Percentage of people, by reason for quitting smoking since previous wave
| Reported in wave 2 | Reported in wave 3 | |
| Health | 48.5%, CI (42.2% to 54.9%) | 16.3, CI (11.1% to 23.3%) |
| Cost | 44.3%, CI (38.1% to 50.7%) | 49.0%, CI (40.9% to 57.1%) |
| Both health and cost | N/A | 25.8%, CI (19.4% to 33.6%) |
| Other | 7.2%, CI (4.5% to 11.3%) | 8.8%, CI (5.2% to 14.7%) |
The survey was administered slightly differently in wave 2 and wave 3: respondents could select only one reason in wave 2 while in wave 3 they could select more than one reason.
N/A, not available.