BACKGROUND Owing to the emergence of some challenges in the demographic structure of many countries and possible decrease in young human workforce in the future decades, the reduction in the fertility rate has become a major public concern. This study aimed to investigate the effects of climatic factors on fertility. AIM In this correlational study conducted during 2005-2009, the relationship...

Male infertility is an urgent medical and demographic threat worldwide, in particular industrial regions suffering from environmental pollution. Here we performed analysis of epidemiological studies meta-analyses prevalence, causes, risk factors male reproductive disorders. Among the well-defined determining are hormonal imbalance, sexually transmitted infections, other inflammatory diseases, h...

OBJECTIVE The aim of this study was to investigate practice behaviours of Swedish physicians with regard to discussing the impact of cancer treatment on fertility with paediatric oncology patients and their parents, and to identify factors associated with such discussions. METHODS A cross-sectional survey study was conducted targeting all physicians in Sweden working in paediatric oncology ca...

Background: Regarding this, the present study was conducted to identify the effective factors on sleep satisfaction and chronobiology among rural adults. Materials and Methods: This cross-sectional study was conducted on 385 adults how living in 31 rural areas of Fariman city, Iran, selected through stratified sampling technique. The sample size was calculated using a conservative approach with...

Fertility rates vary across countries. Pooled data on more than 100 countries over the period 1955-85 are used to estimate a model of fertility behavior. The author found the impact of socioeconomic factors to differ across different age cohorts such that the negative impact of improvements in female status upon fertility rates is higher among the younger age cohorts. Cross-country differenc...

Using West German panel data constructed from the 1988 and 1994/95 wave of the DJI Familiensurvey, we analyze the stability and determinants of individuals’ total desired fertility. We find considerable variation of total desired fertility across respondents and across interviews. In particular, up to 50% of individuals report a different total desired fertility across survey waves. Multivariat...

This paper relates national fertility rates to political factors. I first review evidence that community norms affect fertility, ethnic groups compete politically in many countries, and a group’s relative size affects its ability to compete. This evidence jointly suggests that population growth and fertility may be public goods at the ethnic group level in diverse societies. Next, I present a s...

BACKGROUND Extensive research in both developed and developing countries has shown that preferences and intentions for future childbearing predict behavior. However, very little of this research has examined high-fertility contexts in sub-Saharan Africa. In particular, the factors that increase or decrease correspondence between fertility desires and behavior in these settings are not well unde...