Table 1.
Outcome Measures | Daytime Mean (SD) | Delayed Mean (SD) | P-value |
---|---|---|---|
Timed Eating Compliance | |||
# Meals or snacks/day | 4.6 (0.6) | 4.6 (0.6) | 0.91 |
# Eating episodes out of range* (per 8-week condition) | 5.4 (5.9) | 2.2 (2.8) | 0.052 |
# Eating episodes with non-study food items consumed | 8.0 (5.5) | 8.8 (7.8) | 0.60 |
Calories provided (kcals) | 2018.8 (289.1) | 2001.6 (288.3) | 0.88 |
Calories consumed/kg (kcals) | 1998.7 (359.9) | 2005.1 (347.1) | 0.97 |
Physical Activity Compliance | |||
Minutes/day (self-report) | 20.0 (13.6) | 24.9 (13.9) | 0.056 |
Total activity counts/day (actigraphy) | 250,664.8 (66,777.1) | 267,566.9 (93,149.5) | 0.17 |
Actigraphic Sleep Compliance | |||
Sleep duration (h) | 7.7 (0.6) | 7.5 (0.6) | 0.09 |
Sleep onset (hh:mm; h) | 23:58 (0.7) | 24:23 (0.9) | 0.04 |
Sleep offset (hh:mm; h) | 07:40 (0.9) | 07:54 (1.0) | 0.14 |
Sleep midpoint (hh:mm; h) | 03:49 (0.7) | 04:09 (0.9) | 0.07 |
Sleep onset latency (min) | 28.9 (15.0) | 25.5 (14.4) | 0.30 |
Sleep efficiency (%) | 83.0 (3.9) | 83.2 (4.6) | 0.80 |
Wake after sleep onset (min) | 38.7 (15.2) | 39.7 (15.2) | 0.41 |
Note: Paired t-tests compared compliance data.
A mean (SD) of 5.3 (5.8) episodes of the out of range eating during the 8-week daytime condition occurred after 1900h; a mean (SD) of 1.5 (2.0) episodes of the out of range eating during the 8-week delayed condition occurred before 1200h. See also Figure S1.