Table 1.
Characteristics of study participants.
| Characteristic | Total (n = 3347) |
Nocturnal Eating Behavior (n = 160) |
Sleep-Related Eating Disorder-Like Behavior (n = 73) |
|---|---|---|---|
| Age, mean (SD), year | 22.9 (1.8) | 22.9 (1.8) | 22.8 (1.7) |
| Sex (percent male) | 45.3 | 36.3 | 46.6 |
| Body mass index, mean (SD), kg/m2 | 21.1 (3.6) | 21.5 (4.4) | 22.2 (4.4) |
| Current smoker (%) | 10.5 | 20.0 | 21.9 |
| Regular alcohol consumption (%) | 35.1 | 34.4 | 47.9 |
| Living alone (%) | 34.1 | 35.0 | 35.6 |
| Use of hypnotic medication (three or more times per week) (%) | 2.8 | 13.1 | 12.3 |
| Previous and/or current sleepwalking (%) | 8.5 | 35.0 | 71.2 |
| Typical sleep duration, mean (SD), hours | 6.8 (1.4) | 6.9 (1.6) | 7.0 (1.7) |
| Midpoint on weekdays, mean (SD), time | 4:22 (1:40) | 4:41 (1:51) | 4:17 (1:33) |
| Pittsburgh Sleep Quality Index score, mean (SD), points | 5.5 (2.7) | 7.6 (3.1) | 7.2 (3.3) |
Nocturnal eating behavior and sleep-related eating disorder-like behavior were defined as occurring at least once per year. SD, standard deviation.