From: Mis-anaesthetized society: expectancies and recreational use of ketamine in Taiwan
Variables | Illicit drug-naïve (Group 1; N = 840) | Exclusive ketamine use (Group 2; N = 30) | Polydrug ketamine use (Group 3; N = 132) | The other illicit drug use (Group 4; N = 113) | Group comparisons | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
N | %wt | 95% CI | N | %wt | 95% CI | N | %wt | 95% CI | N | %wt | 95% CI | Pc | Post-hocd | |
Male | 504 | 55.4 | (49.3–62.0) | 10 | 63.2 | (37.6–86.4) | 44 | 59.7 | (45.9–73.8) | 36 | 64.5 | (50.2–79.6) | .160 | – |
Education < college | 513 | 65.9 | (60.0–71.5) | 23 | 83.0 | (63.2–96.8) | 94 | 71.3 | (57.6–82.5) | 71 | 69.6 | (55.6–81.6) | .141 | – |
Unemployment | 39 | 5.8 | (3.4–8.4) | 3 | 10.8 | (0.0–29.0) | 16 | 14.5 | (3.7–28.5) | 21 | 22.6 | (7.8–39.6) | < .001 | 3, 4 > 1 |
Early-onseta tobacco use | 265 | 26.7 | (22.0–30.9) | 17 | 61.8 | (38.2–85.9) | 72 | 47.5 | (35.7–62.1) | 52 | 52.5 | (37.1–63.8) | <.001 | 2, 3, 4 > 1 |
Early-onseta alcohol useb | 290 | 29.8 | (25.4–34.9) | 15 | 47.9 | (23.7–74.4) | 64 | 45.8 | (33.5–58.8) | 58 | 57.6 | (43.4–70.0) | <.001 | 3, 4 > 1 |
 | N | Mean | SD | N | Mean | SD | N | Mean | SD | N | Mean | SD | Pc | Post-hocd |
Age in years | 840 | 28.1 | 8.2 | 30 | 21.8 | 3.6 | 132 | 26.0 | 5.5 | 113 | 30.1 | 7.6 | < .001 | 1 > 2, 3; 4 > 3 > 2 |
Age at first tobacco use | 772 | 17.1 | 3.7 | 29 | 14.6 | 2.1 | 129 | 15.4 | 3.3 | 110 | 15.6 | 3.0 | < .001 | 1 > 2, 3, 4 |
Age at first alcohol use | 766 | 16.0 | 4.1 | 29 | 14.9 | 3.1 | 130 | 14.6 | 3.5 | 109 | 15.2 | 3.9 | < .001 | 1 > 3 |