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Percentage of Infants in Each of the Four Awakening Types by Age Group
| Age Group (mo) | Type 1 (No Voc, No Intervention) | Type 2 (Voc, No Intervention) | Type 3 (Voc, Intervention) | Type 4 (No Voc, Intervention) |
|---|---|---|---|---|
| 3 | 0.0 | 17.4 | 65.2 | 17.4 |
| 6 | 9.5 | 52.4 | 23.8 | 14.3 |
| 9 | 0.0 | 61.1 | 27.8 | 11.1 |
| 12 | 0.0 | 50.0 | 27.8 | 22.2 |
| Overall age | 2.5 | 43.8 | 37.5 | 16.3 |
Voc, vocalization.
