Intergenerational transmission between quilombola mothers and daughters: reproductive autonomy and intervening factors / Transmisión intergeracional entre madres e hijas quilombolas: autonomía reproductiva y factores intervinientes / Transmissão intergeracional entre mães e filhas quilombolas: autonomia reprodutiva e fatores intervenientes

ABSTRACT Objective: to analyze reproductive autonomy in quilombola women and the intervening factors of intergenerational transmission between mothers and daughters. Method: a cross-sectional and analytical study developed with 160 women, mothers and daughters from quilombola communities in the municipality of Vitória da Conquista, Bahia. The National Health Survey questionnaire was used to verify sociodemographic characteristics and intervening factors; and the Reproductive Autonomy Scale was also employed. The Chi-square, Mann-Whitney and Wilcoxon tests were applied. The data were analyzed by means of simple and multiple linear regression. Results: the group of mothers presented higher frequency of women that are married or live with a partner (66.2%), who worked (51.2%) and who had higher incomes (358.00 ± 663.00). The daughters presented more years of study (10.50 ± 5.00). Reproductive autonomy and intergenerational transmission between mothers and daughters mainly occur in the Absence of coercion (ICC=0.70; p=0368) and Communication (ICC=0.69; p=0694) domains. The mother's age (ß-adjusted=-0.027; p=0.039) and the daughter's skin color/race (ß-adjusted=0.423; p=0.049) were intervening factors in intergenerational transmission related to Decision-making, associated with the mother's age and with the daughter's self-recognition as black-skinned. Conclusion: the daughters do not follow the same choice as their mothers, which can be understood due to greater accessibility to reproductive planning services and increased schooling levels. Intergenerational transmission among quilombolas presents important specificities for reproductive decisions and enables a better understanding of the information and qualification of the health professionals' assistance in the care provided to these women.

RESUMEN Objetivo: analizar la autonomía reproductiva en mujeres quilombolas y los factores intergeneracionales de transmisión entre madres e hijas. Método: estudio transversal y analítico desarrollado con 160 mujeres, madres e hijas de comunidades quilombolas de la ciudad de Vitória da Conquista, Bahía. Se utilizó el cuestionario de la Pesquisa Nacional de Saúde para verificar las características sociodemográficas y los factores intervinientes; y la Escala de Autonomía Reproductiva. Se aplicaron las pruebas de Chi-cuadrado, Mann-Whitney y Wilcoxon. Los datos se analizaron mediante regresión lineal simple y múltiple. Resultados: el grupo de madres presentó mayor frecuencia de mujeres casadas o con pareja (66,2%), que trabajaban (51,2%) y tenían mayores ingresos (358,00 ± 663,00). Las hijas presentaron más años de escolaridad (10,50 ± 5,00). La autonomía reproductiva y la transmisión intergeneracional entre madres e hijas ocurren especialmente en los dominios Ausencia de Coerción (CCI=0,70; p=0368) y Comunicación (CCI=0,69; p=0694). La edad de la madre (ß-ajustada=-0.027; p=0.039) y la etnia / raza de la hija (ß-ajustada=0.423; p=0.049) fueron factores que intervinieron en la transmisión intergeneracional relacionada con la Toma de Decisiones, asociada a una menor edad de la madre y al autorreconocimiento de la hija como negra. Conclusión: las hijas no siguen la misma opción que sus madres, lo que puede explicarse debido a la mayor accesibilidad a los servicios de planificación reproductiva y mayores niveles de educación. La transmisión intergeneracional entre quilombolas presenta importantes especificidades para las decisiones reproductivas y permite una mejor comprensión de la información y la calificación de la asistencia de los profesionales de la salud en el cuidado de estas mujeres.

