Table 1.
Characteristics of sexually active women ages 15–44 using at least two methods at last sex in the past three months in the NSFG between 2008 (N = 6601) and 2015 (N = 5562)
| 2008 (N = 6601) | 2015 (N = 5562) | ||
|---|---|---|---|
| % | % | p-value | |
| Overall | 13.8% | 17.8% | < 0.001 |
| N | 6601 | 5562 | |
| Age | |||
| 15–19 y | 31.5% | 41.2% | 0.03 |
| 20–24 y | 23.2% | 29.4% | 0.05 |
| 25–29 y | 12.7% | 17.2% | 0.03 |
| 30–34 y | 11.4% | 12.5% | 0.62 |
| 35–39 y | 9.0% | 10.1% | 0.56 |
| 40–44 y | 6.9% | 11.9% | 0.01 |
| Race/Ethnicity | |||
| White, NH | 14.5% | 19.5% | 0.00 |
| Black, NH | 15.4% | 19.3% | 0.07 |
| Other/Multiple, NH | 14.6% | 15.6% | 0.78 |
| Hispanic | 9.7% | 13.3% | 0.05 |
| Federal poverty level | |||
| 0–99% | 15.3% | 19.0% | 0.07 |
| 100–199% | 15.1% | 16.7% | 0.49 |
| 200–299% | 12.3% | 19.1% | 0.00 |
| 300%+ | 13.2% | 17.1% | 0.03 |
| Nativity status | |||
| US born | 14.8% | 19.0% | p < 0.001 |
| Foreign born | 8.7% | 11.8% | 0.16 |
| Relationship status | |||
| Married | 7.1% | 9.1% | 0.11 |
| Cohabitating | 12.9% | 14.0% | 0.63 |
| Not married or cohabitating | 25.3% | 32.5% | 0.00 |
| Educational attainment | |||
| Not HS grad | 13.1% | 19.6% | 0.01 |
| HS grad/GED | 13.1% | 13.9% | 0.72 |
| Some college | 15.6% | 21.7% | 0.00 |
| College grad | 13.0% | 16.0% | 0.10 |
| Current insurance coverage | |||
| Private | 14.7% | 18.5% | 0.01 |
| Medicaid | 15.5% | 15.7% | 0.95 |
| Other public | 13.0% | 25.0% | 0.04 |
| None | 10.2% | 15.5% | 0.02 |
| Parity | |||
| 0 | 22.8% | 29.0% | 0.01 |
| 1–2 | 9.5% | 12.4% | 0.04 |
| 3 or more | 9.1% | 10.4% | 0.46 |
| Number of future births expected | |||
| 0 | 9.5% | 12.6% | 0.01 |
| 1–2 | 17.4% | 22.7% | 0.01 |
| 3 or more | 28.6% | 32.1% | 0.45 |
| Any same sex sexual contact | |||
| Never had same sex sexual contact | NA | 17.4% | |
| Has had same sex sexual contact | NA | 20.1% | |
| Received STI test or treatmenta | |||
| No STI test or treatment | NA | 14.5% | |
| Received STI test or treatment | NA | 24.2% | |
| Had sex with non-monogamous partnera | |||
| No sex with non-monogamous partner | NA | 16.7% | |
| Had sex with non-monogamous partner | NA | 27.0% |
Notes: Population includes female respondents who had sex in the past 3 months, used at least one contraceptive method at last sex, and were 15–44 years old. Survey years in column headings represent the midpoint of data collection years for each of the 2 time periods covered by the NSFG surveys. Data are all%. Population weighted to reflect the US female civilian population of the United States. Logistic regression models were used to test for significant differences in the proportion of dual method users between time periods.
NA, not applicable.
In the 12 months prior to interview.