| Total | United States | Canada | |
| Standard protocol | n = 61 | n = 51 | n = 10 |
| Mean (SD) | Mean (SD) | Mean (SD) | |
| Number of sessions* | 5.1 (1.3) | 5.0 (1.2)† | 7.0 (1.0)† |
| 1st session length (minutes) | 28.3 (9.8) | 30.2 (9.4) | 18.1 (2.7) |
| Follow-up session length (minutes) | 16.1 (8.3) | 17.2 (8.6) | 9.6 (1.5) |
| Specialised protocols | % | % | % |
| Pregnant women | 88.5 (8.0) | 90.2 (8.2) | 80.0 (24.8) |
| Smokeless tobacco | 60.7 (12.3) | 70.6 (12.5) | 10.0 (18.6) |
| Ethnic populations | 42.6 (12.4) | 51.0 (13.7) | 0 |
| Youths (12–17 years) | 39.3 (12.3) | 45.1 (13.7) | 10.0 (18.6) |
| Multiple addictions | 16.4 (9.3) | 15.7 (10.0) | 20.0 (24.8) |
| Young adults (18–24 years) | 13.1 (8.5) | 15.7 (10.0) | 0 |
| LGBT‡ | 9.8 (7.5) | 11.8 (8.9) | 0 |
| Chronic mental illness | 9.8 (7.5) | 9.8 (8.2) | 10.0 (18.6) |
| Older adults (55+ years) | 8.2 (6.9) | 9.8 (8.2) | 0 |
*Number of sessions refers to intended sessions prescribed by the protocol, not actual number of sessions delivered.
†Numbers for this item are United States = 49 and Canada = 3.
‡Lesbian, gay, bisexual, transgendered.