The Effect of Prenatal Natural Disaster Exposure on School Outcomes

This study looks at the impact of exposure to natural disasters during pregnancy on the educational outcomes of North Carolina children at the third grade level. A broad literature relates negative birth outcomes to poor educational performance, and a number of recent studies have examined the effect of prenatal exposure to natural disasters on birth outcomes. This study takes the next step by considering how prenatal exposure affects later outcomes. Combining North Carolina administrative data on births and school performance with disaster declarations from the U.S. Federal Emergency Management Agency (FEMA) allows for the identification of children who were exposed to disasters during prenatal development. These children are compared with other children born in the same county who were not exposed to disasters while in utero. Regression results suggest that children exposed to hurricanes prenatally have lower scores on third grade standardized tests in math and reading. Those exposed to flooding or tornadoes also have somewhat lower math scores. Additionally, results suggest that these negative effects are more concentrated among children in disadvantaged subgroups, especially children born to black mothers. However, no evidence exists that these effects are mediated by common measures of birth outcomes, including birth weight and gestational age.     

The Mexican Drug War and Early-Life Health: The Impact of Violent Crime on Birth Outcomes

This study examines the relationship between exposure to violent crime in utero and birth weight using longitudinal data from a household survey conducted in Mexico. Controlling for selective migration and fertility, the results suggest that early gestational exposure to the recent escalation of the Mexican Drug War is associated with a substantial decrease in birth weight. This association is especially pronounced among children born to mothers of low socioeconomic status and among children born to mothers who score poorly on a mental health index.     

The Effects of Intrauterine Malnutrition on Birth and Fertility Outcomes: Evidence From the 1974 Bangladesh Famine

This article uses the Bangladesh famine of 1974 as a natural experiment to estimate the impact of intrauterine malnutrition on sex of the child and infant mortality. In addition, we estimate the impact of malnutrition on post-famine pregnancy outcomes. Using the 1996 Matlab Health and Socioeconomic Survey (MHSS), we find that women who were pregnant during the famine were less likely to have male children. Moreover, children who were in utero during the most severe period of the Bangladesh famine were 32 % more likely to die within one month of birth compared with their siblings who were not in utero during the famine. Finally, we estimate the impacts of the famine on subsequent pregnancy outcomes. Controlling for pre-famine fertility, we find that women who were pregnant during the famine experienced a higher number of stillbirths in the post-famine years. This increase appears to be driven by an excess number of male stillbirths.     

The Effect of Imputation Procedures on First Birth Intervals: Evidence from Five African Fertility Surveys

In most African societies there is little motivation to remember dates of demographic events with the level of precision required in demographic surveys. Consequently it is common that the large majority of survey respondents can provide only the calendar year of occurrence or their age at the time of the event. The World Fertility Survey Group decided to handle the problem of poor date reporting by using a computer program to impute the missing information. This article illustrates the effect of these imputation procedures on cross-national differentials in the proportion of premarital first births in Benin, Cameroon, Cote d’Ivoire, Ghana, and Nigeria. The analysis demonstrates that the exceptionally low proportion of premarital first births in Ghana is an artifact of the imputation procedures.     

怀孕年龄与胎次对出生缺陷的影响分析

本研究通过抽取浙江大学医学院附属妇产科医院某病区5782个病例(736例患病),从出生缺陷的角度,通过对妇女怀孕年龄及胎次与胎儿畸形患病率的关系对开放二胎政策之后的人口质量的影响进行分析,发现孕妇年龄过低(19岁以下)与过高(35岁以上)均会导致出生缺陷率提高;而胎次的影响比较复杂,对于24岁以下的年龄段来说,胎次越高,患病率越高,而对于25-44岁的孕妇来说,除了第4胎及以上的患病率较高,第2、3胎的患病率没有明显的差别。因此,放开二胎将不会对人口质量产生显著影响。     

母亲劳动供给行为与中国农村儿童健康

本文使用"中国家庭营养与健康调查"(CHNS)数据,测度了母亲劳动供给行为对于中国农村儿童健康的影响,重点研究了全职和兼职母亲在儿童不同的年龄阶段进入劳动力市场对于儿童健康的影响。研究结果显示:母亲进入劳动力市场并不必然导致母亲照料儿童时间的减少,从事兼职工作的母亲由于工作的灵活性对于儿童的照料甚至比不参加工作的母亲更为充分;此外,在母亲劳动收入增加的正效应的作用下,母亲从事全职、兼职工作对于儿童健康有正的影响,但兼职工作的影响并不显著。在控制住儿童健康对于母亲劳动供给的反作用之后发现,母亲在儿童0～2岁阶段进入劳动力市场会对儿童健康产生负面影响,但影响在统计上并不显著。     

Family Policies and the Western European Fertility Divide: Insights from a Natural Experiment in Belgium

Countries in Northwestern Europe, including Belgium, report cohort fertility levels of close to two children per woman; whereas Central European countries, such as Germany, have levels of around 1.6 children. In seeking to explain these differences, some scholars have stressed the role of the social policy context, while others have pointed to variation in fertility‐related social norms. But because these influences are interdependent, it is difficult to isolate their effects on fertility trends. This study attempts to disentangle these two factors by drawing on a quasi‐natural experiment. After World War I Germany was compelled to cede the Eupen–Malmedy territory to Belgium. The population of this region has retained its German linguistic identity, but has been subject to Belgian social policies. We examine whether the fertility trends in this German‐speaking region of Belgium follow the Belgian or the German pattern. Our findings indicate that they generally resemble the Belgian pattern. This suggests that institutional factors are important for understanding the current fertility differences in Western Europe.     

