Table 2 Summary of 6-month self-reported and urine verified abstinence and missing data by treatment arms and by type of intervention
Self-report abstinence and survey missing at 6 months | Urine-verified abstinence and urine missing at 6 months | ||||||
|---|---|---|---|---|---|---|---|
Treatment group | Total N | Self-report abstinence n (%) | Self-report failure n (%) | Survey question missing n (%) | Urine-verified abstinence n (%a) | Urine-verified failure n (%a) | Urine missing n (%a) |
By treatment arm | |||||||
Tx1 | 306 | 65 (21.2%) | 194 (63.4%) | 47 (15.4%) | 38 (58.5%) | 6 (9.2%) | 21 (32.3%) |
Tx2 | 296 | 59 (19.9%) | 170 (57.4%) | 67 (22.6%) | 34 (57.6%) | 6 (10.2%) | 19 (32.2%) |
Tx3 | 309 | 61 (19.7%) | 197 (63.8%) | 51 (16.5%) | 35 (57.4%) | 6 (9.8%) | 20 (32.8%) |
Tx4 | 306 | 79 (25.8%) | 156 (51.0%) | 71 (23.2%) | 50 (63.3%) | 7 (8.9%) | 22 (27.8%) |
By intervention | |||||||
No counseling (Tx1 + Tx3) | 615 | 126 (20.5%) | 391 (63.6%) | 98 (15.9%) | 73 (57.9%) | 12 (9.5%) | 41 (32.5%) |
Counseling (Tx2 + Tx4) | 602 | 138 (22.9%) | 326 (54.2%) | 138 (22.9%) | 84 (60.9%) | 13 (9.4%) | 41 (29.7%) |
Single contest (Tx1 + Tx2) | 602 | 124 (20.6%) | 364 (60.5%) | 114 (18.9%) | 72 (58.1%) | 12 (9.7%) | 40 (32.2%) |
Multiple contests (Tx3 + Tx4) | 615 | 140 (22.8%) | 353 (57.4%) | 122 (19.8%) | 85 (60.7%) | 13 (9.3%) | 42 (30.0%) |
Overall | 1217 | 264 (21.7%) | 717 (58.9%) | 236 (19.4%) | 157 (59.5%)b | 25 (9.5%)b | 82 (31.1%) |