清高宗孝贤皇后死因考辨

清乾隆皇帝之元后富察氏孝贤皇后,出身名门,一生恭俭贤淑,颇受好评;但关于孝贤皇后之死,正史、野史众说纷纭。经系统地研究和考辨,笔者推断出孝贤皇后崩逝之根本原因在于其长期身心受损,旅途劳累、微感寒疾只不过是其死亡之导火索,而乾隆帝"舟中夜宴"或许也进一步加快了其死亡步伐。     

The Increasingly Mixed Proportional Hazard Model: An Application to Socioeconomic Status,Health Shocks,and Mortality

We introduce a duration model that allows for unobserved cumulative individual-specific shocks, which are likely to be important in explaining variations in duration outcomes, such as length of life and time spent unemployed. The model is also a useful tool in situations where researchers observe a great deal of information about individuals when first interviewed in surveys but little thereafter. We call this model the “increasingly mixed proportional hazard” (IMPH) model. We compare and contrast this model with the mixed proportional hazard (MPH) model, which continues to be the workhorse of applied single-spell duration analysis in economics and the other social sciences. We apply the IMPH model to study the relationships among socioeconomic status, health shocks, and mortality, using 19 waves of data drawn from the German Socio-Economic Panel (SOEP). The IMPH model is found to fit the data statistically better than the MPH model, and unobserved health shocks and socioeconomic status are shown to play powerful roles in predicting longevity.     

女性社会地位与总和生育率

在审视现有衡量女性社会地位的指标体系并用主成分分析法构建出新的指标体系的基础上,依据联合国人类发展报告中提供的数据,对全世界36个具有代表性的国家的女性社会地位与总和生育率的关系进行了研究分析,对最不发达国家进行了补充性分析。研究表明:一个国家女性的社会地位越高,总和生育率越低;一个国家的妇幼医疗保障水平对该国生育率的变动有着特殊重要的意义。     

Trends in inequality in infant mortality in the north of England, 1921–1973, and their association with urban and social structure

Summary.  The paper analyses a time series of infant mortality rates in the north of England from 1921 to the early 1970s at a spatial scale that is more disaggregated than in previous studies of infant mortality trends in this period. The paper describes regression methods to obtain mortality gradients over socioeconomic indicators from the censuses of 1931, 1951, 1961 and 1971 and to assess whether there is any evidence for widening spatial inequalities in infant mortality outcomes against a background of an overall reduction in the infant mortality rate. Changes in the degree of inequality are also formally assessed by inequality measures such as the Gini and Theil indices, for which sampling densities are obtained and significant changes assessed. The analysis concerns a relatively infrequent outcome (especially towards the end of the period that is considered) and a high proportion of districts with small populations, so necessitating the use of appropriate methods for deriving indices of inequality and for regression modelling.     

The estimation of adopted mortality and morbidity rates using model and the phase type law: the Turkish case

Abstract

This paper aims to estimate mortality rate, morbidity-mortality rates of a chronic disease utilizing phase type law in the frame of two and three state processes. The application on commonly used mortality tables in Turkey are adopted to process to estimate the future mortalities with respect to phase type distribution for the purpose of justifying. Using one absorbing state, two and three state Models calculate the time until absorbing of the death and death by phase type distribution for each gender. Consequently, the 3-state probabilities in estimating the mortality-morbidity rates of IHD for Turkish population yield a significant information on the health management and pricing health insurance products.     

