Table 3b.
Comparisons of mealtimes among chronotypes and daily conditions (workdays, free days, preferred schedules).
| First eating event |
p-value | Lunch |
p-value | Last eating event |
p-value | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| workdays (n = 988) | free days (n = 1297) | preferred (n = 1295) | workdays (n = 980) | free days (n = 1292) | preferred (n = 1296) | workdays (n = 989) | free days (n = 1264) | preferred (n = 1293) | ||||
| Overall sample | 8:25 ± 1:39 | 9:45 ± 1:41 | 9:05 ± 1:31 | <0.001 | 13:24 ± 0:53 | 13:21 ± 0:48 | 13:10 ± 0:47 | <0.001 | 21:01 ± 1:21 | 21:10 ± 1:34 | 21:22 ± 1:30 | <0.001 |
| MT | 7:53 ± 1:46 | 8:41 ± 1:35 | 8:18 ± 1:25 | <0.001 | 13:20 ± 0:50 | 13:11 ± 0:41 | 13:02 ± 0:44 | <0.001 | 20:34 ± 0:57 | 20:34 ± 1:12 | 20:42 ± 1:05 | <0.001 |
| NT | 8:26 ± 01:31 | 9:48 ± 1:28 | 9:06 ± 1:24 | <0.001 | 13:24 ± 0:52 | 13:22 ± 0:45 | 13:08 ± 0:39 | <0.001 | 21:00 ± 1:17 | 21:10 ± 1:27 | 21:20 ± 1:25 | <0.001 |
| ET | 9:09 ± 1:53 | 11:07 ± 1:48 | 10:12 ± 1:36 | <0.001 | 13:32 ± 1:00 | 13:35 ± 1:04 | 13:32 ± 1:13 | <0.001 | 21:45 ± 1:50 | 22:10 ± 2:02 | 22:31 ± 1:52 | <0.001 |
| (df) p-value | (2) <0.001 | (2) <0.001 | (2) <0.001 | (2) 0.230 | (2) <0.001 | (2) <0.001 | (2) <0.001 | (2) <0.001 | (2) <0.001 | |||
MT: morning type; NT: neither (intermediate) type; ET: evening type.
Kruskal-Wallis test was used for comparisons among chronotypes, and Friedman test for comparisons of meal timings across the 3 different conditions (during workdays, during free days and preferred schedules).