Contraception
Volume 81, Issue 2 , Pages 107-111, February 2010

Variations in body mass index of users of depot-medroxyprogesterone acetate as a contraceptive

Human Reproduction Unit, Department of Obstetrics and Gynecology, School of Medical Sciences, University of Campinas (UNICAMP), and National Institute of Hormones and Women Health, Campinas, SP 13084-971, Brazil

Received 24 June 2009; received in revised form 14 July 2009; accepted 20 July 2009. published online 03 December 2009.

Abstract 

Background

Weight gain is a frequent reason for discontinuing the contraceptive with depot-medroxyprogesterone acetate (DMPA).

Study Design

This 3-year retrospective cohort study assessed body mass index (BMI; kg/m2) variations in 379 current or past DMPA users compared to TCu380A intrauterine device (IUD) users matched for age and BMI, categorized into G1 (normal weight), G2 (overweight) or G3 (obese) according to baseline BMI. Variations in weight and BMI were evaluated using analysis of variance.

Results

BMI increased progressively in all groups but significantly more in G1 and G2 DMPA users compared to nonusers and according to duration of use. In the G3 subgroup, weight trends were similar in the DMPA and IUD users.

Conclusions

Normal and overweight women increased BMI with DMPA use; however, obese women did not increase weight. Weight increase in DMPA users could be associated with metabolic alterations related to duration of use in normal and overweight women and to alterations already present in obese women. Prospective studies are required to determine triggering factors. DMPA use ≤3 years was not associated with weight increase in women with BMI (kg/m2) ≥30.

Keywords: Depot-medroxyprogesterone acetate, contraception, Weight, Obesity

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PII: S0010-7824(09)00353-9

doi:10.1016/j.contraception.2009.07.008

Contraception
Volume 81, Issue 2 , Pages 107-111, February 2010

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