نتایج جستجو برای: first birth interval
تعداد نتایج: 1695990 فیلتر نتایج به سال:
BACKGROUND In case of preterm birth in twins, it is not well established if the second twin benefits from a delayed-interval delivery. OBJECTIVE The main objective of this systematic review is to evaluate survival benefit of the second twin from delayed interval delivery compared to the first twin. Secondly, we will evaluate the survival benefit of the procedure when performed equal to or aft...
OBJECTIVE We seek to expand on a biopsychosocial framework underlying the etiology of excess preterm birth experienced by African-American women by exploring short inter-pregnancy intervals as a partial explanatory factor. DESIGN We conducted a qualitative analyses of published studies that met specified criteria for assessing the association of inter-pregnancy interval and preterm birth. M...
CONTEXT Epilepsy during pregnancy is a therapeutic challenge. Since the 1990s, the number of licensed antiepileptic drugs has substantially increased, but safety data on first-trimester use of newer-generation antiepileptic drugs and birth defects are limited. OBJECTIVE To study the association between fetal exposure to newer-generation antiepileptic drugs during the first trimester of pregna...
the ovine melatonin receptor 1a (mtnr1a) and aromatase (cyp19) genes were structurally characterized and the association between their variants and reproductive and growth traits was studied in kurdi sheep at kurdi sheep breeding station located in shirvan, iran. the genomic dna was extracted by guanidine thiocyanate-silica gel method. polymerase chain reaction was carried out to amplify 824 bp...
background: around one out of two mothers give births by cesarean section (cs) surgery in iran and about half of this number is due to previous cs. recently health sector evolution (hsep) program (started in april 2014) targets the high rate of cs in iran. to assess the impact of the interventions, we emphasized that the first birth cesarean (fbc) proportion is one of the main indicators to ass...
OBJECTIVE To re-evaluate the causal effect of interpregnancy interval on adverse birth outcomes, on the basis that previous studies relying on between mother comparisons may have inadequately adjusted for confounding by maternal risk factors. DESIGN Retrospective cohort study using conditional logistic regression (matching two intervals per mother so each mother acts as her own control) to mo...
Congenital retardation of renal development may increase the risk of renal disease, and this risk may be enhanced by diseases, such as diabetes, that damage the kidney. In this study, the prevalence of urinary albumin excretion, determined in 308 Pima Indians with type 2 diabetes, was 63% in subjects with low birth weight (<2,500 g), 41% in those with normal birth weight (2,500-4,499 g), and 64...
background and objectives: several investigations have been done to evaluate the effect of ramadan fasting on fetal and maternal health, which have all led to controversial results. the role of ramadan fasting time in birth weight is still unclear. this study evaluated the effect of fasting at different periods of pregnancy on birth weight. methods: 250 pregnant women fasting at least one day d...
OBJECTIVE To test a multifaceted collaborative quality improvement intervention designed to promote evidence based surfactant treatment for preterm infants of 23-29 weeks' gestation. DESIGN Cluster randomised controlled trial. SETTING AND PARTICIPANTS 114 neonatal intensive care units (which treated 6039 infants of 23-29 weeks gestation born in 2001). MAIN OUTCOME MEASURES Process of care...
Maternal concentrations of insulin-like growth factor I (IGF-I) and insulin-like growth factor binding protein 1 (IGFBP-1) may influence fetal growth. Offspring birth weight related to maternal IGF-I and IGFBP-1 measured in pregnancy was studied in 368 randomly selected women without preeclampsia who delivered a singleton liveborn child in Norway between 1992 and 1994. Maternal IGF-I concentrat...
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