Birth records from Swiss married couples analyzed over the past 35 years reveal an aging of first-time mothers by 5.1 years while the interpregnancy interval has shortened.

Abstract:

:Although the general trend for delaying childbearing is generally viewed as causing infertility, its consequences on the interpregnancy interval have been unknown. A study of birth records for Swiss married women from 1969 to 2006 revealed that the woman's age at first birth has increased from 25.0 to 30.1 years, whereas calculated theoretical interpregnancy intervals after the first and second child decreased from 23.2 to 13 and from 22.4 to 7.9 months, respectively.

journal_name

Fertil Steril

journal_title

Fertility and sterility

authors

Kalberer U,Baud D,Fontanet A,Hohlfeld P,de Ziegler D

doi

10.1016/j.fertnstert.2009.05.078

subject

Has Abstract

pub_date

2009-12-01 00:00:00

pages

2072-3

issue

6

eissn

0015-0282

issn

1556-5653

pii

S0015-0282(09)01229-1

journal_volume

92

pub_type

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