. Author manuscript; available in PMC: 2010 Aug 1.

Published in final edited form as: Obstet Gynecol. 2009 Aug;114(2 Pt 1):279–284. doi: 10.1097/AOG.0b013e3181af68b2

Table 2.

Association of weight gain status with changes in body weight over 36 months based on mixed model regression analysis

	Coefficient	95% Confidence Interval	P
Baseline weight	−0.018	−0.054 to 0.019	<.339
Weight gain status (1, >5% ; 0, ≤ 5%)	7.030	5.513 to 8.541	<.001
Age (1, 16–24 y; 2, 25–33 y)¹	−0.129	−1.806 to 1.547	.880
Race²
Black	0.565	−1.078 to 2.207	.500
Hispanic	0.194	−1.345 to 1.733	.805
Duration of DMPA use (mo)	0.135	0.106 to 0.164	<.001
Weight bearing exercise (min/week)	−0.001	−0.004 to 0.002	.495
Parity	−0.239	−0.966 to 0.487	.519
Previous use of DMPA (mo)	−0.002	−0.037 to 0.032	.891
Constant	0.256	−3.045 to 3.557	.879

Dependent variable: change in body weight over 36 months

Reference group: 16–24-year-olds

Reference category: White