

Methods: Standard errors for Arriaga's decomposition of life expectancy differences are computed using the delta method, the Poisson bootstrap, the binomial bootstrap, and the Monte Carlo approaches. The methods are demonstrated using a 50% sample of vital statistics data on age-specific mortality among urban women in the Pacific region of the United States in 1990 and 2019.

Results: All four methods for computing standard errors returned similar estimates, with the delta method, Poisson bootstrap, and Monte Carlo approaches being the most consistent. The Monte Carlo approach is recommended for general use, while the delta method is recommended for specific cases.

Contribution: This study documents multiple ways of estimating statistical uncertainty for complex demographic estimators and describes in detail how to apply these various methods to nearly any rate-based demographic measure. It also provides advice on when the use of standard errors is and is not appropriate in demographic studies. Explicit formulae for computing standard errors for Arriaga's decomposition using the delta method approach are derived.

背景:虽然标准误差和置信区间的使用在基于回归的人口科学研究中很常见,但在使用正式的人口措施和方法,包括人口分解的研究中却很少使用。
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引用次数: 0
The gender gap in schooling outcomes: A cohort study of young men and women in India 教育成果中的性别差异:印度青年男女的队列研究
3区 社会学 Q2 DEMOGRAPHY Pub Date : 2023-06-21 DOI: 10.4054/demres.2023.48.33
John Nunley, Nabamita Dutta
Background: Although literacy rates in India have improved for both men and women, less is known about the evolution of gender disparities across different levels of educational attainment.
背景:尽管印度男性和女性的识字率都有所提高,但人们对不同教育程度的性别差异的演变知之甚少。
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引用次数: 0
How does the demographic transition affect kinship networks? 人口结构的转变如何影响亲属关系网络?
IF 2.1 3区 社会学 Q2 DEMOGRAPHY Pub Date : 2023-06-20 DOI: 10.4054/demres.2023.48.32
Sha Jiang, Wenyun Zuo, Zhen Guo, H. Caswell, S. Tuljapurkar
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引用次数: 0
Ethnic and regional inequalities in Russian military fatalities in Ukraine: Preliminary findings from crowdsourced data 俄罗斯军队在乌克兰死亡人数的种族和地区不平等:来自众包数据的初步调查结果
IF 2.1 3区 社会学 Q2 DEMOGRAPHY Pub Date : 2023-06-08 DOI: 10.4054/demres.2023.48.31
Alexey Bessudnov
OBJECTIVES This paper investigates ethnic and regional disparities in fatality rates in the Russian military in 2022 ‒ 2023 during the war in Ukraine. METHODS The analysis uses a new crowdsourced dataset comprising the names of over 20,000 Russian soldiers killed in Ukraine between February 2022 and April 2023. This dataset was compiled by a team of volunteers who gathered information from social media and other accessible sources. The dataset is incomplete and therefore the findings reported in this paper are tentative. Mortality rates and relative risks are estimated by ethnic group and region, and a linear model is fitted to assess the correlation between the ethnic composition of the population, socioeconomic factors, and regional fatality rates.
目的:本文调查了俄罗斯军队在2022 - 2023年乌克兰战争期间死亡率的种族和地区差异。该分析使用了一个新的众包数据集,其中包括2022年2月至2023年4月期间在乌克兰丧生的2万多名俄罗斯士兵的姓名。这个数据集是由一组志愿者编制的,他们从社交媒体和其他可访问的来源收集信息。数据集是不完整的,因此在本文中报告的发现是尝试性的。按民族和地区估计死亡率和相对风险,并拟合线性模型评估人口民族构成、社会经济因素与地区死亡率之间的相关性。
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引用次数: 1
Subnational variations in births and marriages during the COVID-19 pandemic in South Korea 韩国新冠肺炎大流行期间出生和婚姻的亚国家差异
IF 2.1 3区 社会学 Q2 DEMOGRAPHY Pub Date : 2023-06-07 DOI: 10.4054/demres.2023.48.30
Myunggu Jung, D. S. Lee
BACKGROUND It has been postulated that the COVID-19 pandemic will contribute to fertility decline, especially in low-fertility contexts. Little is known how the consequences of the pandemic differed at the subnational level. OBJECTIVE We investigated whether fertility declined beyond the first wave in early 2020 at both the national and the subnational levels in South Korea. We also examined marital rates, given that delayed marriage is a strong driver of low fertility in many East Asian countries.
据推测,COVID-19大流行将导致生育率下降,特别是在低生育率国家。人们几乎不知道大流行病的后果在国家以下一级有何不同。目的:我们调查了2020年初韩国国家和地方层面的生育率是否在第一波之后下降。考虑到晚婚是许多东亚国家低生育率的主要原因,我们还研究了结婚率。
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引用次数: 0
Introduction to the Special Collection on The new roles of women and men and implications for families and societies 《妇女和男子的新角色及其对家庭和社会的影响特别合集导言》
IF 2.1 3区 社会学 Q2 DEMOGRAPHY Pub Date : 2023-05-23 DOI: 10.4054/demres.2023.48.29
L. Oláh, R. Richter, I. Kotowska
BACKGROUND This is the introduction to a special collection of articles produced within a large-scale collaborative research project, FamiliesAndSocieties, funded by the European Union’s Seventh Framework Programme in 2013 ‒ 2017. OBJECTIVE The special collection addresses (1) the gendered outcomes of employment for fertility, well-being, and partnership stability, and (2) the new role of men in various socioeconomic positions and its implications for family life.
