OBJECTIVE To establish a method of estimating the proportion of women with a subsequent live birth after a well-defined time period in an open cohort of women referred to a tertiary recurrent miscarriage clinic. METHODS We performed a descriptive cohort study with register-based follow-up at a tertiary center for investigation and treatment of recurrent miscarriage in Denmark. All women with ...

CONTEXT Though contraceptive failure and induced abortion in China have both attracted research attention, the somewhat broader topic of unintended pregnancy has been neglected. METHODS A total of 7,872 newly married couples, enrolled between 1987 and 1988, were followed up until 1994-1995; only 2% were lost to follow-up. During face-to-face interviews, background and fertility-related data w...

North Atlantic right whales (NARW) are critically endangered and have been declining in abundance since 2011. In the past decade, human-caused mortalities from vessel strikes entanglements increasing, while birth rates population at a 40 yr low. addition to abundance, recent studies shown that NARW length-at-age is decreasing due energetic impacts of sub-lethal entanglements, body condition poo...

BACKGROUND Short birth intervals are known to have negative effects on pregnancy outcomes. We analysed data from a large population surveillance system in rural Bangladesh to identify predictors of short birth interval and determine consequences of short intervals on pregnancy outcomes. METHODS The study was conducted in three districts of Bangladesh - Bogra, Moulavibazar and Faridpur (popula...

OBJECTIVE This study assessed the influence of socioeconomic position at 12 years of age (SEP-12) on the variability in cesarean rates later in life. METHODS As part of the Portuguese Generation XXI birth cohort we evaluated 7358 women with a singleton pregnancy who delivered at five Portuguese public hospitals serving the region of Porto (April/2005-September/2006). Based on the twelve items...

OBJECTIVE We aimed to determine the timing and size of the cognitive deficit associated with poverty in the first 5 years of life and to examine the role of parental characteristics, pre- and postnatal growth, and stimulation in the home in Bangladeshi children. We hypothesized that the effect of poverty on cognition begins in infancy and is mainly mediated by these factors. METHODS We enroll...

Dynamic panel data model of infant deaths, birth spacing and contraception are estimated incorporating causal effects of birth spacing on subsequent mortality and of mortality on the use of contraceptives and the length of next birth interval. Data come from the renowned demographic field Health and Demographic Surveillance System in the icddr,b treatment area in Matlab, Bangladesh, on 31,968 c...

‎we consider a linear programming problem in a general form and suppose that all coefficients may vary in some prescribed intervals‎. ‎contrary to classical models‎, ‎where parameters can attain any value from the interval domains independently‎, ‎we study problems with linear dependencies between the parameters‎. ‎we present a class of problems that are easily solved by reduction to the classi...

Inheritance of economic traits was studied in Nili-Ravi dairy buffaloes through analysis of data comprising 5037 records of daughters of 79 sires. Data were collected from three large-sized state dairy farms. Heritability, genetic and phenotypic correlations of some indicator traits on important production and reproduction traits were worked out. Based upon analysis of records for first lactati...