Demographic and other characteristics by smokers’ discontent level* (n=1230)
| Respondent characteristics | Respondents who indicated having low level of discontent (n=98) % (95% CI) | Respondents who indicated having moderate level of discontent (n=85) % (95% CI) | Respondents who indicated having high level of discontent (n=1047) % (95% CI) | Adjusted OR for having moderate discontent (low is reference)† AOR (95% CI) | Adjusted OR for having high discontent (low is reference)† AOR (95% CI) |
| Demographic | |||||
| Sex* | |||||
| Male | 8.5 (4.9 to 12.1) | 12.9 (8.3 to 17.5) | 78.6 (73.2 to 84.0) | Reference | Reference |
| Female | 10.3 (6.7 to 14.0) | 5.1 (2.5 to 7.7) | 84.6 (80.3 to 88.9) | 0.3 (0.1 to 0.8)* | 0.9 (0.5 to 1.6) |
| Age (years) | |||||
| 18–34 | 8.5 (4.3 to 12.8) | 13.3 (7.7 to 19.0) | 78.1 (71.5 to 84.8) | Reference | Reference |
| 35–54 | 10.8 (6.2 to 15.5) | 7.7 (3.4 to 11.9) | 81.5 (75.6 to 87.4) | 0.5 (0.2 to 1.4) | 0.7 (0.4 to 1.5) |
| >55 | 8.7 (4.6 to 12.8) | 4.9 (2.5 to 7.2) | 86.4 (81.8 to 91.1) | 0.6 (0.2 to 1.6) | 1.2 (0.6 to 2.5) |
| Race/ethnicity* | |||||
| White, non-Hispanic | 8.4 (5.8 to 10.9) | 6.0 (3.6 to 8.4) | 85.6 (82.3 to 89.0) | Reference | Reference |
| Other | 11.3 (6.0 to 16.5) | 13.0 (7.5 to 18.5) | 75.7 (68.8 to 82.7) | 1.2 (0.5 to 3.0) | 0.7 (0.4 to 1.4) |
| Education | |||||
| High school or less | 7.8 (4.5 to 11.0) | 9.9 (6.0 to 13.8) | 82.3 (77.6 to 87.1) | Reference | Reference |
| Some college | 10.5 (5.7 to 15.4) | 5.1 (2.2 to 8.0) | 84.4 (78.9 to 89.8) | 0.2 (0.1 to 0.6)* | 0.7 (0.3 to 1.4) |
| College degree+ | 13.7 (6.2 to 21.2) | 11.1 (4.4 to 17.7) | 75.2 (66.3 to 84.2) | 0.5 (0.1 to 1.8) | 0.5 (0.2 to 1.1) |
| Household income | |||||
| <$30 000 | 8.7 (4.3 to 13.2) | 12.1 (7.0 to 17.2) | 79.1 (72.8 to 85.4) | Reference | Reference |
| $30 000–$60 000 | 10.1 (5.1 to 15.2) | 4.9 (1.6 to 8.2) | 84.9 (79.2 to 90.7) | 0.3 (0.1 to 0.8) | 0.8 (0.3 to 1.6) |
| $>60 000 | 9.7 (5.7 to 13.7) | 8.0 (3.9 to 12.2) | 82.2 (76.8 to 87.6) | 0.4 (0.1 to 1.3) | 0.8 (0.4 to 1.8) |
| Perceived health* | |||||
| Excellent/very good | 12.5 (7.5 to 17.5) | 13.2 (8.1 to 18.2) | 74.3 (67.9 to 80.7) | Reference | Reference |
| Good | 7.3 (4.2 to 10.4) | 7.5 (3.4 to 11.5) | 85.2 (80.4 to 90.1) | 1.1 (0.4 to 3.0) | 2.0 (1.0 to 3.9)* |
| Fair/poor | 6.6 (1.9 to 11.2) | 2.9 (0.9 to 4.9) | 90.6 (85.5 to 95.6) | 0.5 (0.1 to 1.5) | 2.3 (1.0 to 5.5) |
| Presence of children under 18 years in the household | |||||
| No | 8.8 (5.8 to 11.9) | 8.4 (5.3 to 11.6) | 82.7 (78.6 to 86.9) | Reference | Reference |
| Yes | 10.8 (6.0 to 15.6) | 9.2 (4.8 to 13.7) | 80.0 (73.9 to 86.1) | 0.8 (0.3 to 2.3) | 1.0 (0.5 to 1.9) |
| Nicotine dependency | |||||
| Cigarettes smoked per day* | |||||
| 1–5 | 15.7 (9.2 to 22.2) | 14.8 (8.6 to 21.0) | 69.5 (61.6 to 77.4) | Reference | Reference |
| 6–10 | 7.5 (3.6 to 11.5) | 6.6 (2.9 to 10.3) | 85.9 (80.7 to 91.1) | 0.9 (0.3 to 2.7) | 2.5 (1.1 to 5.4)* |
| 11–15 | 3.6 (0.6 to 6.6) | 5.4 (0.2 to 10.7) | 91.0 (85.1 to 96.9) | 1.8 (0.4 to 8.3) | 5.0 (1.8 to 13.9)* |
