TABLE 1.

Sample characteristics, women 18–50 years old: Massachusetts, Behavioral Risk Factor Surveillance System, 2006, 2008, and 2010 (n = 4930)

Variable	Na	%a
Age, y
18–24	374	10.2
24–34	1201	25.5
35–39	945	21.1
40–44	1034	24.8
45–50	1376	18.3
Married
Yes	2595	64.3
No	2308	35.7
Education, y
≤12	1526	25.0
>12	3386	75.0
Race/ethnicity
White, non-Hispanic	3553	80.4
Other	1342	19.6
Smokerb
Yes	1033	16.7
No	3877	83.3
Ever diagnosed with diabetes mellitus or cardiovascular medical conditionc
Yes	291	4.6
No	4621	95.4

^aNumbers based on unweighted sample. Percentages based on weighted sample. Percentages calculated excluding observations with missing values;

^bHas smoked at least 100 cigarettes in lifetime and is now smoking regularly;

^cIncludes heart attack, angina, coronary health disease, or stroke.

Godfrey et al. Contraceptive use among women ≥45 years old. Am J Obstet Gynecol 2016.