Mothers Twins Live Longer - A new study based on Mothers Twins Live Longer finds women may naturally live longer and have other child-bearing advantages. However, before assuming that having twins gives women a health advantage, researchers believe the reverse might be true, that being healthier could give mothers a better chance of having them. The study used statistics on 58,786 women who were born between 1807 and 1899 — a group that didn’t have fertility treatments or artificial birth control at their disposal.
The women also lived to at least 50 years old, and were married once after 1850 to men who were alive when their wives were 50. Of those women, 4,603 had twins and 54,183 did not. Women in polygamous marriages were not included.
The data came from the Utah Population Database. For the study women were divided into two categories: those born before 1870 and those born from 1870 to 1899, to distinguish, as the authors wrote, “the natural fertility era from the early stages of fertility planning.”
Researchers from the University of Utah in Salt Lake City discovered that twin-bearing mothers lived longer after menopause — women born before 1870 had a 7.6 percent lower mortality risk after 50 compared with non-twin-bearing moms (twin-bearing moms born between 1870 and 1899 had a lower risk also but it was not significant).
Mothers of twins had more children overall compared with non-twin-bearing moms by virtue of their multiple births, but they also had more single children than moms of single babies.
Twin-bearing moms also had slightly shorter time spans between having children. Among all women in the study, the average time between births was 2.62 years for women born pre-1870, and 3.24 years for women born between 1870 and 1899. Having twins cut the intervals by two weeks.
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