Effect of older maternal age on the risk of spontaneous preterm labor: a population-based study.

Full Abstract

To determine if older maternal age (35 years and older) at first birth was an independent risk factor for spontaneous preterm labor, we conducted a retrospective population-based cohort study. Using provincial perinatal data, we developed separate risk models for low- and high-risk women using multivariate logistic regression. We found that older maternal age exerted a direct and independent effect on spontaneous preterm labor for both nulliparous women with no preexisting chronic illnesses or pregnancy complications (low-risk) and nulliparous women who did not have any preexisting chronic illnesses, but developed one or more pregnancy complications (high-risk).

Author information

Author/s: McIntyre, Safina Hassan (SH); Newburn-Cook, Christine V (CV); O'Brien, Beverley (B); Demianczuk, Nestor N (NN);

Affiliation: Faculty of Nursing, University of Alberta, Edmonton, Alberta, Canada.

Journal and publication information

Publication Type: Journal Article; Research Support, Non-U.S. Gov't

Journal: Health care for women international (Health Care Women Int), published in United States. (Language: eng)

Reference: 2009-Aug; vol 30 (issue 8) : pp 670-89

Dates: Created 2009/07/03; Completed 2009/09/17;

PMID: 19575320, status: MEDLINE (last retrieval date: 9/17/2009, IMS Date: )

Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.

Comments and Corrections

CommentIn: Health Care Women Int. 2009 Aug;30(8):669. (PMID: 19575319)

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