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Journal of Biosocial Science

Martin Marufu Gazimbi, Monica Akinyi Magadi
This study contributes to the dialogue on the prevention of mother-to-child HIV transmission (PMTCT) through the use of HIV and antenatal care (ANC) integrated services. The determinants of antenatal HIV testing in Zimbabwe were explored. Multilevel logistic regression models were applied to data for 8471 women from 406 clusters who gave birth in the 5 years preceding Zimbabwe Demographic and Health Surveys conducted in 2005/6 and 2010/11. The uptake of antenatal HIV testing was found to be determined by a wide range of individual-level factors relating to women's economic and demographic status, as well as HIV-related factors, including HIV awareness and stigma within the community...
March 6, 2018: Journal of Biosocial Science
Saifa Binte Sanawar, Mohammad Amirul Islam, Shankar Majumder, Farjana Misu
The aim of this study was to assess whether women's empowerment ensures reduced intimate partner violence (IPV). The differential relationship between women's empowerment and IPV among married women in Bangladesh was investigated using 2007 Demographic and Health Survey data. Logistic regression models were used to assess whether women's empowerment had any influence on their likelihood of experiencing IPV while controlling for other covariates. The analyses revealed that older cohorts of women, who were more empowered, were more vulnerable to physical violence than less-empowered, younger women...
March 6, 2018: Journal of Biosocial Science
Khaled Elsayed Ziada, Hanaa Abdelazim Mohamed Metwaly, Salaheldin Farah Bakhiet, Helen Cheng, Richard Lynn
This study was based on data for a sample of 1756 Egyptian primary school children (863 boys and 893 girls) aged 5-11 years assessed for intelligence with Raven's Coloured Progressive Matrices (CPM). The results showed that boys obtained a slightly higher IQ than girls and had greater variance.
March 5, 2018: Journal of Biosocial Science
Rosemary L Hopcroft
Fitness is always relative to the fitness of others in the group or breeding population. Even in very low-fertility societies, individual fitness as measured by the share of genes in subsequent generations may still be maximized. Further, sexual selection theory from evolutionary biology suggests that the relationship between status and fertility will differ for males and females. For this reason it is important to examine the relationship between status and fertility separately for males and females-something few demographic studies of fertility do...
March 5, 2018: Journal of Biosocial Science
Daniel C Oshi, Jordan Mckenzie, Martin Baxter, Royelle Robinson, Stephan Neil, Tayla Greene, Wayne Wright, Jeorghino Lodge
There is a high and increasing proportion of single-parent families in Jamaica. This has raised concerns about the potential impact of single-parent families on the social, cognitive and behavioural development of children, including their sexual relationships. The aim of this study was to investigate the association between being raised in a single-parent family and age of sexual debut among young people in Jamaica. The study was cross-sectional in design, and based on a multi-stage sampling procedure. The study was conducted in July/September 2016...
February 26, 2018: Journal of Biosocial Science
Alok Bhargava, Xiayun Tan
No abstract text is available yet for this article.
February 19, 2018: Journal of Biosocial Science
Curtis S Dunkel, Michael A Woodley Of Menie
The aim of this study was to investigate the association between maternal sensitivity and offspring intelligence in late childhood and adolescence. Secondary data (N=117) from the Block and Block (2006a, b) 30-year longitudinal study of Californian children, which began in the late 1960s, was used to test the hypothesis that maternal sensitivity in childhood would be predictive of late childhood and adolescent intelligence. Correlational analyses revealed that maternal sensitivity, as judged by raters viewing mother's interactions with their children in a set of four joint structured cognitive tasks when the child was 5 years of age, was associated with verbal and performance IQ test scores when the children were ages 11 and 18...
February 15, 2018: Journal of Biosocial Science
Konstantinos N Zafeiris, Stamatina Kaklamani
This study aimed to delineate temporal trends and differentials of completed fertility and their relationship with some characteristics of the marriage system in specific anthropological populations of northern Greece. The analysis was based on the life history of quinquennial and decennial birth cohorts of married women born in the 20th century who reproduced solely within the settlements studied. The variables studied were: children ever born, mean age of mother at first marriage, mean age of mother at first child (live birth), mean age of mother at last child and reproductive span...
February 6, 2018: Journal of Biosocial Science
Fatos Selita, Yulia Kovas
Research has established that genetic differences among people explain a greater or smaller proportion of the variation in life outcomes in different environmental conditions. This review evaluates the results of recent educationally relevant behavioural genetic studies and meta-analyses in the context of recent trends in income and wealth distribution. The pattern of results suggests that inequality and social policies can have profound effects on the heritability of educational attainment and achievement in a population (Gene-Gini interplay)...
February 1, 2018: Journal of Biosocial Science
Monika Krzy┼╝anowska, C G Nicholas Mascie-Taylor
The aim of this study was to test whether Body Mass Index (BMI), waist circumference, systolic and diastolic blood pressure, Forced Expiratory Volume (FEV1) and Peak Expiratory Flow (PEF) vary in relation to social class at birth and adulthood, educational level and region of residence, and also with inter-generational social, educational and regional mobility/migration. The study used 5702 adults (2894 males and 2718 females) from the longitudinal British National Child Development Study (all children born in England, Scotland and Wales during the first week in March 1958 with follow-up throughout childhood and adulthood, most recently at 55 years of age)...
