Table 1.
The characteristics of survey participants.
| Characteristics | Male | Female | Total | p |
|---|---|---|---|---|
| Sex, n (%) | 21,512 (67.64) | 10,294 (32.36) | 31,806 | |
| a Age (year), mean (SD) | 18.46 (0.90) | 18.40 (0.81) | 18.44 (0.87) | 0.001 |
| c Freshman cohort, n (%) | ||||
| 2013–2014 | 3966 (66.33) | 2013 (33.67) | 5979 (18.80) | 0.001 |
| 2014–2015 | 5322 (65.26) | 2833 (34.74) | 8155 (25.64) | |
| 2015–2016 | 4026 (67.90) | 1903 (32.10) | 5929 (18.64) | |
| 2016–2017 | 3770 (71.07) | 1535 (28.93) | 5305 (16.68) | |
| 2017–2018 | 4428 (68.78) | 2010 (31.22) | 6438 (20.24) | |
| b Body mass index, mean (SD) | ||||
| BMI (kg/m2) | 21.89 (3.18) | 20.35 (2.77) | 21.40 (3.14) | 0.001 |
| a Smoking, n (%) | 127 (84.67) | 23 (15.33) | 159 (0.47) | 0.001 |
| a Drinking, n (%) | 714 (82.83) | 148 (117.17) | 862 (2.69) | 0.001 |
| b Self-rated physical health, mean (SD) | ||||
| Physical health score (1–10) | 5.19 (2.35) | 5.08 (2.29) | 5.16 (2.33) | 0.001 |
| b Self-rated mental health, mean (SD) | ||||
| Mental health score (1–10) | 6.07 (2.63) | 5.97 (2.63) | 6.04 (2.63) | 0.001 |
| a Disease number, mean (SD) | 0.57 (0.49) | 0.62 (0.49) | 0.59 (0.49) | 0.001 |
Note: a p-values come from the Mann–Whitney U test; b p-values come from t-tests; c p-values come from Chi-squared tests.