Sex Ratio of Stillbirths related to Birth Weight

an observational analysis of secondary sex ratio, stillbirth and birth weight in iranian buffaloes (bubalus bubalis)

calving records of iranian buffaloes from april 1991 to june 2010 comprising 1,151 herds with 34,911 calving events were used to evaluate reported secondary sex ratio, stillbirth, and calf birth weight. logistic regression models were applied to analyze stillbirth and calf sex at birth, and statistical analysis of calf birth weight was performed using a linear mixed model. overall, the ratio of...

The prevalence and related factors of low birth weight

Background and aims:The most common reason in neonatal mortality rate in the world is low birth weight (LBW). The objective of our study was to determine the prevalence and related factors associated in birth weight in Garmsar, Iran in 2013. Methods: This cross sectional study was carried out on 683 live births which delivered in Garmsar in 2013. The requ...

Sex ratio at birth and latitude.

Mother's occupation and sex ratio at birth

BACKGROUND Many women are working outside of the home, occupying a multitude of jobs with varying degrees of responsibilities and levels of psychological stress. We investigated whether different job types in women are associated with child sex at birth, with the hypothesis that women in job types, which are categorized as "high psychological stress" jobs, would be more likely to give birth to ...

Placenta praevia and sex ratio at birth.

The ratio of male to female sex among infants born to 391 women with and 114 079 without placenta praevia was analysed by parity. In the women without placenta praevia the sex ratio decreased significantly with increasing parity, whereas in the women with placenta praevia it increased. Overall, the sex ratio was increased among the women with placenta praevia, particularly multiparas. An increa...