نتایج جستجو برای: first birth interval
تعداد نتایج: 1695990 فیلتر نتایج به سال:
BACKGROUND Longer intervals between consecutive births decrease the number of children a woman can have. This results in beneficial effects on population size and on the health status of mothers and children. Therefore, understanding the practice of birth interval and its determinants is helpful to design evidence based strategies for interventions. The objective of this study was to determine ...
OBJECTIVE To compare the effects on pregnancy outcomes of changing partner between the first two births with having the same partner for both births. DESIGN Prospective population study. SETTING Norway. PARTICIPANTS 31 683 women who changed partner between their first two births and 456 458 women with the same partner for both births. RESULTS After adjustment for maternal age and educat...
BACKGROUND The length of the interval between age at menarche and age at first birth is positively associated with breast cancer risk. We examined the risk of breast cancer in atomic bomb survivors to investigate whether women exposed to radiation between menarche and first birth had a higher risk of radiogenic breast cancer than women exposed at the same age but outside this interval. METHOD...
بر اساس پخش و پراکندگی چینه شناسی روزنبران پلانکتونیک شناسایی شده از برش مورد پژوهش 9 بیوزون شناسایی و معرفی شد که منطبق با بایوزون های استاندارد جهانی در قلمرو تتیس بوده و به ترتیب ازپایین به بالا شامل : بیوزون 1)dicarinella concavata interval zone (سانتونین پسین) بیوزون 2) dicarinella asymetrica total range zone ( کامپانین میانی) بیوزون 3) globotruncanita elevata interval zone ( کامپانین پ...
Maternal Risk Factors Affecting Low Birth Weight in Rafsanjan Township in 2018: A Case Control Study
Background and Objectives: Low birth weight is one of the most widespread public health problems associated with high infant mortality. This study aimed to identify maternal risk factors affecting low birth weight neonates in Rafsanjan hospitals. Materials and Methods: This case-control study consisted of 120 low birth weight infants (less than 2500 grams) as the case group and 120 normal weig...
In this study the relation between maternal age, spacing number of pregnancies and birth weight and height was evaluated 1000 newborns in Fatemeh hospital in Hamedan. The growth parameters of newborns from mothers aged 18-35 years, were more than newborns from mothers under 18 or over 35 years. Also infants born from mothers, how had less than 24 months interval between pregnancies weight less...
Fetal growth or gestational age in a woman's pregnancies may modify pregnancy-related breast cancer risk, yet studies of these exposures are few. The authors conducted a population-based case-control study among parous Michigan women aged ≤50 years using linked Michigan Cancer Registry (1985-2004) and Michigan livebirth records (1978-2004). Breast cancer cases (n = 7,591) were matched 1:4 to co...
Background: The aim of this retrospective study is to investigate the cumulative live birth rate (CLBR) following one or more completed in vitro fertilization (IVF) cycles (up to 6 cycles) stratified by maternal age and type of infertility. Materials and Methods: In this retrospective study, five hundred forty-seven women who received 736 fresh ovarian stimulation/embryo transfer cycles between...
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