Estimated sleep time 0 (hour/day)

≤8

802 (90.32%)

748 (89.80%)

54 (87.27%)

>8 h

86 (09.68%)

85 (10.20%)

1 (12.73%)

Current depression

Absent

412 (46.40%)

410 (49.22%)

2 (03.64%)

Mild

248 (27.93%)

236 (28.33%)

12 (21.82%)

Moderate

145 (16.33%)

126 (15.13%)

19 (34.55%)

Severe

83 (09.35%)

61 (07.32%)

22 (40.00%)