Table I.
Distribution of smoking cessation status by gender, symptoms, attitude to intervention, and use of pharmacological aids to quitting.
| Continued to smoke n (%) | Quit smoking n (%) | Quit smoking at the baseline n (%) | All n (%) | P-value of chi-square test | |
| Gender | |||||
| Men | 246 (74.3) | 60 (18.1) | 25 (7.6) | 331 (100) | 0.181 |
| Women | 171 (80.3) | 33 (15.5) | 9 (4.2) | 213 (100) | |
| Cough | |||||
| Yes | 182 (79.1) | 40 (17.4) | 8 (3.5) | 230 (100) | 0.0731 |
| No | 233 (74.8) | 53 (16.9) | 26 (8.3) | 312 (100) | |
| Sputum | |||||
| Yes | 230 (78.0) | 51 (17.3) | 14 (4.7) | 295 (100) | 0.2881 |
| No | 187 (75.1) | 41 (16.9) | 20 (8.0) | 248 (100) | |
| Pharmacological therapy | |||||
| Yes | 5 (6.9) | 57 (79.2) | 10 (13.9) | 72 (100) | <0.0012 |
| No | 412 (87.6) | 36 (7.6) | 22 (4.8) | 470 (100) | |
| NRT | 3 (5.6) | 42 (77.8) | 9 (16.7) | 54 (100) | 0.3963 |
| Bupropion | 2 (11.1) | 15 (83.3) | 1 (5.6) | 18 (100) | |
| Attitude to cessation intervention | |||||
| Positive | 271 (73.6) | 88 (23.9) | 9 (2.4) | 368 (100) | <0.0014 |
| Negative | 146 (97.3) | 3 (2.0) | 1 (0.7) | 150 (100) | |
| All n (%) | 417 (76.7) | 93 (17.1) | 34 (6.2) | 544 (100) |
Notes: 1Total number of subjects varies due to missing data for some variables;
2two quitters at the baseline missing;
3NRT = nicotine replacement therapy;
4Intervention was not given to 26 cases (24 of these had stopped smoking before this study).