这是由2013 - 2017年欧盟第七框架计划资助的大型合作研究项目“家庭与社会”中产生的一组特别文章的介绍。目的:特别收集地址(1)性别结果就业生育,福祉,和伙伴关系的稳定性,(2)男性在不同的社会经济地位的新角色及其对家庭生活的影响。
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引用次数: 0
Age reporting for the oldest old in the Brazilian COVID-19 vaccination database: What can we learn from it? 巴西COVID-19疫苗接种数据库中最高龄老人的年龄报告:我们可以从中学到什么?
IF 2.1 3区 社会学 Q2 DEMOGRAPHY Pub Date : 2023-05-19 DOI: 10.4054/demres.2023.48.28
C. Turra, F. Fernandes, Júlia Almeida Calazans, M. Nepomuceno
BACKGROUND Age misreporting affects population estimates at older ages. In Brazil, every citizen must be registered and show an identity document to vaccinate against COVID-19. This requirement to present proof of age provides a unique opportunity for measuring the oldest-old population using novel administrative data.OBJECTIVES To offer critically assessed estimates of the Brazilian population aged 80 and older based on data from the vaccination registration system (VRS). To uncover discrepancies between the number of vaccinated oldest-old people and the projections used to estimate target populations for COVID-19 vaccination. METHODS We calculate data quality indicators based on data from the VRS - namely, 100+/80+ and 90+/80+ population proportions, sex ratios, and the Myers blended index - and compare them to those based on data on target populations from Brazilian censuses and demographic projections, and from Sweden - a country with high-quality data. We also estimate vaccination coverage ratios using population projections adjusted to excess deaths as the denominators.RESULTS Requiring documentation reduces age heaping, age exaggeration, and sex ratios marginally. However, it cannot solve the problem of the misreporting of birth dates due to the absence of long-standing birth registration systems in Brazil, particularly in the northern and central regions. In addition, we find a mismatch between the projected populations and numbers of vaccinated people across regions.CONCLUSIONS Despite improvements in data quality in Brazil, we are still not confident about the accuracy of age reporting among the oldest old in the less advantaged Brazilian regions. The postponement of the 2020 census reduced the ability of authorities to define the target populations for vaccinations against COVID-19 and other diseases.CONTRIBUTIONS This is the first study to compare population estimates for the oldest old in administrative data and census data in Brazil. Age misreporting resulted in discrepancies that may have compromised the efficacy of the COVID-19 vaccination campaign.
背景年龄误报影响老年人口估计。在巴西,每位公民都必须登记并出示身份证件才能接种COVID-19疫苗。提供年龄证明的这一要求为使用新的行政数据测量最高龄人口提供了一个独特的机会。目的:根据疫苗接种登记系统(VRS)的数据,对巴西80岁及以上人口进行严格评估。揭示接种疫苗的老年人口数量与用于估计COVID-19疫苗接种目标人群的预测之间的差异。方法我们根据VRS的数据计算数据质量指标,即100+/80+和90+/80+人口比例、性别比例和Myers混合指数,并将其与基于巴西人口普查和人口预测的目标人群数据以及瑞典的数据进行比较。瑞典是一个拥有高质量数据的国家。我们还使用以超额死亡调整后的人口预测作为分母来估计疫苗接种覆盖率。结果:要求提供文件可以略微减少年龄堆积、年龄夸大和性别比。然而,由于巴西,特别是在北部和中部地区缺乏长期存在的出生登记系统,它无法解决谎报出生日期的问题。此外,我们发现预计人口与各地区接种疫苗人数之间存在不匹配。结论:尽管巴西的数据质量有所改善,但我们仍然对巴西贫困地区老年人年龄报告的准确性缺乏信心。2020年人口普查的推迟降低了当局确定COVID-19和其他疾病疫苗接种目标人群的能力。这是第一个比较巴西行政数据和人口普查数据中最高龄人口估计的研究。年龄误报导致的差异可能损害了COVID-19疫苗接种运动的效果。
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引用次数: 0
Improved bounds and high-accuracy estimates for remaining life expectancy via quadrature rule-based methods 通过基于正交规则的方法改进了剩余预期寿命的边界和高精度估计
IF 2.1 3区 社会学 Q2 DEMOGRAPHY Pub Date : 2023-05-17 DOI: 10.4054/demres.2023.48.27
O. Fernandez
BACKGROUND Previous research has derived bounds on the remaining life expectancy function e ( x ) that connect survivorship and remaining life expectancy at two age values and therefore can be used to, among other things, estimate life expectancy at birth when the population’s full mortality trajectory is not known. RESULTS We show that the aforementioned bounds emerge from using particular two-node closed quadrature rules and prove a theorem that establishes conditions for when an n -node closed rule respects those bounds for e ( x ) . This enables the usage of known high-accuracy rules that stay within the bounds and provide new high-accuracy estimates for e ( x ) . We show that among this set of rules are ones that yield exact estimates for e ( x ) . We illustrate our work empirically using life table data from French females since 1816 and discover a new empirical regularity linking life expectancy at birth in the data set to survivorship and remaining life expectancy at age 20.
背景先前的研究已经得出了剩余预期寿命函数e(x)的界限,该函数将两个年龄值下的存活率和剩余预期寿命联系起来,因此,当人口的完整死亡轨迹未知时,可以用来估计出生时的预期寿命。结果我们证明了上述边界来自于使用特定的两节点闭求积规则,并证明了一个定理,该定理为n节点闭规则何时遵守e(x)的这些边界建立了条件。这使得能够使用保持在边界内的已知高精度规则,并提供e(x)的新的高精度估计。我们证明,在这组规则中,有一些规则可以产生e(x)的精确估计。我们使用1816年以来法国女性的寿命表数据实证地说明了我们的工作,并发现了一个新的经验规律,将数据集中出生时的预期寿命与20岁时的生存率和剩余预期寿命联系起来。
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Demographic Research
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