Family reconstitution has provided knowledge about the reproductive performance of mates from La Cabrera (northwest Spain). The analysis of 2293 reconstituted families (7872 births corresponding to parities 2 to 10) was restricted to the period 1880 to 1929. The proportion of infant deaths (younger than 1 year) was calculated regarding the preceding birth interval and the death or survival of t...

This article examines the birth/baptism interval in 68 Anglican parishes. It provides a continuous annual record from 1646 to 1917 thereby augmenting previous studies in which periods such as the 1640s, the mid-eighteenth and late-nineteenth centuries have been sparsely represented. During the seventeenth century intervals remained stable, but afterwards they increased with many parishes experi...

Birth interval is one of the major determinants of the fertility rate. In this paper structural change approach is used to study the instabilities in the effects of different socio-economic factors on birth intervals of children with respect to couple's years of marriage factor in Ahvaz-Iran. A class of M-fluctuation tests for parameter instability is used and based on these tests different evi...

BACKGROUND Recent steep declines in child mortality have been attributed in part to increased use of contraceptives and the resulting change in fertility behaviour, including an increase in the time between births. Previous observational studies have documented strong associations between short birth spacing and an increase in the risk of neonatal, infant, and under-five mortality, compared to ...

BACKGROUND In recent years, particularly in developed countries, women have tended to delay childbirth until over 40 years of age. Our study aims to identify whether the donor's age or recipient's age influences the pregnancy and live birth rate following oocyte recipient cycles. METHODS A population study included 3889 fresh oocyte recipient cycles. Pregnancy and live delivery rates were com...

STUDY OBJECTIVE To examine the effect of a comprehensive prenatal and delivery programme administered by nurse-midwives on the risk of low weight births among indigent women. STUDY DESIGN Historical prospective study. Birth outcomes among the cohort were compared with all county births during the same period, adjusting for maternal age and race. Results are expressed as relative risks with 95...

OBJECTIVE To compare the effects on pregnancy outcomes of changing partner between the first two births with having the same partner for both births. DESIGN Prospective population study. SETTING Norway. PARTICIPANTS 31 683 women who changed partner between their first two births and 456 458 women with the same partner for both births. RESULTS After adjustment for maternal age and educat...