. Author manuscript; available in PMC: 2012 Apr 1.

Published in final edited form as: Obstet Gynecol. 2011 Apr;117(4):793–797. doi: 10.1097/AOG.0b013e31820f387c

Table 3. Repeated measures analysis of covariance^a modeling the association between early weight gain^b and percentage change in body mass index (BMI) after 12 and 18 months of DMPA use.

Factor	P-value	Mean (SD)

Early Weight Gain	<0.001	No vs. Yes
Early Weight Gain		3.7% (0.9%) vs. 14.7% (1.9%)

Visit Month	0.03	12 vs. 18
Visit Month		7.3% (1.2%) vs. 11.0% (1.5%)

Eligible co-variables included age, gynecologic age, race, ethnicity, BMI, menstrual regularity, duration of menses, menstrual cycle length, sexual activity, previous pregnancy, physical activity, randomization to estradiol or placebo, and time by group interaction.

Early weight gain defined as: No = gained ≤ 5% of baseline weight at 6 months of DMPA use; Yes = gained > 5% of baseline weight at 6 months of DMPA use.

Table 3. Repeated measures analysis of covariancea modeling the association between early weight gainb and percentage change in body mass index (BMI) after 12 and 18 months of DMPA use.

Table 3. Repeated measures analysis of covariance^a modeling the association between early weight gain^b and percentage change in body mass index (BMI) after 12 and 18 months of DMPA use.