Table 2.
Drug use and sex risk behavior amongst 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 (%) | |||
| Drug-related variables | ||||||
| Ketamine use routes | 2.23 | .136 | ||||
| Smoking | 152 (95.6) | 23 (88.5) | 175 (94.6) | |||
| Snorting | 7 (4.4) | 3 (11.5) | 10 (5.4) | |||
| Days used in past 30 days | 13.74 (11.18) | 18.50 (10.60) | 14.41 (11.19) | 4.11 | .044 | |
| Ketamine use duration (months) | 43.46 (42.88) | 47.04 (44.85) | 43.98 (43.06) | 0.15 | .697 | |
| Ketamine dose used per time (g) | 0.44 (0.54) | 0.58 (1.28) | 0.46 (0.69) | 0.99 | .321 | |
| Addiction severity index | ||||||
| Alcohol composite score | 0.160 (0.151) | 0.073 (0.091) | 0.158 (0.118) | 0.150 (0.141) | 4.45 | .013 |
| Drug composite score | 0.069 (0.059) | 0.112 (0.074) | 0.003 (0.014) | 0.059 (0.063) | 39.15* | .000 |
| Sex-related risk | ||||||
| Multiple sexual partners | 2.19 | .335 | ||||
| No | 121 (76.1) | 18 (69.2) | 41 (83.7) | 180 (76.9) | ||
| Yes | 38 (23.9) | 8 (30.8) | 8 (16.3) | 54 (23.1) | ||
| Exchanging drugs/money/sex 30 days | 4.95 | .084 | ||||
| No | 146 (91.8) | 23 (88.5) | 49 (100.0) | 218 (93.2) | ||
| Yes | 13 (8.2) | 3 (11.5) | 0 (0) | 16 (6.8) | ||
| Condom use in 6 months | 4.00 | .676 | ||||
| Did not use | 20 (12.6) | 3 (11.5) | 4 (8.2) | 27 (11.5) | ||
| Occasionally | 32 (20.1) | 7 (26.9) | 13 (26.5) | 52 (22.2) | ||
| Often | 21 (13.2) | 4 (15.4) | 3 (6.1) | 28 (12.0) | ||
| Always/no sex | 86 (54.1) | 12 (46.2) | 29 (59.2) | 127 (54.3) | ||
Bonferroni correction was used to adjust multiple comparisons. Tukey’s method was performed to test the post-hoc difference.
*p < .05/9 = .0056.