Objectives-This report presents preliminary data for 2012 on births in the United States. U.S. data on births are shown by age, live-birth order, race, and Hispanic origin of mother. Data on marital status, cesarean delivery, preterm births, and low birthweight are also presented. Methods-Data in this report are based on 99.96% of 2012 births.Records for the few states with less than 100% of re...

BACKGROUND Some scholars claim that marriage is an outmoded institution, decoupled from the childbearing process in Sweden. However, it is likely that the presence of children is still linked to marriage, since most children born to cohabiting couples experience the marriage of their parents. The temporal ordering of childbearing and marriage may be informative as to the meaning of marriage. OB...

Time and environmental physical activity are involved in timing of many medical events. In a recent study published by the National Academy of Science, USA it was shown that month of birth is related to longevity. The aim of this study was to check the month of birth distribution in a great group of AMI patients of both gender, one of the great killers in the developed countries, to check the m...

Data from the 1985 Spanish Survey of Fertility including 8789 women aged 18-49 years is used to examine the timing of 1st births from marriage. Premarital births are excluded. Life table estimates are used to describe trends and differentials. A piecewise constant hazard model, which assumes a constant transition rate within each duration segment (0-7, 8-12, 13-18, 19-24, 25-36, and 37-48 mo...

background: the timing of maternal weight change in pregnancy may be an important determinant of birth weight. the objective of this study was to measure weight gain patterns from early pregnancy until delivery, and to examine the relationship between prenatal weight gain and low birth weight.   methods: a total of 500 pregnant women within 15-20 days of conception, with confirmed pregnancies a...

Background & aim: Based on the current scientific evidence, delayed cord clamping (DCC) elevates early hemoglobin concentrations and iron stores in the neonate. However, the persistent practice of early cord clamping (ECC) is still a routine care. The aim of the present study was to investigate the umbilical cord clamping practices of maternity care providers in Oman. Methods: This cross-sectio...

OBJECTIVE To assess whether, in girls with early onset of puberty, low birth weight is a risk factor for rapid progression to menarche and for short adult stature. DESIGN Longitudinal clinical assessment of 54 Catalan (Northern Spanish) girls followed from early onset of puberty (onset of breast development between 8.0 and 9.0 years of age) to final height. The timing of menarche and the fina...