background and aims: human parvovirus b19 may transmit to the fetus via the placenta during pregnancy and cause serious complications such as severe fetal anemia, non-immune hydrops fetalis, and even intrauterine fetal death. the aim of this study was to determine the seroprevalence of parvovirus b19 antibodies among young women, sanandaj, iran. materials and methods: ninety young women (15-40 ...

UNLABELLED BACKGROUND Although obesity is a risk factor for many chronic diseases, we have only limited knowledge of the magnitude of these associations in young adults. A multiethnic cohort of young adults was established to close current knowledge gaps; cohort demographics, cohort retention, and the potential influence of migration bias were investigated. METHODS For this population-base...

OBJECTIVES Little is known about influences of sample selection on estimation in propensity score matching. The purpose of the study was to assess potential selection bias using one-to-one greedy matching versus optimal full matching as part of an evaluation of supportive housing in New York City (NYC). STUDY DESIGN AND SETTINGS Data came from administrative data for 2 groups of applicants wh...

The relation between mortality of young fish and recruitment is important for assessment of the environmental effects of facilities that kill large numbers of young fish, such as electric power stations and hydropower plants. A simulation model with a bioenergetic growth component was applied to examine the relation between mortality of young and recruitment for walleye (Stizostedion vitreum) w...

The purpose of this study was to investigate the effect of satellite networks (GEM TV and Farsi 1) on the religious beliefs of youth in the city of Farashband. The type of research in terms of purpose, applied and in terms of data collection, was causal-comparative. The statistical population of this study is all the youths of the Farashband city in 2015, which includes 7569 people. The sample ...

INTRODUCTION The study described the effectiveness of a voucher scheme to access sexual and reproductive health and HIV services among young MSM and transgender people aged 15-24 years in Dhaka, Bangladesh, a country with HIV prevalence of less than 0.1%. METHODS Descriptive and analytical methods were used to assess the net effects of biodemographic factors of the respondents on the voucher ...

OBJECTIVE To determine if there are differences in young people's responsiveness to price and tobacco control policies for population subgroups and to examine whether or not these differences, if they exist, can explain sex and racial differences in trends in the prevalence of smoking in young people in the United States. DESIGN Use cross-sectional and intertemporal variation in local and sta...

background: pregnancy prevention is an important factor in women's life changing in various periods. selection of contraception method is personally unique and can bridge between their experiences and their unmet needs. the aim of this study was to determine contraception experiences in the first years of marriage. methods: this was a qualitative phenomenological study. the studied population w...

objective of this study was determining of the hamadanian young couples about family size, sex ratio and birth order of their asked children. the population of this study was the young men and women that were imminent of marriage, refereed to marriage offices as well as hygienic and therapeutic centres in hamadan city. this was a cross sectional descriptive study and has been done by using ques...