Variation in reproductive lifespan and female fertility have implications for health, population
size and ageing. Fertility declines well before general signs of menopause and is also …

© 2021, Smith, Mineau This open-access work is licensed under a Creative Commons
Attribution 4.0 International License, which permits use, reproduction & distribution in any …

Background Twinning in humans occurs at low but variable rates within and among
populations worldwide 1, 2. Dizygotic (DZ) twinning rates are heritable 3 and increase with …

Multiple births strain mothers' and families' resources in ways that should highlight
preferences for family size, birth spacing, and parity-dependent stop** behavior. Couples …

Reproductive lives of men and women may provide significant insight into later-life morbidity
and mortality. Sociological, biological, and evolutionary theories predict a relationship …

Historically, mothers producing twins gave birth, on average, more often than non-twinners.
This observation has been interpreted as twinners having higher intrinsic fertility–a tendency …

The present study investigates the twinning rates in the city of São Paulo, Brazil, during the
years 2003–2014. The data were drawn from the Brazilian Health Department database of …

STUDY QUESTION Do the mothers of twins and singletons differ regarding post-partum and
old-age mortality? SUMMARY ANSWER Twin deliveries were associated with higher post …

Der vorliegende Beitrag gibt einen detaillierten Überblick über die Auswirkungen
verschiedener Familienbildungsprozesse wie Geburt, Heirat, Scheidung und Verwitwung …

Background Multifetal gestation could be associated with higher long‐term maternal
mortality because it increases the risk of pregnancy complications such as preeclampsia …