نتایج جستجو برای: first birth intervals
تعداد نتایج: 1675314 فیلتر نتایج به سال:
the researchers aim was to find out the potential effects of some maternal factors such as age, educational level, occupation as well as children’s birth order on the communicative performance of preschoolers in iran. this study was conducted with 31 preschoolers selected from bahar language institute in shiraz, iran. the required data about mothers and children were gathered through a question...
Background and objectives: There is growing interest in assessing gene-environment interaction in the course of case-control studies. Difficulties related to the sampling of controls have led to the development of a range of non-traditional methods that do not require controls for estimating gene-environment interaction. One of these new modalities is the case-only approach, in which the asse...
Starting Age and Subsequent Birth Intervals in Cohabitational Unions in Current Danish Cohorts, 1975
OBJECTIVES This study examines the influence of socioeconomic circumstances in childhood (childhood SES) and adulthood (adult SES) on timing of first birth by age 37. METHODS A longitudinal study of a 1972-1973 New Zealand birth cohort collected information on socioeconomic characteristics from age 3-32 and reproductive histories at 21, 26, 32 and 38; information on first birth was available ...
BACKGROUND Thermal care is an important element of Baby Friendly Hospital. AIM The objective of this study was to determine the prevalence of neonatal hypothermia and associated risk factors in healthy full term newborns at a Baby Friendly Hospital. SUBJECTS AND METHODS A cross-sectional, descriptive study was conducted on consecutively healthy full term neonates recruited during a 1 year. ...
Effect of different parities on reproductive performance, birth intervals, and tail behavior in sows
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