نتایج جستجو برای: pregnancy rates
تعداد نتایج: 564660 فیلتر نتایج به سال:
During spring, summer and winter seasons, Sistani donor cows, with normal reproductive status, were superovulated and embryos were recovered non-surgically on day 7. Grade A blastocyst embryos were either transferred fresh (spring) or frozen (summer and winter). Recovered embryos during summer and winter were exposed to glycerol and frozen using conventional method. During spring season, recipi...
Background: Considering the psycho-social model of diseases, the aim of this study was to evaluate the effect of psychiatric intervention on the pregnancy rate of infertile couples.Methods: In a randomized clinical trial, 638 infertile patients referred to a university infertility clinic were evaluated. Among them, 140 couples with different levels of depression in at least one of the spouses w...
OBJECTIVES This report presents detailed pregnancy rates for 1990-99. Rates for 1991-97 are revised using populations consistent with the April 1, 2000, census; the revised populations are also used for the new 1998-99 rates. METHODS Tabular and graphic data on pregnancy rates by age, race, and Hispanic origin, and by marital status are presented and described. RESULTS In 1999, an estimated...
OBJECTIVE To describe weekly admission rates for affective and non-affective psychosis, major depression and other psychiatric disorders in the early and late postpartum periods. To assess the impact of socioeconomic status, age and parity on admission rates. METHODS Scottish maternity records were linked to psychiatric hospital admissions. 3290 pregnancy-related psychiatric admissions were a...
Left Truncation Bias as a Potential Explanation for the Protective Effect of Smoking on Preeclampsia
BACKGROUND We carried out a study to examine whether left truncation bias could explain the negative association between smoking and preeclampsia. METHODS Monte Carlo and other simulation models were used to determine the effect of differential rates of early pregnancy loss among smokers on the relation between smoking and preeclampsia at ≥20 weeks' gestation. Assumptions included no associat...
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