Table A.1.
Unadjusted and adjusted odds (Models 1–3) of current long-acting reversible contraceptive use among US women aged 15–44, National Survey of Family Growth, 2011–2015 [2011–2013 and 2013–2015 pooled] (n=9321).
| Unadjusted Odds | Adjusted Odds | |||||||
|---|---|---|---|---|---|---|---|---|
| OR (95% CI) | Model 1: aOR (95% CI) | Model 2: aOR (95% CI) | Model 3: aOR (95% CI) | |||||
| Race | ||||||||
| Hispanic | 1.14 | (0.90, 1.45) | 1.31 | (1.03, 1.68) | 1.29 | (0.98, 1.70) | 1.18 | (0.90, 1.55) |
| Non-Hispanic White | Ref | Ref | Ref | Ref | ||||
| Non-Hispanic Black | 0.73 | (0.57, 0.94) | 0.85 | (0.64, 1.13) | 0.81 | (0.61, 1.08) | 0.67 | (0.49, 0.91) |
| Age (y) | ||||||||
| 15–19 | 0.14 | (0.08, 0.22) | 0.20 | (0.12, 0.34) | 0.21 | (0.12, 0.37) | 0.73 | (0.40, 1.33) |
| 20–24 | 0.82 | (0.62, 1.09) | 1.01 | (0.77, 1.33) | 1.01 | (0.77, 1.33) | 1.54 | (1.13, 2.10) |
| 25–34 | Ref | Ref | Ref | Ref | ||||
| 35–45 | 0.53 | (0.41, 0.69) | 0.51 | (0.39, 0.67) | 0.53 | (0.40, 0.69) | 0.43 | (0.32, 0.57) |
| Religion | ||||||||
| No religion | Ref | Ref | Ref | Ref | ||||
| Catholic | 0.90 | (0.66, 1.22) | 0.82 | (0.60, 1.14) | 0.83 | (0.61, 1.15) | 0.90 | (0.65, 1.23) |
| Protestant | 1.04 | (0.78, 1.40) | 1.10 | (0.80, 1.51) | 1.09 | (0.80, 1.49) | 1.06 | (0.78, 1.44) |
| Other religions | 1.47 | (0.98, 2.21) | 1.55 | (0.99, 2.41) | 1.54 | (0.99, 2.40) | 1.60 | (1.01, 2.55) |
| Marital status | ||||||||
| Married | 2.22 | (1.74, 2.83) | 1.92 | (1.46, 2.52) | 1.99 | (1.52, 2.61) | 1.31 | (0.97, 1.78) |
| Cohabitating | 2.46 | (1.88, 3.21) | 1.85 | (1.38, 2.47) | 1.84 | (1.38, 2.46) | 1.40 | (0.99, 1.98) |
| Neither married nor cohabiting | Ref | Ref | Ref | Ref | ||||
| Poverty level (% federal poverty level) | ||||||||
| Less than 100% | 1.09 | (0.84, 1.42) | 1.22 | (0.88, 1.70) | 1.03 | (0.72, 1.48) | ||
| 100–199% | 1.16 | (0.84, 1.59) | 1.24 | (0.90, 1.70) | 1.08 | (0.77, 1.50) | ||
| 200–299 | 1.32 | (1.00, 1.75) | 1.26 | (0.96, 1.66) | 1.18 | (0.87, 1.61) | ||
| 300 + % | Ref | Ref | Ref | |||||
| Education | ||||||||
| No high school degree | 0.57 | (0.40, 0.83) | 0.87 | (0.53, 1.43) | 0.64 | (0.39, 1.05) | ||
| High school degree | .88 | (0.64, 1.19) | 0.83 | (0.59, 1.17) | 0.57 | (0.40, 0.82) | ||
| Some college, no degree | 1.04 | (0.78, 1.40) | 1.02 | (0.75, 1.37) | 0.81 | (0.60, 1.10) | ||
| Associate’s degree | 1.30 | (0.89, 1.89) | 1.22 | (0.83, 1.79) | 1.01 | (0.66, 1.53) | ||
| Bachelor’s or higher | Ref | Ref | Ref | |||||
| Current health insurance | ||||||||
| Private | Ref | Ref | Ref | |||||
| Medicaid | 1.10 | (0.86, 1.41) | 1.24 | (0.92, 1.68) | 0.91 | (0.66, 1.25) | ||
| Other or none | 1.14 | (0.88, 1.48) | 1.02 | (0.77, 1.34) | 0.97 | (0.74, 1.28) | ||
| Parity | ||||||||
| No live births | Ref | Ref | ||||||
| 1 or 2 | 4.73 | (3.64, 6.15) | 3.64 | (2.54, 5.21) | ||||
| 3 or more | 2.74 | (1.99, 3.76) | 2.27 | (1.42, 3.62) | ||||
| Intention for (future) children | ||||||||
| Intends/doesn’t know | Ref | Ref | ||||||
| Does not intend | 1.32 | (1.08, 1.63) | 1.09 | (0.83, 1.43) | ||||
| Number partners in past year | ||||||||
| 0 | 0.23 | (0.15, 0.34) | 0.54 | (0.34, 0.85) | ||||
| 1 | Ref | Ref | ||||||
| 2 | 0.96 | (0.63, 1.45) | 1.25 | (0.80, 1.94) | ||||
| 3 or more | 0.93 | (0.64, 1.34) | 1.35 | (0.88, 2.08) | ||||
| Ever experienced unintended pregnancy | ||||||||
| No | Ref | Ref | ||||||
| Yes | 2.76 | (2.15, 3.53) | 1.84 | (1.37, 2.46) | ||||
| NSFG survey year | ||||||||
| 2011–2013 | Ref | Ref | ||||||
| 2013–2015 | 1.20 | (0.95, 1.50) | 1.21 | (0.95, 1.55) | ||||
Note: OR = odds ratio; SE = standard error; CI = confidence interval. Results are weighted to reflect the U.S. female civilian population. The first column shows unadjusted odds. In adjusted models, Model 1 included demographic characteristics (age, religion, and marital status); Model 2 added socioeconomic characteristics (poverty, education, and health insurance); and Model 3 added reproductive health characteristics (parity, age at sexual debut, intent for (future) children, number of partners in the past year, and experience of unintended (mistimed or unwanted) pregnancy. “Private” health insurance includes private insurance and Medi-Gap; “Medicaid” includes Medicaid, CHIP, or a state-sponsored health plan; “other or none” includes Medicare, military health care, other government health care, single-service plan only, Indian Health Service only, and not currently covered by health insurance.