Table 4.
Psychiatric symptoms of study participants.
| Variables | Ketamine (n = 159) | Poly drugs (n = 26) | Cigarette (n = 49) | Total (n = 234) | F/χ2 | p |
|---|---|---|---|---|---|---|
| Mean (SD) or n (%) | Mean (SD) or n (%) | Mean (SD) or n (%) | Mean (SD) or n (%) | |||
| Psychiatric symptoms, SCL-90R | ||||||
| Global severity index | 1.37 (0.43) | 1.41 (0.48) | 1.57 (0.58) | 1.42 (0.48) | 3.24 | .041 |
| Somatization | 14.53 (4.86) | 15.35 (5.83) | 16.18 (5.75) | 14.97 (5.19) | 1.99 | .139 |
| Obsessive–compulsive | 15.32 (5.10) | 15.76 (6.29) | 18.14 (7.23) | 15.96 (5.83) | 4.55 | .012 |
| Interpersonal sensitivity | 12.16 (4.28) | 12.52 (4.80) | 14.61 (7.18) | 12.72 (5.15) | 4.38 | .014 |
| Depression | 18.29 (7.14) | 18.62 (7.35) | 21.10 (9.78) | 18.92 (7.84) | 2.45 | .088 |
| Anxiety | 13.39 (4.94) | 13.88 (5.29) | 14.94 (5.49) | 13.77 (5.11) | 1.74 | .179 |
| Hostility | 8.38 (3.41) | 7.96 (2.39) | 9.43 (4.28) | 8.55 (3.58) | 2.08 | .127 |
| Phobic anxiety | 8.38 (2.83) | 9.35 (3.72) | 8.82 (3.01) | 8.60 (2.98) | 1.53 | .218 |
| Paranoid ideation | 8.32 (3.27) | 7.96 (2.72) | 9.08 (3.41) | 8.44 (3.25) | 1.35 | .260 |
| Psychoticism | 13.25 (4.33) | 13.19 (3.92) | 15.80 (6.35) | 13.78 (4.88) | 5.53 | .005 |
Bonferroni correction was used to adjust multiple comparisons.
*p < .05/10 = .005.