RESUMO Objetivo: analisar a autonomia reprodutiva em mulheres quilombolas e os fatores intervenientes da transmissão intergeracional entre mães e filhas. Método: estudo transversal e analítico desenvolvido com 160 mulheres, mães e filhas de comunidades quilombolas do município de Vitória da Conquista, Bahia. Utilizou-se o questionário da Pesquisa Nacional de Saúde para verificar características sociodemográficas e fatores intervenientes; e a Escala de Autonomia Reprodutiva. Foram aplicados testes qui-quadrado, Mann-Whitney e Wilcoxon. Os dados foram analisados através de regressão linear simples e múltipla. Resultados: o grupo das mães apresentou maior frequência de mulheres casadas ou com companheiro (66,2%), que trabalhavam (51,2%) e maior renda (358,00 ± 663,00). As filhas apresentaram mais anos de estudo (10,50 ± 5,00). A autonomia reprodutiva e a transmissão intergeracional entre mães e filhas ocorrem, sobretudo, nos domínios Ausência de Coerção (CCI=0,70; p=0368) e Comunicação (CCI=0,69; p=0694). A idade da mãe (ß-ajustado=-0,027; p=0,039) e cor/raça da filha (ß-ajustado=0,423; p=0,049) foram fatores intervenientes na transmissão intergeracional relacionada a Tomada de Decisão, associados a menor idade da mãe e ao autorreconhecimento da filha como negra. Conclusão: as filhas não acompanham a mesma escolha das mães, o que pode ser entendido por uma maior acessibilidade aos serviços de planejamento reprodutivo e aumento nos níveis de escolaridade. A transmissão intergeracional entre quilombolas apresenta especificidades importantes para decisões reprodutivas e possibilita melhor entendimento das informações e qualificação da assistência dos profissionais de saúde no cuidado com essas mulheres.

Inequalities in early marriage, childbearing and sexual debut among adolescents in sub-Saharan Africa.

BACKGROUND: Adolescent sexual and reproductive health (ASRH) is a major public health concern in sub-Saharan Africa (SSA). However, inequalities in ASRH have received less attention than many other public health priority areas, in part due to limited data. In this study, we examine inequalities in key ASRH indicators. METHODS: We analyzed national household surveys from 37 countries in SSA, conducted during 1990-2018, to examine trends and inequalities in adolescent behaviors related to early marriage, childbearing and sexual debut among adolescents using data from respondents 15-24 years. Survival analyses were conducted on each survey to obtain estimates for the ASRH indicators. Multilevel linear regression modelling was used to obtain estimates for 2000 and 2015 in four subregions of SSA for all indicators, disaggregated by sex, age, household wealth, urban-rural residence and educational status (primary or less versus secondary or higher education). RESULTS: In 2015, 28% of adolescent girls in SSA were married before age 18, declined at an average annual rate of 1.5% during 2000-2015, while 47% of girls gave birth before age 20, declining at 0.6% per year. Child marriage was rare for boys (2.5%). About 54% and 43% of girls and boys, respectively, had their sexual debut before 18. The declines were greater for the indicators of early adolescence (10-14 years). Large differences in marriage and childbearing were observed between adolescent girls from rural versus urban areas and the poorest versus richest households, with much greater inequalities observed in West and Central Africa where the prevalence was highest. The urban-rural and wealth-related inequalities remained stagnant or widened during 2000-2015, as the decline was relatively slower among rural and the poorest compared to urban and the richest girls. The prevalence of the ASRH indicators did not decline or increase in either education categories. CONCLUSION: Early marriage, childbearing and sexual debut declined in SSA but the 2015 levels were still high, especially in Central and West Africa, and inequalities persisted or became larger. In particular, rural, less educated and poorest adolescent girls continued to face higher ASRH risks and vulnerabilities. Greater attention to disparities in ASRH is needed for better targeting of interventions and monitoring of progress.

Childlessness and Social Support in Old Age in China.

Although previous studies showed that children are the primary source of old-age support in China, much less is known about the availability and sources of social support among childless elders. Also, little research has explored how older adults' social support transitions over time by childless status. Using the 2005 and 2011 Chinese Longitudinal Healthy Longevity Survey (N = 14,575), this study examined the transition of living arrangement and sources of social support by childless status among adults aged 65 and older. A series of multinomial logistic and linear regression models were used to analyze the data. Results show that compared to elders with children, childless elders were more likely to live alone or in an institution at baseline, but their probability of living alone decreased substantially while that of living in an institution increased modestly in the 6-year follow-up. Moreover, childless elders generally had fewer support sources, but this disadvantage became smaller over time. Although childless elders were significantly more likely to depend on nobody, the spouse, grandchildren (or other relatives), or nonrelatives for support at baseline, this pattern disappeared in the follow-up likely due to mortality selection. Findings imply that although the risk of social isolation among childless elders becomes lower as age progresses, garnering more social resources at younger ages may help reduce their premature mortality.

