background: low birth weight (lbw) is one of the major determinants of neonatal survival as well as postnatal morbidity. objective: the main objective of the present study was to determine neonatal mortality rate (nmr) in lbw infants in yazd, iran. materials and methods: in a prospective-cohort study, all births in the maternity hospitals of yazd, iran in 2004 were evaluated and mortality rate ...

the aim of this study was to analyze the effect of sex, season and year of birth on growth rate of biometric measurements and body weight gain of thoroughbred foals during first six months of life. 103 thoroughbred foals (53 colts and 50 fillies) from golejewko stud born between 2006 and 2008, were used in this study. thoroughbred foals born in winter months were characterized by significantly ...

When twinning rates are studied, maternal age and parity should be considered. Data on parity are seldom available. We studied information about the mean parity, using the gross reproduction rate, the total fertility rate and the crude birth rate. These are strongly correlated with the mean parity. The crude birth rate is more readily available than the gross reproduction rate or the total fert...

To obtain the low birth weight (LBW) rate, the very low birth weight (VLBW) rate, and gestational age (GA)-specific birth weight distribution based on a large population in Korea, we collected and analyzed the birth data of 108,486 live births with GA greater than 23 weeks for 1 yr from 1 January to 31 December 2001, from 75 hospitals and clinics located in Korea. These data included birth weig...

birth and death indicators were examined through retrospective surveys conducted in 1985 and 1987 in the islamic republic of lran, reviewing 1984 and 1986 events, to obtain infant mortality rate (imr) and other necessary indicators for health planning and evaluation. comparison between 1985 and 1987 surveys revealed: 1. no major change in crude death rate ( 6.3 per 1000 in 1987 survey) had occu...