Table 2 Patients’ treatment characteristics and their treatment adherence
Treatment characteristics | Number of patients (%) | ||||
|---|---|---|---|---|---|
All patients | Complete adherence (no missing doses) | Non-adherence | |||
1 to 8 missing doses | 9 missing doses or higher | ||||
Initial drug use age | < 20 | 167 (27.8) | 82 (49.1) | 73 (43.7) | 12 (7.2) |
20 to 29 | 321 (53.5) | 182 (56.7) | 121 (37.7) | 18 (5.6) | |
30 and higher | 112 (18.7) | 62 (55.4) | 42 (37.5) | 8 (7.1) | |
Duration of drug use (year) | < 5 | 115 (19.2) | 58 (50.4) | 51 (44.3) | 6 (5.2) |
5 to < 10 | 186 (31.0) | 109 (58.6) | 66 (35.5) | 11 (5.9) | |
10 to < 15 | 133 (22.2) | 68 (51.1) | 52 (39.1) | 13 (9.8) | |
15 and higher | 166 (27.7) | 91 (54.8) | 67 (40.4) | 8 (4.8) | |
The number of previous treatment | No | 124 (20.7) | 53 (42.7) | 65 (52.4) | 6 (4.8) |
1 to 2 | 300 (50.0) | 176 (58.7) | 105 (35.0) | 19 (6.3) | |
3 or more | 176 (29.3) | 97 (55.1) | 66 (37.5) | 13 (7.4) | |
Treatment time (year) | < 3 | 185 (30.8) | 56 (30.3) | 121 (65.4) | 8 (4.3) |
3 to 6 | 198 (33.0) | 124 (62.6) | 57 (28.8) | 17 (8.6) | |
> 6 | 217 (36.2) | 146 (67.3) | 58 (26.7) | 13 (6.0) | |
Daily methadone dose (mg) | < 60 | 220 (36.7) | 130 (59.1) | 75 (34.1) | 15 (6.8) |
60 to 120 | 298 (49.7) | 150 (50.3) | 129 (43.3) | 19 (6.4) | |
> 120 | 82 (13.7) | 46 (56.1) | 32 (39.0) | 4 (4.9) | |
Comorbidity | No | 279 (46.5) | 146 (52.3) | 118 (42.3) | 15 (5.4) |
Yes | 321 (53.5) | 180 (56.1) | 118 (36.8) | 23 (7.2) | |
Urine opioid tests | Positive | 68 (11.3) | 23 (33.8) | 41 (60.3) | 4 (5.9) |
Negative | 532 (88.7) | 303 (57.0) | 195 (36.7) | 34 (6.4) | |