Associations of age at first birth and lifetime parity with weight and adiposity across midlife in women from Project Viva.

ABSTRACT:

Objective

This study aimed to evaluate the associations of age at first birth and parity with weight, waist circumference (WC), and body fat across midlife.

Methods

A secondary data analysis was conducted with 735 participants from Project Viva who reported their age at first birth and lifetime parity at a midlife study visit. Weight, WC, and body fat were measured up to four times after the participants' final birth, and associations were examined using linear mixed-effects regression models.

Results

Participants' mean (SD) age was 32.6 (4.9) years at enrollment and 30.4 (5.5) years at their first birth, and they had 2.4 (0.9) lifetime births. In adjusted models, women who had their first birth at age <23 or ≥40 years, versus age 30 to 34 years, had a higher trajecto

SUBMITTER: Soria-Contreras DC 

PROVIDER: S-EPMC10524615 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature