| Total | United States | Canada | |
| n = 62 | n = 52 | n = 10 | |
| % (95% CI) | % (95% CI) | % (95% CI) | |
| Mailed self help materials | 96.8 (4.4) | 98.1 (3.7) | 90.0 (18.6) |
| Telephone based services | |||
| Proactive* with multiple sessions | 98.4 (3.1) | 100 | 90.0 (18.6) |
| Reactive† follow-up sessions | 37.1 (12.0) | 28.8 (12.3) | 80.0 (24.8) |
| Single session (>10 minutes) | 66.1 (11.8) | 61.5 (13.2) | 90.0 (18.6) |
| Brief session (1–10 minutes) | 53.2 (12.4) | 46.2 (13.6) | 90.0 (18.6) |
| Recorded messages | 50.0 (12.5) | 55.8 (13.5) | 20.0 (24.8) |
| Internet based services | |||
| General quitline information | 53.2 (12.4) | 53.8 (13.6) | 50.0 (30.1) |
| Cessation information | 53.2 (12.4) | 53.8 (13.6) | 50.0 (30.1) |
| Self directed quit plan | 33.9 (11.8) | 30.8 (12.6) | 50.0 (30.1) |
| Automated email messages | 21.0 (10.1) | 13.5 (9.3) | 60.0 (30.4) |
| Chat rooms | 17.7 (9.5) | 11.5 (8.7) | 50.0 (30.1) |
| Interactive counselling | 29.0 (11.3) | 26.9 (12.1) | 40.0 (30.4) |
| Cessation medications | |||
| Free medications | 34.6 (12.9) | 0 | |
| Discounted medications | 9.6 (8.0) | 0 | |
| Vouchers | 23.1 (11.5) | 0 | |
| Any of the above | 55.8 (13.5) | 0 |
*Proactive = the counsellor phones the client.
†Reactive = the client phones the counsellor.