Variations in Natural Fertility: The Effect of Lactation and Other Determinants

The analysis focuses on average waiting times to a fertile conception, as derived from non-contraceptive exposure in second and higher-order birth intervals. Life-table estimates are derived from exposure in the two-year periods preceding the survey, for 20 surveys in Africa, Asia and Latin America undertaken as part of the WFS programme. Differences in the waiting time to conception are examined as a function of the duration of lactation and post partum abstinence. In addition, the extent to which variations in waiting times are produced by country and regional effects, and effects due to age, duration of marriage and parity are examined. The analysis points out the dangers of deriving estimates of natural fertility from the sub-group of women who never breastfed.     

Birth Territory: a theory for midwifery practice

The theory of Birth Territory describes, explains and predicts the relationships between the environment of the individual birth room, issues of power and control, and the way the woman experiences labour physiologically and emotionally. The theory was synthesised inductively from empirical data generated by the authors in their roles as midwives and researchers. It takes a critical post-structural feminist perspective and expands on some of the ideas of Michel Foucault. Theory synthesis was also informed by current research about the embodied self and the authors' scholarship in the fields of midwifery, human biology, sociology and psychology. In order to demonstrate the significance of the theory, it is applied to two clinical stories that both occur in hospital but are otherwise different. This analysis supports the central proposition that when midwives use 'midwifery guardianship' to create and maintain the ideal Birth Territory then the woman is most likely to give birth naturally, be satisfied with the experience and adapt with ease in the post-birth period. These benefits together with the reduction in medical interventions also benefit the baby. In addition, a positive Birth Territory is posited to have a broader impact on the woman's partner, family and society in general.     

人口出生性别比偏高：现状、成因与政策

20 0 3年 3月 9日上午 ,在北京召开的中央人口资源环境工作座谈会中共中央总书记胡锦涛发表了重要讲话 ,在这次讲话中他特别提出要重视出生性别比平衡的问题 ,中共中央宣传部、国家计划生育委员会等11部门也联合发出《关于综合治理出生人口性别比升高问题的意见》。为什么在计划生育政策成为我国的基本国策之后 ,为什么在生育率稳步下降的时候会把出生性别比提上日程上来 ,值得引起我们的关注。自实行计划生育政策以来 ,经过几十年的努力 ,我国的人口出生率和自然增长率都有大幅度的下降 ,已经初步进入稳定低生育水平 ,然而 80年代以来 ,伴…     

性别选择性人工流产对出生性别比影响强度的定量研究

文章以“性别人流指数”为量化指标具体反映中国的性别选择性人工流产对出生性别比升高的影响强度。结果显示,性别选择性人工流产对出生性别比升高的影响强度随着时间推移呈现逐渐增强趋势;不同人口社会学特征育龄妇女对出生性别比升高的影响强度也不一样,其中对农村中女儿户妇女影响比较大,特别是受教育程度比较低的育龄妇女。     

Maternal Health Care Seeking Behavior in a Post-Conflict HIPC: The Case of Rwanda

Rwanda is one of nine post-conflict heavily indebted poor countries (HIPC) of the world. There was a worsening of health indicators since the early nineties on account of conflict. In light of this, we examine factors affecting maternal health care seeking behavior in Rwanda using three rounds of Rwanda Demographic and Health Survey (RDHS) data (1992, 2000, and 2005). We find that progress towards increasing the share of assisted deliveries has been slow. There has been no significant increase in the proportion of women seeking antenatal care. This could partially explain why a large proportion of women continue to deliver at home without professional assistance. Further, women who gave birth in the 5 years preceding the 2000 RDHS are less likely to deliver in a health facility than those who gave birth in the 5 years preceding the 1992 RDHS. We do not find such a result for the year 2005. We also find that women are more likely to deliver at home with professional assistance in 2000 and 2005 compared to 1992.     

The Education Effect: Higher Educational Qualifications are Robustly Associated with Beneficial Personal and Socio-political Outcomes

Level of education is a predictor of a range of important outcomes, such as political interest and cynicism, social trust, health, well-being, and intergroup attitudes. We address a gap in the literature by analyzing the strength and stability of the education effect associated with this diverse range of outcomes across three surveys covering the period 1986–2011, including novel latent growth analyses of the stability of the education effect within the same individuals over time. Our analyses of the British Social Attitudes Survey, British Household Panel Survey, and International Social Survey Programme indicated that the education effect was robust across these outcomes and relatively stable over time, with higher education levels being associated with higher trust and political interest, better health and well-being, and with less political cynicism and less negative intergroup attitudes. The education effect was strongest when associated with political outcomes and attitudes towards immigrants, whereas it was weakest when associated with health and well-being. Most of the education effect appears to be due to the beneficial consequences of having a university education. Our results demonstrate that this beneficial education effect is also manifested in within-individual changes, with the education effect tending to become stronger as individuals age.     

Determinants of Korean Birth Intervals: The Confrontation of Theory and Data

In this analysis, data from the Korean National Fertility Survey of 1974 are used to seek to explain differences in the pace of fertility in terms of differences in contraception, breastfeeding and other intermediate variables. Strong effects are found for these variables, particularly contraception. Nonetheless, virtually none of the effects of the socio-economic variables can be explained in our full model. Overall, our first models, which included only the socio-economic variables, contained 44 significant coefficients. With the introduction of the intermediate variables, only eleven of these coefficients became non-significant (while six others became significant). Thus, though using excellent data, we cannot begin to reproduce what theory predicts. The analysis suggests that this is a consequence of both measurement error and omitted intermediate variables, such as coital frequency. There are strong theoretical reasons for attempting to elucidate the mediating role of proximate variables by using individual data. Nonetheless, these findings, together with similar results obtained by others, strongly suggest that this is not likely to be a fruitful line of future endeavour.