BACKGROUND OBJECTIVE To compare the risk of placenta previa at second birth among women who had a cesarean section (CS) at first birth with women who delivered vaginally. METHODS Retrospective cohort study of 399,674 women who gave birth to a singleton first and second baby between April 2000 and February 2009 in England. Multiple logistic regression was used to adjust the estimates for ma...

The mean age at natural menopause and its determinants among Shirazi women (southern Iran) was calculated.  The data were obtained from a population- based cross-sectional study carried out in the year 2000.  Interviews were carried out and observations made on 948 women who had incurred natural menopause. They were randomly chosen using postal zones housing sample framework of Shiraz.Mean±SD a...

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: First birth is an important phenomenon in women life. It not only affects the duration of rest intervals but also reproductive pattern women. The study aims to explore determinants first interval. Subjects dan Method: cross-sectional data 33,275 married between years 2005-2021 aged (15-49) from Uttar Pradesh, were selected NFHS-5 data. sample a stratified two-stage sample. Socio-dem...