February 1, 2018: Journal of Biosocial Science
Melissa Ward-Peterson, Kristopher Fennie, Sarah Baird, Stefany Coxe, Mary Jo Trepka, Purnima Madhivanan
The objective of this study was to examine the association between multilevel factors related to HIV awareness and risky sexual behaviour among young women in Zomba district, Malawi. Secondary analyses of the Schooling, Income, and Health Risk (SIHR) study were undertaken. Four outcomes related to risky sexual behaviour were examined among young women: if participants had ever had sex, consistent condom use and two scores measuring risk related to partner history and age during sexual activity. Independent variables included individual-level factors such as education and rural/urban residence, as well as higher-level factors such as household's highest level of education and health facility characteristics...
January 30, 2018: Journal of Biosocial Science
Annah V Bengesai, Hafiz T A Khan, Russell Dube
Although young people in South Africa are growing up in an era where their socioeconomic circumstances are seemingly better than those of their parents' generation, they face greater risks in their trajectory to adulthood. This is mainly because the environment in which they are making sexual decisions is also rapidly evolving. Currently, South Africa has the highest prevalence of HIV and AIDS in the world among young people aged 15-24. This study examined the effect of sexual behaviours initiated in adolescence on enrolment in post-secondary education...
January 21, 2018: Journal of Biosocial Science
Nai-Peng Tey, Siow-Li Lai, Sor-Tho Ng
There has been a secular decline in age at menarche since the 19th century. Early-maturing women are more likely to have their sexual debut at a younger age, which in turn gives rise to a host of reproductive health and social problems. This study used data from five waves of National Demographic and Health Surveys conducted in the Philippines between 1993 and 2013 to examine the trends and socioeconomic differentials in age at menarche and sexual debut. The changing trend in age at menarche and sexual debut was examined across birth cohorts, and logistic regressions were used to identify the determinants of early sexual debut...
January 21, 2018: Journal of Biosocial Science
Apoorva Jadhav, Emily Vala-Haynes
Globally, female sterilization is one of the most popular contraceptive methods despite concerns about quality of care for women who report being sterilized. In this study, informed choice among sterilized women was quantified using Demographic and Health Survey (DHS) data from 2000 to 2012 for countries in South Asia and Latin America. Three responses measured informed choice and knowledge about whether women were informed by a health worker or provider: that sterilization is permanent, the potential side-effects of sterilization and other methods of contraception...
January 18, 2018: Journal of Biosocial Science
Zainab Oseni, Farah Seedat, Ngianga-Bakwin Kandala
Zimbabwe has one of the worst HIV epidemics in the world. This study investigated data from two successive Zimbabwe Demographic and Health Surveys (ZDHS) conducted in 2005-06 and 2010-11. A random representative sample of 30,000 men aged 15-59 and women aged 15-49 was selected from the two surveys. The HIV prevalence was mapped with a flexible, coherent regression framework using a geo-additive semi-parametric mixed model. HIV indicator prevalence maps were constructed at the regional level, and at the administrative level relevant for policy design, planning and decision-making...
January 15, 2018: Journal of Biosocial Science
Mesbah Fathy Sharaf, Elhussien Ibrahim Mansour, Ahmed Shoukry Rashad
This study examined the underlying demographic and socioeconomic determinants of child nutritional status in Egypt using data from the most recent round of the Demographic and Health Survey. The height-for-age Z-score (HAZ) was used as a measure of child growth. A quantile regression approach was used to allow for a heterogeneous effect of each determinant along different percentiles of the conditional distribution of the HAZ. A nationally representative sample of 13,682 children aged 0-4 years was drawn from the 2014 Egypt DHS...
January 10, 2018: Journal of Biosocial Science
Min Qin, Jane Falkingham, Sabu S Padmadas
Although China's family planning programme is often referred to in the singular, most notably the One-Child policy, in reality there have been a number of different policies in place simultaneously, targeted at different sub-populations characterized by region and socioeconomic conditions. This study attempted to systematically assess the differential impact of China's family planning programmes over the past 40 years. The contribution of Parity Progression Ratios to fertility change among different sub-populations exposed to various family planning policies over time was assessed...
January 10, 2018: Journal of Biosocial Science
Son Nghiem, Viet-Ngu Hoang, Xuan-Binh Vu, Clevo Wilson
This paper proposes a new empirical model for examining the relationship between obesity and school performance using the simultaneous equation modelling approach. The lagged effects of both learning and health outcomes were included to capture both the dynamic and inter-relational aspects of the relationship between obesity and school performance. The empirical application of this study used comprehensive data from the first five waves of the Longitudinal Study of Australian Children (LSAC), which commenced in 2004 (wave 1) and was repeated every two years until 2018...
December 4, 2017: Journal of Biosocial Science
Salma Ahmed, Ranjan Ray
This study aimed to assess whether shocks experienced by children in the mother's womb can have an adverse effect on their future health, and whether these effects can be ameliorated by government welfare schemes. Data were taken from three phases of the Young Lives Survey carried out in the Indian state of Andhra Pradesh in 2002, 2007 and 2009-2010. Different types of in utero shock were distinguished from the data. Using ordinary least squares (OLS) estimation, it was observed that multiple in utero shocks reduced children's weight-for-age and height-for-age z-scores by 0...
November 27, 2017: Journal of Biosocial Science
Yohanes Sondang Kunto, Hilde Bras
In contrast to the extensive knowledge on the association between women's empowerment and the nutritional status of children under the age of five, relatively little is known about the influence of women's empowerment on adolescents' nutritional status. This study aimed to assess the association between women's empowerment and gender inequalities in adolescent nutritional status. Data were from the Indonesian Family Life Survey (IFLS) covering the period 1997 to 2015, and consisted of 16,683 observations from 13,396 adolescents between the ages of 10 and 19 years born in 6781 families...
November 23, 2017: Journal of Biosocial Science
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