Women's reproductive behaviour and perspectives on fertility, and their modifying factors, in a Turkish province with a high fertility rate.

OBJECTIVES: Population growth is an important public health problem with economic, social, cultural and political consequences. The aim of the study was to determine the reproductive behaviour and perspectives on fertility of women in Sanliurfa, the city with the highest fertility rate in Turkey. METHODS: The quantitative dimension of the study was carried out using a mixed methods approach in which 300 women were interviewed and a questionnaire was completed; the qualitative dimension was carried out through in-depth individual interviews with 14 women, using a semi-structured interview form. Analysis of the qualitative data was done using a content analysis technique. RESULTS: The median number of children was three (range 0-10). Women with no or a low level of education tended to have a greater number of children. Preference for a particular sex of child was one reason behind the higher number of children. These two factors were main causes of an increased number of children. Women with no or a low level of education (odds ratio [OR] 9.1) and women who expressed a preference for a male child (OR 5.9) had more children compared with other women. Participants regarded a male child as more valuable than a female child and that having many children strengthened the family. Parents regarded their sons as insurance for their old age. Having an induced abortion was perceived as a sin. CONCLUSION: The results showed that cultural norms and values significantly affected fertility rates.

The Social Significance of Interracial Cohabitation: Inferences Based on Fertility Behavior.

Interracial couples cohabit at higher rates than same-race couples, which is attributed to lower barriers to interracial cohabitation relative to intermarriage. This begs the question of whether the significance of cohabitation differs between interracial and same-race couples. Using data from the 2006-2017 National Survey of Family Growth, we assessed the meaning of interracial cohabitation by comparing the pregnancy risk, pregnancy intentions, and union transitions following a pregnancy among women in interracial and same-race cohabitations. The pregnancy and union transition behaviors of women in White-Black cohabitations resembled those of Black women in same-race cohabitations, suggesting that White-Black cohabitation serves as a substitute to marriage and reflecting barriers to the formation of White-Black intermarriages. The behaviors of women in White-Hispanic cohabitations fell between those of their same-race counterparts or resembled those of White women in same-race cohabitations. These findings suggest that White-Hispanic cohabitations take on a meaning between trial marriage and substitute to marriage and support views that Hispanics with White partners are a more assimilated group than Hispanics in same-race unions. Results for pregnancy intentions deviated from these patterns. Women in White-Black cohabitations were less likely than Black women in same-race cohabitations to have an unintended pregnancy, suggesting that White-Black cohabitations are considered marriage-like unions involving children. Women in White-Hispanic cohabitations were more likely than White and Hispanic women in same-race cohabitations to have an unintended pregnancy, reflecting possible concerns about social discrimination. These findings indicate heterogeneity in the significance of interracial cohabitation and continuing obstacles to interracial unions.

Changes in individual and contextual socio-economic level influence on reproductive behavior in Spanish women in the MCC-Spain study.

BACKGROUND: The association between socioeconomic level and reproductive factors has been widely studied. For example, it is well known that women with lower socioeconomic status (SES) tend to have more children, the age at first-born being earlier. However, less is known about to what extent the great socioeconomic changes occurred in a country (Spain) could modify women reproductive factors. The main purpose of this article is to analyze the influence of individual and contextual socioeconomic levels on reproductive factors in Spanish women, and to explore whether this influence has changed over the last decades. METHODS: We performed a cross-sectional design using data from 2038 women recruited as population-based controls in an MCC-Spain case-control study. RESULTS: Higher parent's economic level, education level, occupational level and lower urban vulnerability were associated with higher age at first delivery and lower number of pregnancies. These associations were stronger for women born after 1950: women with unfinished primary education had their first delivery 6 years before women with high education if they were born after 1950 (23.4 vs. 29.8 years) but only 3 years before if they were born before 1950 (25.7 vs. 28.0 years). For women born after 1950, the number of pregnancies dropped from 2.1 (unfinished primary school) to 1.7 (high education), whereas it remained almost unchanged in women born before 1950. CONCLUSIONS: Reproductive behavior was associated with both individual and area-level socio-economic indicators. Such association was stronger for women born after 1950 regarding age at first delivery and number of pregnancies and for women born before 1950 regarding consumption of hormonal contraceptives or postmenopausal therapy.

