TABLE 4.
Multivariate Analysis of Factors Associated with Intentions and Practice
| Variablesa | n | All Positions Reported as Intended to Be Used (N = 3297)b | aORc Intend Only Supine, Practice Other (95% CI) | aORc Intend Side or Side and Supine (95% CI) | aORc Intend include Prone (95% CI) | |||
|---|---|---|---|---|---|---|---|---|
| % Intend Only Supine, Practice Only Supine | % Intend Only Supine, Practice Other | % Intend Side or Side and Supine | % Intend Includes Prone | |||||
| n = 1379 (43.7%) | n = 432 (13.9%) | n = 891 (26.1%) | n = 548 (14.9%) | |||||
| Maternal race | ||||||||
| White | 1275 | 51.2 | 15.9 | 18.8 | 12.5 | Ref | Ref | Ref |
| African American | 828 | 32.4 | 10.7 | 29.0 | 26.5 | 1.2 (0.83–1.71) | 1.7 (1.23–2.43) | 2.5 (1.57–3.85) |
| Hispanic | 912 | 33.9 | 11.6 | 39.1 | 14.7 | 1.5 (0.95–2.21) | 2.2 (1.42–3.28) | 1.5 (0.80–2.65) |
| Other | 281 | 43.9 | 13.5 | 27.4 | 13.0 | 1.0 (0.56–1.67) | 1.6 (0.74–3.34) | 1.4 (0.58–3.30) |
| Maternal age (y) | ||||||||
| 14–19 | 275 | 36.3 | 14.9 | 30.5 | 16.9 | 1.8 (0.81–4.17) | 1.2 (0.53–2.87) | 1.0 (0.42–2.62) |
| 20–24 | 795 | 37.7 | 13 | 31.2 | 17.2 | 1.6 (0.96–2.67) | 1.7 (0.97–3.17) | 1.4 (0.87–2.33) |
| 25–29 | 993 | 45.7 | 13.1 | 24.0 | 15.9 | Ref | Ref | Ref |
| 30–34 | 777 | 49.5 | 12.5 | 23.9 | 12.0 | 0.8 (0.52–1.10) | 1.0 (0.68–1.51) | 0.7 (0.37–1.35) |
| ≥35 | 457 | 42.8 | 18.8 | 24.0 | 13.3 | 1.2 (0.89–1.60) | 0.7 (0.38–1.19) | 0.7 (0.35–1.39) |
| Education | ||||||||
| <HS | 478 | 28 | 9.2 | 40.9 | 19.6 | 1.4 (0.78–2.47) | 1.7 (0.92–3.09) | 2.1 (1.16–3.73) |
| HS or GED | 833 | 41.5 | 10.5 | 30.5 | 16.7 | Ref | Ref | Ref |
| Some college | 1041 | 45.7 | 14.4 | 24.5 | 13.8 | 1.4 (0.99–1.88) | 1.1 (0.75–1.57) | 0.7 (0.42–1.31) |
| College grad | 624 | 49.4 | 15.7 | 19.0 | 14.7 | 1.6 (0.91–2.94) | 1.2 (0.69–2.02) | 1.2 (0.60–2.60) |
| Grad school | 308 | 49.6 | 22.0 | 18.0 | 9.1 | 3.0 (1.46–6.26) | 1.8 (0.87–3.92) | 1.2 (0.42–3.54) |
| Perceived control | ||||||||
| Up to mother | 3034 | 43.6 | 13.7 | 26.3 | 15.1 | Ref | Ref | Ref |
| Not up to mother | 254 | 44.8 | 16.4 | 24.6 | 12.5 | 1.0 (0.67–1.64) | 1.3 (0.60–2.81) | 3.5 (1.70–7.25) |
| Subjective norms | ||||||||
| Only supine | 1589 | 71.7 | 17.3 | 7.9 | 2.7 | Ref | Ref | Ref |
| Side or side and supine | 772 | 12.0 | 8.9 | 69.7 | 8.9 | 1.3 (0.84–2.11) | 9.0 (5.15–13.1) | 6.2 (3.39–11.2) |
| Any prone | 520 | 11.6 | 6.8 | 26.6 | 53.5 | 0.9 (0.50–1.58) | 4.0 (2.34–6.85) | 11.6 (7.24–18.7) |
| No positive | 255 | 27.4 | 14.7 | 24.2 | 25.2 | 1.6 (0.88–2.99) | 3.3 (1.87–5.81) | 5.4 (2.93–10.1) |
| Positive attitudes | ||||||||
| Only supine | 1474 | 79.4 | 14.2 | 4.5 | 1.6 | Ref | Ref | Ref |
| Side or side and supine | 1046 | 14.1 | 15.3 | 62.8 | 6.6 | 5.4 (3.63–7.96) | 26.3 (18.1–38.2) | 8.3 (5.24–13.3) |
| Any prone | 604 | 6.4 | 9.0 | 23.6 | 58.2 | 7.3 (3.84–13.8) | 29.6 (17.0–51.7) | 130 (71.8–236) |
| No positive | 56 | 36.9 | 11.5 | 10.3 | 29.3 | 1.3 (0.42–4.21) | 3.8 (0.96–15.0) | 18.2 (5.30–52.8) |
| Doctor advice | ||||||||
| Advice consistent with recommendation | 1773 | 62.5 | 16.2 | 12.9 | 7.7 | 0.8 (0.53–1.11) | 0.5 (0.36–0.67) | 0.6 (0.39–0.93) |
| No advice | 660 | 33.5 | 14.2 | 31.3 | 18.2 | Ref | Ref | Ref |
| Advice not consistent with recommendation | 819 | 8.8 | 7.9 | 53.5 | 28.5 | 1.3 (0.57–3.00) | 1.9 (1.07–3.32) | 2.6 (1.52–4.47) |
N = 47 mothers with no intended position included in the analysis but not included in the table because of small sample size. GED, general education development; HS, high school; Ref, reference.
a
In addition to all variables in the table the model adjusted for: maternal parity and marital status and infant sex, age, and birth weight categories.
b
The numbers associated with the demographics do not always add up to 3297 because of some missing data.
c
All aORs are compared with Intend Only Supine, Practice Only Supine group.