TABLE 2.
Circadian and sleep phenotypes.
| T2D (n = 14) | T2D MT2 (n = 14) | |
| Twenty-four-hour sleep duration (h) | 8.06 (0.96) | 7.40 (1.53) |
| Main episode sleep duration (h) | 7.90 (1.12) | 7.31 (1.53) |
| Sleep onseta | 23:23 (00:55) | 00:29 (01:24) |
| Sleep offseta | 07:17 (01:10) | 07:47 (01:37) |
| Midsleepa | 03:20 (00:56) | 04:08 (01:11) |
| Sleep Regularity Index | 75.3 (8.46) | 67.5 (10.4) |
| Composite phase deviation | 1.11 (0.35) | 2.06 (1.29) |
| Fasting duration (h) | 12.3 (1.01) | 12.2 (1.31) |
| First caloric intakea | 08:01 (00:59) | 08:16 (00:58) |
| Last caloric intakea | 19:42 (00:27) | 20:06 (00:49) |
| Midpoint caloric intake windowa | 13:54 (00:35) | 14:12 (00:36) |
| Caloric intake timing CPD | 0.65 (0.58) | 1.03 (0.70) |
| First caloric intake to average sleep offset CPD | 1.27 (1.00) | 2.15 (1.47) |
| Last caloric intake to average sleep onset CPD | 3.82 (1.12) | 4.60 (1.21) |
| Δ first caloric intake to sleep offset (h) | 0.81 (0.901) | 1.20 (1.46) |
| Δ last caloric intake to sleep onset (h) | 3.65 (1.07) | 4.34 (1.26) |
| Caloric intake frequency | 3.61 (0.53) | 4.75 (1.37) |
| Snacks intake frequency | 0.55 (0.58) | 0.53 (0.52) |
Data are displayed as means (± SD). SD, standard deviation; T2D, Type 2 diabetic control patients; T2D MT2, T2D patients with rare MT2 receptor variants. aMilitary time.