Table 1 Demographic characteristics and lifestyle data of the participants
|  | n = 1034 |
|---|---|
Age (y) | 19.7 ± 1.2 |
Sex | |
 Male n (%) | 225 (21.8) |
 Female n (%) | 809 (78.2) |
Grade | |
 Freshman n (%) | 369 (35.7) |
 Sophomore n (%) | 236 (22.8) |
 Junior n (%) | 280 (27.1) |
 Senior n (%) | 147 (14.2) |
 N/A n (%) | 2 (0.2) |
Living alone | |
 Yes n (%) | 218 (21.1) |
 No n (%) | 703 (68.0) |
 N/A n (%) | 113 (10.9) |
Commute time (min) | 59.6 ± 33.9 |
School hours (h) | 6.9 ± 1.8 |
Class start time (h:m) | 9:19 ± 0:46 |
Class closing time (h:m) | 16:15 ± 1:37 |
Club activities | |
 Yes n (%) | 402 (38.9) |
 No n (%) | 613 (59.3) |
 N/A n (%) | 19 (1.8) |
Part-time job | |
 Yes n (%) | 686 (66.3) |
 No n (%) | 333 (32.2) |
 N/A n (%) | 15 (1.5) |
Exercise habit | |
 Yes n (%) | 499 (48.3) |
 No n (%) | 519 (50.2) |
 N/A n (%) | 16 (1.5) |
Alcohol consumption | |
 Yes n (%) | 437 (42.3) |
 No n (%) | 584 (56.5) |
 N/A n (%) | 13 (1.3) |
Smoking | |
 Yes n (%) | 54 (5.2) |
 No n (%) | 967 (93.5) |
 N/A n (%) | 13 (1.3) |
Self-rated health status | |
 Good n (%) | 740 (71.6) |
 Poor n (%) | 279 (27.0) |
 N/A n (%) | 15 (1.5) |
Stress | |
 No n (%) | 554 (53.6) |
 Yes n (%) | 465 (45.0) |
 N/A n (%) | 15 (1.5) |