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Comparison of the total infant night sleep duration (minutes) between actigraphy and parental diary data.
| Collection period | Actigraphy | Diary | t-test |
|---|---|---|---|
| Mean (SD) | Mean (SD) | ||
| Baseline | 565.65 (52.58) | 591.28 (57.11) | t (185) = 9.46** |
| 6 weeks | 580.17 (51.44) | 620.64 (54.80) | t (158) = 13.34** |
| 24 weeks | 587.82 (47.15) | 624.87 (51.89) | t (114) = 13.48** |
SD, standard deviation.
**p < 0.001.
