Table 1.
Demographic characteristics and NSSI scores of the participants.
| adolescent depression (n = 35) | HC (n = 33) | z/χ2 | P-value | |
|---|---|---|---|---|
| Age, yrs | 15 (14~16) | 16 (14.5~17) | −1.812 | 0.070† |
| Gender (F/M) | 14/21 | 17/16 | 0.908 | 0.341‡ |
| Education (yrs.) | 9 (8~11) | 10 (8.5~12) | −1.476 | 0.140† |
| 17-HAMD score | 20 (18~24) | 4 (2.5~5) | 17.289 | <0.001† |
| BMI | 18.59 (17.21~20.20) | 19.15 (17.37~21.11) | −0.736 | 0.462† |
| Illness duration (months) | 24 (12~36) | N/A | N/A | N/A |
| NSSI frequency (1 month) | 1 (1~4) | N/A | N/A | N/A |
| NSSI frequency (6 months) | 4 (3~6) | N/A | N/A | N/A |
| NSSI frequency (1 yrs.) | 10 (6–23) | N/A | N/A | N/A |
HC, healthy control; 17-HAMD, 17-item Hamilton Depression Rating Scale; BMI, Body Mass Index; NSSI, Non-Suicidal Self-Injury. Age, education, 17-HAMD score, BMI, illness duration, and NSSI frequency (the past 1 and 6 months, the past 1 years) did not follow a normal distribution and were described in terms of the median and interquartile range (P25–P75). †The p-values were obtained by Mann–Whitney test. ‡The p-value was obtained by a chi-squared test.