Table 5. Intervention Dose Effect on Infant Activitya.
| Number of Interventi on NPSG At tended | ||||
|---|---|---|---|---|
| Infant Activity | 0 | 1 | 2 | p-value |
| Tummy time ever (%) | 78.6 | 85.1 | 93.4 | .004 |
| Tummy time on floor (%) | 23.7 | 37.3 | 56.0 | <.001 |
| Unrestrained floor time (%) | 28.5 | 34.8 | 54.4 | <.001 |
Chi square analyses were performed to determine the percentage of mothers performing each physical activity based on the number of Nutrition and Parenting Support Groups (NPSG) they attended. Prior to the 3-month old assessment, mother-infant dyads could have attended 0, 1 or 2 NPSG sessions.