Migración internacional y fecundidad: el caso de la migración boliviana, paraguaya y peruana en la Ciudad de Buenos Aires en el período reciente / International migration and fertility: the case of the bolivian, paraguayan and peruvian migration in the City of Buenos Aires in the recent period

Este trabajo analiza la fecundidad de mujeres migrantes nacidas en Bolivia, Paraguay y Perú, residentes en la Ciudad Autónoma de Buenos Aires durante la primera década del siglo XXI. A través de un análisis de período (2001 y 2010) y de cohorte de mujeres que han concluido su ciclo reproductivo (1951-1955 y 1961-1965), se examinan indicadores de nivel, estructura por edad e intensidad de este componente. Se establece una comparación con la fecundidad de la población nativa argentina y de los respectivos países de origen de las migrantes, tomando como referencia conceptual cuatro modelos que intentan explicar la interacción entre la migración internacional y la fecundidad. En congruencia con los antecedentes en la materia, los resultados muestran que la fecundidad de las migrantes es mayor que la de las mujeres autóctonas y posee una estructura precoz en relación con estas. Asimismo,la fecundidad de los distintos colectivos analizados es menor y posee una estructura por edad más envejecida en comparación con la población femenina de origen. (AU)

Childbearing across borders: Fertility and parenthood attitudes and decisions among breast cancer survivors in USA and Portugal.

OBJECTIVE: To compare fertility and childbearing attitudes and decisions of Portuguese and American female reproductive aged breast cancer survivors. METHODS: This was a cross-sectional study of 102 young breast cancer survivors (59 from Portugal and 43 from USA). Demographic, clinical and reproductive information were collected. Fertility and parenthood attitudes and decisions were assessed through a self-report questionnaire devised specifically for the study. RESULTS: Fertility issues became very important after the diagnosis for most of the women (51%). Few differences existed between USA and Portuguese participants. USA participants were more likely to undergo FP (23% USA vs Portugal 5%, p = 0.01). Portuguese women were more dissatisfied with their physician's explanations about fertility (Portugal: 23% vs USA: 3%; p = 0.01). Overall, women relied on their oncologist for fertility information (70%); only Portuguese women discussed fertility with their family medicine physician (11%). Overall, women showed positive attitudes towards motherhood. Portuguese women were more likely to report their partners placed more value on the family after their illness (Portuguese agree: 55% vs USA agree: 14%; p < 0.001). CONCLUSIONS: Fertility and childbearing after breast cancer are important issues regardless of culture, background or country's heath care system. Overall, few differences across the USA and Portuguese samples were found on fertility and childbearing attitudes and decisions.

Sexual and reproductive health behavior and unmet needs among a sample of adolescents living with HIV in Zambia: a cross-sectional study.

BACKGROUND: Adolescents living with HIV face challenges, such as disclosure of HIV status, adherence to antiretroviral therapy, mental health, and sexual and reproductive health (SRH). These challenges affect their future quality of life. However, little evidence is available on their sexual behaviors and SRH needs in Zambia. This study aimed at assessing their sexual behaviors and SRH needs and identifying factors associated with marriage concerns and a desire to have children. METHODS: This cross-sectional study was conducted at the University Teaching Hospital from April to July 2014. We recruited 200 adolescents aged 15-19 years who were aware of their HIV-positive status. We collected data on their first and recent sexual behavior, concerns about marriage, and desire to have children. We used the Generalized Linear Model to identify factors associated with having concerns about marriage and desire to have children. We performed thematic analysis with open-ended data to determine their perceptions about marriage and having children in the future. RESULTS: Out of 175 studied adolescents, 20.6% had experienced sexual intercourse, and only 44.4% used condoms during the first intercourse. Forty-eight percent had concerns about marriage, and 87.4% desired to have children. Marriage-related concerns were high among those who desired to have children (adjusted relative risk [ARR] = 2.51, 95% CI = 1.02 to 6.14). Adolescents who had completed secondary school were more likely to desire to have children (ARR = 1.35, 95% CI = 1.07 to 1.71). Adolescents who had lost both parents were less likely to want children (ARR = 0.80, 95% CI = 0.68 to 0.95). Thematic analysis identified that major concerns about future marriage were fear of disclosing HIV status to partners and risk of infecting partners and/or children. The reasons for their willingness to have children were the desire to be a parent, having children as family assets, a human right, and a source of love and happiness. CONCLUSIONS: Zambian adolescents living with HIV are at risk of engaging in risky sexual relationships and have difficulties in meeting needs of SRH. HIV care service must respond to a wide range of needs.

