Table 1.
Participant characteristics of the overall, training and test datasets.
| Overall data set | Training set | Test set | p | |
|---|---|---|---|---|
| N | 154 | 77 | 77 | |
| Sex n (%) | 70 M (45.5), 84 F (54.5) | 31 M (40.3), 46 F (59.7) | 39 M (50.6), 38 F (49.4) | 0.20 |
| Age (y) M ± SD | 30.1 ± 10.7 | 29.6 ± 11.4 | 30.5 ± 10.1 | 0.61 |
| BMI (kg/m2) M ± SD | 24.5 ± 4.0 | 23.8 ± 3.6 | 25.3 ± 4.2 | 0.02 |
| DLMO time (hh:mm), M ± SD | 22:07 ± 1:26 | 22:11 ± 1:22 | 22:04 ± 1:31 | 0.61 |
| DBT-DLMO PAD (h), M ± SD | − 0:19 ± 1:17 | − 0:11 ± 1:15 | − 0:25 ± 1:18 | 0.28 |
| Bedtime (hh:mm), M ± SD* | 0:41 ± 1:19 | 0:41 ± 1:13 | 0:40 ± 1:24 | 0.94 |
| Wake time (h:mm), M ± SD* | 8:46 ± 1:21 | 8:49 ± 1:17 | 8:42 ± 1:26 | 0.71 |
| CGI˄ | ||||
| Mildly ill | 74 (48.7) | 31 (40.8) | 43 (56.6) | 0.05 |
| Moderately-severely ill | 78 (51.3) | 45 (59.2) | 33 (43.4) | |
| cMEQ | ||||
| Moderately evening | 23 (14.9) | 8 (10.4) | 15 (19.5) | 0.11 |
| Definitely evening | 131 (85.1) | 69 (89.6) | 62 (80.5) | |
BMI = Body Mass Index, DLMO = Dim Light Melatonin Onset, DBT-DLMO PAD = Desired Bedtime –Dim Light Melatonin Onset Phase Angle Difference, CGI = Clinical Global Impressions scale, cMEQ = Composite Morningness-Eveningness Questionnaire; Data is represented as mean ± SD.
*Average objective bed and wake times over 5–7 days.
˄Reduced n.