255557 Types of combined oral contraceptives used by U.S. women, including women with risk of venous thromboembolism

Monday, October 29, 2012

Kelli Hall, PhD, MSN, NP , Office of Population Research; Center for Health and Wellbeing, Princeton University, Princeton, NJ
James Trussell, PhD , Office of Population Research, Princeton University, Princeton, NJ
Objective: To estimate the prevalence of types of combined oral contraceptive (COC) use among women in the United States.

Methods: We analyzed data from 12,279 women ages 15-44 years in the population-based reproductive health study, the National Survey of Family Growth. Data were collected continuously via in-person, computerized household interviews from 2006-2010. We focused on items pertaining to OC use at the time of interview. Analyses described proportions of women using COCs overall, by type (brand, dosage, generation, phase, regimen), across sociodemographic groups and among women with cardiovascular risks.

Results: Seventeen percent of women used COCs including 25% of those at risk of unintended pregnancy. COC use among women with cardiovascular risks ranged from 5% to 13%. COC users reported 88 different pill brands. More women used COCs with ≥30mcg versus <30mcg ethinyl estradiol (67% vs. 33%; 2% used 50mcg), monophasic versus multiphasic dosages (67% vs. 33%) and 21/7 versus extended cycle regimens (88% vs.12%); similar proportions used 1st (22%) and 2nd (19%) versus 3rd (41%) generation progestins. Factors associated with type of COC use included age, education, BMI, diabetic and gynecological histories, reasons for COC use and type of medical practice where COCs were received.

Conclusion: Although many modern COCs designed to improve method safety, tolerability and effectiveness are available in the U.S., women more commonly use earlier pill formulations. Further investigation of factors influencing women's use of types of COCs and their impact on adverse events, contraceptive behavior and unintended pregnancy rates at the population level is needed.

Learning Areas:
Public health or related research
Social and behavioral sciences

Learning Objectives:
Describe current use of combined oral contraceptives by type of pill among women in the United States. Assess factors associated with women's use of types of combined oral contraceptives.

Keywords: Contraceptives, Women's Health

Presenting author's disclosure statement:

Qualified on the content I am responsible for because: I am a contraceptive research fellow and have conducted this research, involved in all phases. I am also a family planning health provider.
Any relevant financial relationships? No

I agree to comply with the American Public Health Association Conflict of Interest and Commercial Support Guidelines, and to disclose to the participants any off-label or experimental uses of a commercial product or service discussed in my presentation.

Back to: 3198.0: PRSH Posters: Contraception