| Classification | Type | Number (%) | p value |
| According smoking index | Mild quitter | 258 (84.3%) | 0.001* |
| Moderate quitter | 36 (11.8%) | ||
| Heavy quitter | 12 (3.9%) | ||
| According duration of smoking cessation | Recent quitter | 126 (41.2%) | 0.208 |
| Remote quitter | 180 (58.8%) | ||
| According type of smoking | Cigarette smokers | 204 (66.7%) | 0.001* |
| Hookah smokers | 66 (21.6%) | ||
| Mixed smokers | 24 (7.8%) | ||
| Others (Vape) | 12 (3.9%) |