Mortality among a national population sentenced to compulsory care for substance use disorders in Sweden: Descriptive study

Sweden's compulsory addiction system treats individuals with severe alcohol and narcotics use disorders. Merging data from three national level register databases of those sentenced to compulsory care from 2001 to 2009 (n = 4515), the aims of this study were to: (1) compute mortality rates to compare to the general Swedish population; (2) identify leading cause of mortality by alcohol or narcotics use; and (3) identify individual level characteristics associated with mortality among alcohol and narcotics users. In this population, 24% were deceased by 2011. The most common cause of death for alcohol users was physical ailments linked to alcohol use, while narcotics users commonly died of drug poisoning or suicide. Average age of death differed significantly between alcohol users (55.0) and narcotics users (32.5). Multivariable logistic regression analysis identified the same three factors predicting mortality: older age (alcohol users OR = 1.28, narcotic users OR = 1.16), gender [males were nearly 3 times more likely to die among narcotics users (p < .000) and 1.6 times more likely to die among alcohol users (p < .01)] and reporting serious health problems (for alcohol users p < .000, for narcotics users p < .05). Enhanced program and government efforts are needed to implement overdose-prevention efforts and different treatment modalities for both narcotic and alcohol users.     

全年龄人口死亡模型构建及应用——以江苏省为例

人口死亡特征不仅具有时间和区域属性,同时也具有年龄属性,多重属性决定了人口死亡规律的复杂性。在研究儿童少年期、青壮年期以及中老年期人口死亡模型的基础上,以江苏省为例构建了基于局部人口死亡模型的全年龄人口死亡模型,并对江苏省人口死亡过程进行了研究。研究表明：基于局部人口死亡模型的全年龄人口死亡模型能够细致刻画人口死亡过程依年龄变化的特点;江苏省儿童少年期、青壮年期和中老年期人口死亡模式可以分别采用威布尔对数线性模型、三次多项式模型和罗吉斯蒂模型来描述;近年来江苏省人口死亡水平不断下降,但各年龄层死亡水平下降特点不尽相同。     

中国知识分子:短命还是长寿?--中国知识分子健康研究报告之一

本文考察了中国知识分子的平均预期寿命,挑战了广为流行的观点.本文首先解释"死亡人口平均年龄"与"平均预期寿命"指标的概念和差异;然后使用2004年在中科院18个研究所以及北京大学、清华大学共20个单位调查的死亡人口资料,检验"知识分子死亡平均年龄下降趋势"的可信性;并利用全国第四次和第五次人口普查的权威数据,计算受过本科以上教育人群的生命表和"平均预期寿命",得出中国知识分子预期寿命大大高于普通人群的结论,推翻了"中国知识分子预期寿命比全国平均寿命低17岁"这个流传广泛且被反复引用的错误结论.     

分年龄组死亡率变动对人均期望寿命影响的实验研究 ——以甘肃省为例

人均期望寿命是分析、评价人口健康状况,衡量社会经济发展及医疗卫生服务水平的重要指标。从2014年开始人均期望寿命的提高被纳入卫生计生系统考核内容,受到各级政府的重视。为了有效地甄别和评价政策实施对人均期望寿命提高的贡献程度,需要精确地估计和判断各年龄组死亡率变动对人均期望寿命提高的影响。在实践中,针对某一年龄组或某一特定人群死亡率的变动以及相关政策实施对人均期望寿命的影响鲜有较为精确的定量解答或快速有效的估算办法。本研究通过数据实验方法和计算机辅助计算建立一套可以较为精确地估算某一区域内某一年龄组死亡率变动对人均期望寿命影响的计算方法和结果集,利用这种方法可以开展不同类型、不同区域内人口死亡率变动对人均期望寿命影响的快速估算。利用估算结果可以对区域内政策实施效果进行较为科学的评估或评价。文章以中国2010年人口普查数据中甘肃省各年龄组分性别死亡率数据为基础对上述研究进行实证分析和验证。     

Rural/urban differentials in demographic processes: The Central Asian states

While the populations of the Central Asian successor states are extremely heterogeneous on many indicators, the issue of rural or urban residence is consistently important in terms of differentials in population growth, socio-economic status and public health. In this paper I focus on rural population trends in Kazakhstan, Kyrghyzstan, Turkmenistan, Uzbekistan and Tajikistan. I explore the relatively disadvantaged position of rural inhabitants as well as regional variations within the rural population. The differentials in fertility and mortality rates and the large projected population increases indicate that future policy interventions and data collection efforts should incorporate a specific focus on rural areas.