Summary of delivery of MI and SVAI
| UC+MI (n=170) | UC+SVAI (n=170) | |
| Received intervention, n (%) | 119 (70) | 152 (89) |
| Number of sessions*, n (%) | ||
| One session | 3 (2) | 13 (8) |
| Two sessions | 106 (62) | 106 (62) |
| Three sessions | n.a. | 10 (6) |
| Four sessions | n.a. | 19 (11) |
| Days until first session*, mean (SD) | 21 (13) | 6 (5) |
| Intervention period* (days), mean (SD) | 36 (17) | 50 (27) |
| Intervention period low/medium-risk group | n.a. | 42 (21) |
| Intervention period high-risk group | n.a. | 74 (30) |
| Duration of first session† (min), median (IQR) | 41 (26–45) | 45 (35–60) |
| Duration of follow-up sessions‡ (min), median (IQR) | 46 (45–49) | 25 (20–30) |
*We did not have data on 4 of the participants receiving SVAI and 10 participants receiving MI.
†We only had data from 15 MI sessions.
‡We only had data from 6 MI sessions.
%, per cent of participants randomised to the intervention arm; MI, motivational interviewing; n, number; n.a., not applicable; SVAI, stratified vocational advice intervention; UC, usual case management.