Table 1.
Participant characteristics (n=66)
| Sex | 32 males, 34 females |
|---|---|
| Median age | 16 years (IQR: 14–21 years) |
| Median age at DSWPD onset | 15 years (IQR: 13–17.75 years) |
| Median duration of DSWPD | 12 months (IQR: 5.25–28.5 months) |
| Sleep data 1 week prior to hospitalization | |
| Sleep time | 2:15±0:33 |
| Wake time | 12:21±0:31 |
| Median duration between admission and remission (regardless of being awakened by physician) | 1 day (IQR: 1–2 days) |
| Median duration between admission and remission (waking up on one’s own) | 1 day (IQR: 1–3 days) |
| Median length of hospital stay | 14 days (IQR: 9.25–19 days) |
| Living with others at home | 64 |
| Coexisting mental disorders (DSM-5) | |
| ID | 1 |
| ASD | 4 |
| ADHD | 3 |
| ASD and ADHD | 1 |
| BPD | 1 |
| DD | 3 |
| AD | 1 |
| SSDs | 1 |
Note: Values are presented as numbers with IQRs.
Abbreviations: AD, anxiety disorders; ADHD, attention-deficit/hyperactivity disorder; ASD, autism spectrum disorder; BPD, bipolar and related disorders; DD, depressive disorders; DSM-5, Diagnostic and Statistical Manual of Mental Disorders, 5th edition; DSWPD, delayed sleep–wake phase disorder; ID, intellectual disabilities; SSDs, somatic symptoms and related disorders.