Table 1 Selected demographic and clinical data
 | Healthy ( N =20) | Depressed ( N =25) | P -value |
---|---|---|---|
Demographic data | Â | Â | Â |
 Age (years) | 36 (25–52) | 39 (19–55) | 0.43 |
 Body mass index (kg m−2) | 23.7 (21.1–28.1) | 22.2 (17.1–28.0) | 0.17 |
Clinical data | Â | Â | Â |
 24-item Hamilton depression score | 1 (0–3) | 32 (24–51) | <0.0001 |
 Pittsburgh sleep quality index | 1 (1–6) | 10 (7–20) | <0.0001 |