Table 3.
Main and Interaction Effects of the Nursing Quality Improvement (NQI) and Mobile Health (mHealth) Interventions for Breastfeeding (BF) and Safe Sleep (SS)
| During Past 2 wk |
At Infant Age =60 d, No./Total (%)
|
Adjusted Risk for NQI Only, %a
|
P Valuec |
Adjusted Risk for mHealth Only, %
|
P Valuec |
P for Inter- actiond |
Adjusted Risk for mHealth and NQI, %
|
P Valuec |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BF NQI and mHealth |
SS NQI and BF mHealth |
BF NQI and SS mHealth |
SS NQI and mHealth |
Intervention | Control | Difference (95% CI)b |
Intervention | Control | Difference (95% CI)b |
Intervention | Control | Difference (95% CI)b |
|||||
| Supine Sleep Position | |||||||||||||||||
|
| |||||||||||||||||
| Main effect | 243/303 (80.2) | 230/301 (76.4) | 294/333 (88.3) | 294/318 (92.5) | 82.8 | 80.2 | 2.6 (−3.1 to 7.2) | .34 | 89.1 | 80.2 | 8.9 (5.3 to 11.7) | <.001 | |||||
|
| |||||||||||||||||
| Interaction | 78.5 | 80.2 | −1.7 (−10.1 to 4.7) | .74 | 85.2 | 80.2 | 5.0 (1.5 to 8.0) | .02 | .01 | 89.6 | 80.2 | 9.4 (2.9 to 13.6) | .03 | ||||
|
| |||||||||||||||||
| Room Sharing Without Bed Sharing | |||||||||||||||||
|
| |||||||||||||||||
| Main effect | 205/291 (70.4) | 218/293 (74.4) | 262/328 (79.9) | 269/313 (85.9) | 74.1 | 70.4 | 3.7 (−0.4 to 7.2) | .22 | 82.8 | 70.4 | 12.4 (9.3 to 15.1) | <.001 | .08 | ||||
|
| |||||||||||||||||
| No Soft Bedding Usee | |||||||||||||||||
|
| |||||||||||||||||
| Main effect | 202/299 (67.6) | 204/300 (68.0) | 259/333 (77.8) | 262/320 (81.9) | 70.9 | 67.6 | 3.3 (−1.4 to 7.8) | .33 | 79.4 | 67.6 | 11.8 (8.1 to 15.2) | <.001 | .29 | ||||
|
| |||||||||||||||||
| Any Pacifier Usef | |||||||||||||||||
|
| |||||||||||||||||
| Main effect | 174/291 (59.8) | 193/290 (66.6) | 226/326 (69.3) | 240/315 (76.2) | 66.6 | 59.8 | 6.8 (1.4 to 11.9) | .07 | 68.5 | 59.8 | 8.7 (3.9 to 13.1) | <.001 | .54 | ||||
Adjusted for infant age at survey and sex, and mother’s age, parity, race, educational level, marital status, household income, and SAFE outcome rate (by hospital; rates from SAFE study17 not available for soft bedding use).
Calculated from odds ratios and 95% CIs from logistic regression.
Calculated from logistic regression adjusted for multiple outcome measures using the Hochberg method.
Calculated from test for multiplicative interaction in the logistic regression model.
Defined as nonuse of a heavy blanket or quilt or comforter, rug, stuffed toys, cushion or pillow, adult sleeping bag, cloth diaper or towel, pad on top of sheet, bumpers, and sleep positioners or wedges.
Includes responses of “usually use pacifier” and “sometimes use pacifier.”