Table 3.

Odds ratios and 95% confidence intervals of the association between select demographic and lifestyle characteristics and weekly sexual intercourse

Characteristic	OR	95% CI
Age
< 25	1.00	Referent
25–34	1.39	0.78, 2.46
≥ 35	0.93	0.46, 1.87
Marital status
Married	4.55	2.55, 8.10
Living with partner	6.59	2.57, 16.91
Separated, divorced, or widowed	0.52	0.15, 1.81
Single	1.00	Referent
Educational level
High school or less	2.64	1.40, 5.01
Some college	1.33	0.72, 2.47
College graduate or more	1.00	Referent
Income
≤ $30,000	1.21	0.65, 2.24
$30,001–$45,000	0.98	0.45, 2.13
> $45,000	1.00	Referent
Number in household
1 person	0.26	0.10, 0.64
2 people	0.68	0.39, 1.20
≥ 3 people	1.00	Referent
Race/ethnicity
Hispanic	4.42	1.44, 13.56
Non-Hispanic white	1.00	Referent
Non-Hispanic black	0.84	0.47, 1.51
Other	0.51	0.18, 1.45
Alcohol consumption
Yes	0.80	0.48, 1.33
No	1.00	Referent
Smoking
Yes	2.14	0.93, 4.91
No	1.00	Referent
Parity
0	1.00	Referent
1	1.26	0.68, 2.32
≥ 2	3.53	1.89, 6.60
Using OCs to prevent pregnancy
Yes	5.00	2.27, 11.11
No	1.00	Referent
Using OCs to lessen cramps
Yes	0.47	0.28, 0.80
No	1.00	Referent
Using OCs to regulate cycles
Yes	0.88	0.53, 1.47
No	1.00	Referent
BMIa
< 25.0	1.00	Referent
25.0–29.9	1.99	0.95, 4.14
≥ 30.0	1.16	0.66, 2.04
WHRb
< 0.85	1.00	Referent
≥ 0.85	1.66	0.93, 2.95

^aBMI = Body mass index. BMI calculated as kg/m².

^bWHR=Waist-to-hip ratio. WHR calculated as waist circumference divided by hip circumference.