POST-TRANSITIONAL FERTILITY: THE ROLE OF CHILDBEARING POSTPONEMENT IN FUELLING THE SHIFT TO LOW AND UNSTABLE FERTILITY LEVELS.

This study discusses fertility trends and variation in countries that completed the transition from high to around-replacement fertility in the 1950s to 1980s, especially in Europe, East Asia and North America, and summarizes the key relevant findings for those countries with a more recent experience of fertility decline towards replacement level. A central finding is that there is no obvious theoretical or empirical threshold around which period fertility tends to stabilize. Period fertility rates usually continue falling once the threshold of replacement fertility is crossed, often to very low levels. While cohort fertility rates frequently stabilize or change gradually, period fertility typically remains unstable. This instability also includes marked upturns and reversals in Total Fertility Rates (TFRs), as experienced in many countries in Europe in the early 2000s. The long-lasting trend towards delayed parenthood is central for understanding diverse, low and unstable post-transitional fertility patterns. In many countries in Europe this shift to a late childbearing pattern has negatively affected the TFR for more than four decades. Many emerging post-transitional countries and regions are likely to experience a similar shift over the next two to three decades, with a depression of their TFRs to very low levels.

Transitions in pregnancy planning in women recruited for a large prospective cohort study.

STUDY QUESTION: Do the rates at which women transition among different intensities of pregnancy planning vary with age, marital status and race/ethnicity? SUMMARY ANSWER: Rates of transition from low or moderate pregnancy probability groups (PPGs) to higher PPGs vary by age, marital status and race/ethnicity. WHAT IS KNOWN ALREADY: The design of prospective studies of the effects of pre- and peri-conception exposures on fecundity, pregnancy and children's health is challenging because at any specific time only a small percentage of reproductive age women is attempting to conceive. To our knowledge, there has been no population-based, prospective study that repeatedly assessed pregnancy planning, which included women who were not already planning pregnancy at enrollment and whose ages spanned the female reproductive age range. STUDY DESIGN, SIZE, DURATION: A longitudinal study was carried out that repeatedly assessed pregnancy probability in 12 916 women for up to 21 months from January 2009 to September 2010. PARTICIPANTS/MATERIALS, SETTING, METHOD: We analyzed data from the National Children's Study Vanguard Study, a pilot study for a large-scale epidemiological birth cohort study of children and their parents. During the Vanguard Study, investigators followed population-based samples of reproductive age women in each of seven geographically dispersed and diverse study locations over time to identify when they sought to become pregnant, providing a unique opportunity to prospectively assess changes in pregnancy planning in a large sample of US women. At study entry and each follow-up contact, which occurred at 1, 3 or 6 month intervals depending on PPG, a questionnaire was used to assess behavior dimensions of pregnancy planning to assign women to low, moderate, high non-tryer and high tryer PPGs. MAIN RESULTS AND THE ROLE OF CHANCE: Crude rates of pregnancy increased with higher assigned PPG, validating the utility of the instrument. The initial PPG and probabilities of transitioning from low or moderate PPG to higher PPG or pregnancy varied with age, marital status and race/ethnicity. Women aged 25 to <35 years had shorter times to transition to higher PPGs or to pregnant compared with women <25 years. Women who were not currently married had longer times to transition from any initial PPG to pregnant, high tryer or high non-tryer status than currently married women. Non-Hispanic Black (NHB) and Hispanic women had shorter time to transition from low or moderate to high non-tryer than non-Hispanic White (NHW) women. NHB women also had shorter time to transition from low to high tryer than NHW women. High tryers are more likely to be aged 25 to <30 years, to be married, and to be Hispanic, NHB or other race/ethnicity than women in the low PPG. LIMITATIONS, REASONS FOR CAUTION: Loss to follow-up varied by age, marital status and race/ethnicity. Although weights were not developed for the Vanguard study, the self-weighting design minimizes the bias of unweighted analysis. Nonetheless, the SEs for some estimates may be under-estimated. WIDER IMPLICATIONS OF THE FINDINGS: Our results show that demographic characteristics are strong predictors of women's behaviors toward pregnancy. The results further show that frequent follow-up assessments of pregnancy planning behavior in large numbers of women are required to recruit an unbiased sample of preconception women. These findings will be useful to investigators designing prospective studies of fecundability, pregnancy outcomes and children's health. STUDY FUNDING/COMPETING INTERESTS: National Institutes of Health (contracts N01-HD53414, N01-HD63416, N01-HD53410, N01-HD53415, N01-HD53396, N01-HD53413 and N01-HD-53411; grant R21 ES016846) and by the University of California Irvine Center for Occupational and Environmental Health. No competing interests. TRIAL REGISTRATION NUMBER: None.

