نتایج جستجو برای: after 1980 birth cohort
تعداد نتایج: 1933903 فیلتر نتایج به سال:
PURPOSE Two common approaches to identify subgroups of patients with bipolar disorder are clustering methodology (mixture analysis) based on the age of onset, and a birth cohort analysis. This study investigates if a birth cohort effect will influence the results of clustering on the age of onset, using a large, international database. METHODS The database includes 4037 patients with a diagno...
The main objective of this study was to investigate whether the sex ratio at birth (SRB, male proportion) alter in Iraq during its war against Iran (1980-1988). Here we compared 785 births (348 males, 437 females) during 1980-1989 with 1144 births (655 males, 489 females) before 1980 and 2914 births (1496 males, 1418 females) after 1989 in Fallujah, Iraq. The SRB significantly decreased during ...
OBJECTIVE To examine trends and characteristics of home vaginal birth after cesarean delivery (VBAC) in the United States and selected states from 1990-2008. METHODS Birth certificate data were used to track trends in home and hospital VBACs from 1990-2008. Data on planned home VBAC were analyzed by sociodemographic and medical characteristics for the 25 states reporting this information in 2...
OBJECTIVE Men who have sex with men (MSM) and heterosexuals are the populations with the fastest growing HIV infection rates in China. We characterize the epidemic growth and age patterns between these two routes from 2004 to 2015 in Chongqing and Shenzhen, China. DESIGN AND METHODS Data were downloaded from the National HIV/ AIDS Comprehensive Response Information Management System. For the ...
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...
BACKGROUND Maternal cervical incompetence in pregnancy (CIP) showed an association with a higher rate of preterm births. The objective of this study was to determine the prevalence of CIP in Hungarian pregnant women, to determine the rate of preterm birth, and to check the preventive efficacy of preterm births due to CIP by therapeutic cerclage or bed rest alone. METHODS Analysis of the popul...
conclusions information gained misleadingly and fears related to vaginal delivery were seen as factors affecting women’s preferences for delivery. thus, midwives are required to train both pregnant women during antenatal care and all women in society about methods of delivery and to give effective counseling. results mean age rate of participants was 39.8 ± 11.8 years. the most significant reas...
BACKGROUND The global pattern of male predominance in gastric cancer incidence remains unexplained. We tested the hypothesis that estrogen prevents gastric cancer in a cohort of men heavily exposed to estrogen. METHODS We conducted a nationwide cohort study of men with a diagnosis of prostate cancer recorded in the Swedish Cancer Register in 1961-2000. Because estrogen therapy was the treatme...
BACKGROUND France has the second highest number of variant Creutzfeldt-Jakob disease (vCJD) cases worldwide. Imports of bovine carcasses from the UK probably constituted the main source of exposure of the French population to the bovine spongiform encephalopathy (BSE) agent. Meat products consumed whilst visiting the UK have also been considered as a possible source of exposure. METHODS We es...
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