نتایج جستجو برای: sex life table
تعداد نتایج: 1037095 فیلتر نتایج به سال:
Skewed sex ratios - operational (OSR) and Adult (ASR) - arise from sexual differences in reproductive behaviours and adult survival rates due to the cost of reproduction. However, skewed sex-ratio at birth, sex-biased dispersal and immigration, and sexual differences in juvenile mortality may also contribute. We present a framework to decompose the roles of demographic traits on sex ratios usin...
BACKGROUND Health expectancies, taking into account both quality and quantity of life, have generally been based on disability and physical functioning. AIMS To compare mental health expectancies at age 25 and 55 based on common mental disorders both across countries and between males and females. METHOD Mental health expectancies were calculated by combining mortality data from population ...
BACKGROUND This study examined gender differences in healthy life expectancy (HLE) and unhealthy life expectancy (UHLE) among people aged 60 years or older living in a large Brazilian city. METHODS Based on Chiang method, abridged life tables were constructed for men and for women. To calculate HLE, the Sullivan method was applied. Estimates of the prevalence of self-rated health and self-rep...
The demographic characteristics of Helicoverpa armigera (Hübner) reared on hybrid sweet corn (Zea mays L. variety saccharata) (hybrid super sweet corn KY bright jean) and on an artificial diet were compared by using the age-stage, two-sex life table. Because the hatch rate of eggs varies with maternal age, age-specific fecundity was calculated based on the numbers of hatched eggs to reveal the ...
Background and aims: Life expectancy is one of the most important indicators of health and well-being of a society. Since it is claimed that in Aran-Bidgol region, center of Iran, life expectancy is higher than the average of the country, this study was designed. Methods: During a cross-sectional study, population and mortality data of Kashan University o...
the study of cognition and attitudes toward family life and sex, particularly among the young population, is one of the important areas of health behavior. this study attempts to find the degree of knowledge and attitudes of the female students of teheran university. the findings reveal that although the girls under the study expressed some attitudes towards family life not common in the tradit...
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