Fertility awareness and attitudes towards parenthood among Danish university college students.

BACKGROUND: Postponing parenthood has steadily increased during the past decades in Western countries. This trend has affected the size of families in the direction of fewer children born per couple. In addition, higher maternal age is associated with an increased risk of pregnancy-related complications such as prematurity and foetal death, while higher paternal age increases the risk of miscarriage and affects time-to-pregnancy. Hence, understanding the circumstances and reflections that influence the decision is greatly needed and little is known about potential gender difference influencing the choice. The aim was to investigate attitudes towards parenthood, intentions for childbirth and knowledge about fertility issues among men and women. METHODS: We conducted a cross-sectional study based on a validated 49-item questionnaire among students, who attended selected mandatory lectures at a Danish university college in February to April 2016. The participation rate was 99%, and 517 completed the questionnaire. RESULTS: Though the majority of all participants wished to have children in the future (>86%), there was significant difference between the genders (p = 0.002). Women rated having children to be more important than men did (p < 0.001), while men rated higher the likelihood of abstaining from having children if faced with infertility (p = 0.003). Knowledge about fertility issues was similar between genders including poor knowledge about the age-related decline in female fertility. While women found it more important to have children before being 'too old' (p = 0.04), still more than 40% of all respondents intended to have their last child after the age of 35 years. For both genders the most important prerequisite for parenthood was having a partner to share responsibility with. Perceived or experienced life changes related to parenthood were generally positive such as personal development. CONCLUSION: The majority of respondents wished to have children, but many desired to have these after the biological decline in female fertility. The moderate knowledge level among both genders uncovered in this study is of concern. Future research should address the potential link between fertility knowledge and planning of parenthood. We may benefit from intervention studies examining the effect of routine preconception care.

The Reproductive Ecology of Industrial Societies, Part II : The Association between Wealth and Fertility.

Studies of the association between wealth and fertility in industrial populations have a rich history in the evolutionary literature, and they have been used to argue both for and against a behavioral ecological approach to explaining human variability. We consider that there are strong arguments in favor of measuring fertility (and proxies thereof) in industrial populations, not least because of the wide availability of large-scale secondary databases. Such data sources bring challenges as well as advantages, however. The purpose of this article is to illustrate these by examining the association between wealth and reproductive success in the United States, using the National Longitudinal Study of Youth 1979. We conduct a broad-based exploratory analysis of the relationship between wealth and fertility, employing both cross-sectional and longitudinal approaches, and multiple measures of both wealth (income and net worth) and fertility (lifetime reproductive success and transitions to first, second and third births). We highlight the kinds of decisions that have to be made regarding sample selection, along with the selection and construction of explanatory variables and control measures. Based on our analyses, we find a positive effect of both income and net worth on fertility for men, which is more pronounced for white men and for transitions to first and second births. Income tends to have a negative effect on fertility for women, while net worth is more likely to positively predict fertility. Different reproductive strategies among different groups within the same population highlight the complexity of the reproductive ecology of industrial societies. These results differ in a number of respects from other analyses using the same database. We suggest this reflects the impossibility of producing a definitive analysis, rather than a failure to identify the "correct" analytical strategy. Finally, we discuss how these findings inform us about (mal)adaptive decision-making.

The Reproductive Ecology of Industrial Societies, Part I : Why Measuring Fertility Matters.

