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Comparison of the longest infant sleep duration (minutes) between actigraphy and parental diary data.
| Collection period | Actigraphy | Diary | t-test |
|---|---|---|---|
| Mean (SD) | Mean (SD) | ||
| Baseline | 166.92 (50.52) | 256.41 (87.56) | t (186) = 14.71** |
| 6 weeks | 198.33 (73.07) | 368.84 (131.55) | t (158) = 7.94** |
| 24 weeks | 241.63 (89.83) | 455.23 (134.14) | t (114) = 17.18** |
SD, standard deviation.
**p < 0.001.
