TABLE 2.
Regression Model Results
| Infant Outcome | PEP | RSA | Object Engagement | Negativity | |||||
|---|---|---|---|---|---|---|---|---|---|
| Model Type | |||||||||
| Model 1 | Model 2 | Model 1 | Model 2 | Model 1 | Model 2 | Model 1 | Model 2 | ||
| Intercept/Play | B | 75.872 *** | 75.452 *** | 4.245 *** | 4.352 *** | −0.282 * | −0.554 ** | −5.757 *** | −5.000 *** |
| SE | 0.66 | 0.81 | 0.13 | 0.15 | 0.12 | 0.17 | 0.33 | 0.48 | |
| SF 1 | B | −0.181 | 0.260 | −0.231 | −0.222 | 0.361 *** | 0.296 *** | 3.203 *** | 3.079 *** |
| SE | 0.27 | 0.33 | 0.12 | 0.15 | 0.03 | 0.04 | 0.06 | 0.08 | |
| Reunion 1 | B | −1.161 *** | −1.066 ** | −0.345 * | −0.398 * | −0.473 *** | −0.753 *** | 2.840 *** | 2.693 *** |
| SE | 0.31 | 0.37 | 0.15 | 0.18 | 0.03 | 0.04 | 0.07 | 0.08 | |
| SF 2 | B | −1.102 ** | −1.161 * | −0.722 *** | −0.905 *** | −0.173 *** | −0.446 *** | 5.286 *** | 5.132 *** |
| SE | 0.40 | 0.48 | 0.18 | 0.22 | 0.03 | 0.04 | 0.07 | 0.09 | |
| Reunion 2 | B | −1.021 * | −1.220 * | −0.278 | −0.295 | −1.073 *** | −1.357 *** | 4.766 *** | 4.439 *** |
| SE | 0.42 | 0.51 | 0.15 | 0.18 | 0.03 | 0.05 | 0.07 | 0.09 | |
| Group | B | — | −0.194 | — | −0.441 | — | 0.420 | — | −1.474 |
| SE | — | 1.66 | — | 0.31 | — | 0.28 | — | 0.79 | |
| GW (covariate) | B | — | −0.294 | — | −0.026 | — | −0.018 | — | 0.011 |
| SE | — | 0.19 | — | 0.04 | — | 0.03 | — | 0.09 | |
| SF1 by group | B | — | −1.391 * | — | −0.042 | — | 0.115 * | — | 0.328 ** |
| SE | — | 0.58 | — | 0.27 | — | 0.05 | — | 0.12 | |
| Reunion 1 by group | B | — | −0.242 | — | 0.173 | — | 0.510 *** | — | 0.403 ** |
| SE | — | 0.67 | — | −0.32 | — | 0.06 | — | 0.14 | |
| SF2 by group | B | — | 0.208 | — | 0.460 | — | 0.493 *** | — | 0.417 ** |
| SE | — | 0.86 | — | 0.39 | — | 0.06 | — | 0.14 | |
| Reunion 2 by group | B | — | 0.653 | — | 0.059 | — | 0.496 *** | — | 0.784 *** |
| SE | — | 0.91 | — | 0.32 | — | 0.07 | — | 0.14 | |
Model 1: main effects only; model 2: main effects and interaction effects. Group: 0 = treatment-as-usual, 1 = intervention/Mindful Moms Training. For model 1 columns, B coefficients provide intercept as overall sample level during baseline episode and coefficient of change-from-baseline for each subsequent still face episode. For model 2 columns, interaction effects provide baseline difference between treatment-as-usual and intervention groups and intervention group difference-in-difference for each still face episode.
PEP = preejection period; RSA = respiratory sinus arrhythmia; SF = still face; SE = standard error; GW = gestational weeks at enrollment, centered around treatment-as-usual group mean.
* p < .05.
** p < .01.
*** p < .001.