Is fertility relevant to evolutionary analyses conducted in modern industrial societies? This question has been the subject of a highly contentious debate, beginning in the late 1980s and continuing to this day. Researchers in both evolutionary and social sciences have argued that the measurement of fitness-related traits (e.g., fertility) offers little insight into evolutionary processes, on the grounds that modern industrial environments differ so greatly from those of our ancestral past that our behavior can no longer be expected to be adaptive. In contrast, we argue that fertility measurements in industrial society are essential for a complete evolutionary analysis: in particular, such data can provide evidence for any putative adaptive mismatch between ancestral environments and those of the present day, and they can provide insight into the selection pressures currently operating on contemporary populations. Having made this positive case, we then go on to discuss some challenges of fertility-related analyses among industrialized populations, particularly those that involve large-scale databases. These include "researcher degrees of freedom" (i.e., the choices made about which variables to analyze and how) and the different biases that may exist in such data. Despite these concerns, large datasets from multiple populations represent an excellent opportunity to test evolutionary hypotheses in great detail, enriching the evolutionary understanding of human behavior.

Reproductive Responses to Economic Uncertainty : Fertility Decline in Post-Soviet Ust'-Avam, Siberia.

In the face of economic and political changes following the end of the Soviet Union, total fertility rates fell significantly across the post-Soviet world. In this study we examine the dramatic fertility transition in one community in which the total fertility rate fell from approximately five children per woman before 1993 to just over one child per woman a decade later. We apply hypotheses derived from evolutionary ecology and demography to the question of fertility transition in the post-Soviet period, focusing on an indigenous community (Ust'-Avam) in the Taimyr Region, northern Russia. We employ a mixed parametric accelerated failure-time model that allows comparison of age at first birth, interbirth interval, and reproductive postponement or cessation prior to and following 1993. We find that short-term reproductive delay alone does not explain the dramatic drop in fertility in Ust'-Avam. Age at first birth remains constant. Interbirth intervals increase moderately. The estimated fraction of women who have ceased or indefinitely postponed reproducing doubles (for parities 2 through 4) or triples (for nulliparous women). We caution against assuming that environmental harshness necessarily leads to earlier and more rapid reproduction. An evolutionary theory of fertility responses to acute environmental shocks remains relatively undeveloped. In such contexts it is possible that selection favors a conservative reproductive strategy while more information is learned about the new environment. When investigating fertility responses to environmental stressors we suggest researchers examine postponement and stopping behavior in addition to changes in age at first birth and interbirth interval.

Differences in Obesity Rates Among Minority and White Women: The Latent Role of Maternal Stress.

White and minority women experience different rates of obesity in the United States. Yet our understanding of the dynamics that give rise to this gap remains limited. This article presents a conceptual framework that considers pathways leading to these different rates. It draws upon the life-course perspective, allostatic load, and the weathering hypothesis to identify pathways linking childbearing, stress, and obesity. This conceptual framework extends prior work by identifying age at first birth as an important parameter that influences these pathways. Empirical evidence to test these pathways is needed.

Knowledge on legislation of abortion and experience of abortion among female youth in Nepal: A cross sectional study.

