| Year of treatment outcome | |||||||
---|---|---|---|---|---|---|---|---|
 | 1998 | 1999 | 2000/01* | 2001/02 | ||||
 | Discharged drug free | Dropped out | Discharged drug free | Dropped out | Discharged drug free | Dropped out | Discharged drug free | Dropped out |
n (%) | 443 (44.6%) | 550 (55.4%) | 718 (59.4%) | 491 (40.6%) | 360 (34.7%) | 676 (65.3%) | 281 (26.7%) | 772 (73.3%) |
< 25 years old | 118 (26.6%) | 166 (30.2%) | 144 (20.1%) | 110 (22.4%) | 72 (20.0%) | 114 (16.9%) | 41 (14.6%) | 146 (18.9%) |
25 years old and over | 325 (73.4%) | 384 (69.8%) | 574 (79.9%) | 381 (77.6%) | 288 (80.0%) | 562 (83.1%) | 240 (85.4%) | 626 (81.1%) |
within year comparison | P = 0.219 | P = 0.325 | P = 0.210 | P = 0.105 | ||||
Female | 130 (29.3%) | 153 (27.8%) | 227 (31.6%) | 148 (30.1%) | 109 (30.3%) | 232 (34.3%) | 92 (32.7%) | 226 (29.3%) |
Male | 313 (70.7%) | 397 (72.2%) | 491 (68.4%) | 343 (69.9%) | 251 (69.7%) | 444 (65.7%) | 189 (67.3%) | 546 (70.7%) |
within year comparison | P = 0.596 | P = 0.587 | P = 0.187 | P = 0.279 | ||||
New to treatment that year | 239 (54.0%) | 328 (59.6%) | 324 (45.1%) | 195 (39.7%) | 193 (53.6%) | 377 (55.8%) | 118 (42.0%) | 366 (47.4%) |
Previously seen** | 204 (46.0%) | 222 (40.4%) | 394 (54.9%) | 296 (60.3%) | 167 (46.4%) | 299 (44.2%) | 163 (58.0%) | 406 (52.6%) |
within year comparison | P = 0.072 | P = 0.062 | P = 0.506 | P = 0.119 |