| >15 | 7.8 (4.1 to 11.6) | 5.8 (1.6 to 10.1) | 86.3 (80.9 to 91.8) | 0.9 (0.3 to 2.9) | 2.2 (1.0 to 4.8)* |
| Time after waking until first cigarette: how soon after waking do you usually have your first smoke?* | |||||
| Within 30 min | 6.8 (3.9 to 9.7) | 7.3 (3.9 to 10.8) | 85.9 (81.6 to 90.2) | Reference | Reference |
| >30 min | 12.8 (8.3 to 17.3) | 10.0 (5.9 to 14.0) | 77.2 (71.7 to 82.8) | 0.7 (0.2 to 1.8) | 0.4 (0.2 to 0.9)* |
| Perceived addiction to cigarettes | |||||
| To what extent, if at all, do you agree that nicotine is the main substance in tobacco that makes people become addicted to tobacco products?* | |||||
| Disagree | 18.9 (8.3 to 29.4) | 8.8 (1.0 to 16.6) | 72.4 (60.6 to 84.1) | Reference | Reference |
| Neither disagree nor agree | 10.2 (1.4 to 19.0) | 15.2 (5.2 to 25.3) | 74.6 (62.4 to 86.8) | 3.7 (0.6 to 22.3) | 1.4 (0.5 to 4.4) |
| Agree | 8.1 (5.3 to 10.8) | 6.7 (4.0 to 9.4) | 85.3 (81.6 to 88.9) | 1.9 (0.4 to 8.4) | 1.9 (0.9 to 4.1) |
| Do you ever have strong cravings to smoke cigarettes?* | |||||
| No | 13.2 (7.1 to 19.3) | 20.5 (12.9 to 28.0) | 66.3 (57.8 to 74.8) | Reference | Reference |
| Yes | 8.5 (5.6 to 11.4) | 4.7 (2.5 to 7.0) | 86.8 (83.3 to 90.3) | 0.3 (0.1 to 0.8)* | 2.0 (1.1 to 3.8)* |
| Perceptions of lung cancer risk | |||||
| How likely do you think it is that you will develop lung cancer in the future?* | |||||
| Unlikely | 18.4 (10.8 to 25.9) | 15.1 (8.5 to 21.7) | 66.6 (57.8 to 75.3) | Reference | Reference |
| Neither unlikely nor likely | 8.2 (4.5 to 11.8) | 10.4 (5.8 to 15.1) | 81.4 (75.8 to 86.9) | 2.0 (0.7 to 5.5) | 2.9 (1.3 to 6.3)* |
| Likely | 6.0 (2.7 to 9.4) | 3.8 (0.8 to 6.8) | 90.2 (85.8 to 94.5) | 1.3 (0.4 to 4.6) | 5.1 (2.2 to 12.0)* |
| Lung cancer worry | |||||
| How often do you worry about lung cancer?* | |||||
| Rarely or never | 12.8 (8.0 to 17.6) | 13.9 (8.9 to 18.9) | 73.3 (66.9 to 79.7) | Reference | Reference |
| Sometimes | 10.4 (6.0 to 14.8) | 5.2 (2.1 to 8.3) | 84.4 (79.3 to 89.5) | 0.4 (0.2 to 0.9)* | 1.5 (0.8 to 2.8) |
| Often or all of the time | 4.8 (0.8 to 8.7) | 6.4 (1.1 to 11.7) | 88.8 (82.4 to 95.1 | 1.5 (0.4 to 6.8) | 4.6 (1.7 to 12.4)* |
| Overall, how many people who develop lung cancer do you think are cured?* | |||||
| Less than one quarter | 10.2 (6.1 to 14.2) | 5.7 (3.1 to 8.2) | 84.2 (79.6 to 88.8) | Reference | Reference |
| About one quarter to about half | 10.3 (4.8 to 15.8) | 5.6 (1.4 to 9.9) | 84.1 (77.5 to 90.6) | 0.7 (0.2 to 2.0) | 0.9 (0.5 to 1.8) |
| About half to nearly all | 8.2 (3.9 to 12.5) | 15.3 (8.7 to 21.8) | 76.5 (69.3 to 83.8) | 3.3 (1.2 to 8.7) | 1.3 (0.7 to 2.7) |
*P<0.05.
†Discontent index: the responses from items smoker regret, perceived addiction and intention to quit was used to create a classification grid to assign a score from 1=low discontent to 5=high discontent (see online supplementary figure S1). Levels #1 and #2 are combined as Low, Level #3 is Moderate, and Levels #4 and #5 are combined as High for the multinomial logistic analyses.