BACKGROUND: Abortion has been legal in Nepal since 2002 and the country has made striking progress in rolling out induced abortion services. It led to well-known changes in reproductive behavior, however knowledge about legislation and abortion experience by female youth has been least investigated. This paper is an attempt to examine knowledge about legislation of abortion and abortion experiences among female youth in Nepal. METHODS: This paper uses data from the Nepal Demographic and Health Survey (NDHS 2011). The analysis is confined to female youth aged 15-24 (n = 5050). Both bivariate and multivariate analyses have been performed to describe the knowledge about law and experience of abortion. The bivariate analysis (chi-square test) was applied to examine the association between dependent variables and female youth's demographic, socioeconomic, and cultural characteristics. Besides bivariate analysis, the net effect of each independent variable on the dependent variable after controlling for the effect of other predictors has also been measured through multivariate analysis (logistic regression). RESULTS: Only two-fifth (41%) female youth was aware of abortion legislation in the country. Knowledge on at least one condition of abortion law is even lower (21%). Less than two percent (1.5%) female youth reported that they ever had an abortion. The multivariate analysis found that the knowledge and experience of abortion varied with different settings. Youth aged 20-24 [adjusted odds ratio (aOR) = 1.3; 95% CI 1.7-5.0)], who have higher education (primary aOR = 1.89, ; 95% CI 1.5-2.5 secondary aOR = 4.6; 95% CI 3.7-5.9), who were from rich households (aOR = 1.5; 95% CI 1.2-1.7), who had high autonomy (aOR = 1.29; 95% CI 1.02-1.64) were more likely to be aware compared to their counterparts about legislation of abortion. In the other hand, female from Dalit (aOR = 0.55; 95% CI 0.5-0.7 and Janajati aOR = 0.72; 95% CI 0.6-0.8) caste, who were married (aOR = 0.80; 95% CI 0.7-0.9), who were from Muslim (aOR = 0.54; 95% CI 0.3-0.9) and who resided in Hill (aOR = 0.63 ; 95% CI 0.5-0.8) and Terai/plain area (aOR = 0.74; 95% CI 0.6-0.9) were less likely to be aware about the law. Similarly, female youth who have knowledge on abortion law (aOR = 2.8; ; 95% CI 1.6-4.8), who have primary (aOR = 5.2; 95% CI 1.6-16.9) and secondary education (aOR = 3.8; 95% CI 1.2-12.8), married (aOR = 7.7; 95% CI 3.8-12.9), who had higher number of children ever born [1-2 children aOR = 1.9; 95% CI 1.1-3.6 and 3 or more children aOR = 3.4; 95% CI 1.1-10.9), who were from rich households (aOR = 2.62 ;95% CI 1.3-5.4), who have high autonomy (aOR = 3.0; 95% CI 1.6-5.8), who had experienced sexual violence (aOR = 1.91; 95% CI 1.1-8.7) were more likely to undergone abortion compared to their counterparts. CONCLUSION: Knowledge about legislation of abortion and conditions of abortion law is low among female youth. Awareness program should target these youth as they are more likely to be sexually active. There is a need of comprehensive education about abortion to these youth which can help eventually reduce unsafe abortion that take a large toll on women's life.

Socioeconomic status and fertility intentions among Chinese women with one child.

There has been a lack of socioeconomic status (SES) disparity analysis on women in China with only one child, the family planning target population. In 2008, the National Research Institute for Family Planning of China conducted a study investigating the relationship between SES and fertility intentions among 17,093 women in China who already had one child. A questionnaire was used to collect information on SES and fertility intentions, and logistic regression models were used to estimate the odds ratios and 95% CIs of fertility intentions according to SES. Compared with female farmers, women in other occupations intended to have fewer children (p < 0.05). Additionally, compared with women with low educational level (illiterate/primary), women with secondary and postsecondary education intended to have fewer children (p < 0.05) (OR = 0.70; 95% CI: 0.61-0.81 and OR = 0.56; 95% CI 0.47-0.66). A mother's education level was significantly and negatively associated with fertility intentions after adjustment for potential confounders (p < 0.05). Among Chinese women who had one child, the women with higher SES (e.g. higher educational level) had lower fertility intentions. There is an SES disparity in the fertility intention among Chinese women who already have one child. China's policy-makers should consider increasing high SES women's fertility intention.

Attitudes towards family formation in cohabiting and single childless women in their mid- to late thirties.

This study aimed to explore attitudes towards family formation in single or cohabiting childless women of advanced age. The design comprised semi-structured qualitative interviews of 20 women aged 34-39 years attending the Fertility Assessment and Counselling Clinic, Rigshospitalet, Copenhagen. A sample of 10 single women and 10 cohabiting women was chosen with equal distribution of postgraduate education length. Data were analysed using content analysis following the method of Graneheim and Lundman and consolidated criteria for reporting qualitative research (COREQ). The general attitude towards family formation was characterized by a fear of the consequences of choosing motherhood on one hand, and a 'ticking biological clock' and a wish to establish a nuclear family on the other. The women idealized the perception of perfect mothering in terms of uncompromising expectations of child rearing and showed an increasing awareness of solo motherhood as a possible solution to advanced age, the wish of a child and single status compared to earlier studies. Our study contributes to knowledge and understanding of personal considerations related to childbearing in nullipara women in their mid- to late 30s and may be useful in a fertility assessment and counselling setting.