Table 2 Characteristics associated with smoking in university students (n = 1205)
|  | Nonsmokers n = 640 (%) | Current smokers n = 565 (%) |
|---|---|---|
Parental smoking | ||
 Father smoker | 301 (47.6) | 288 (51.6) |
 Mother smoker* | 180 (29.1) | 209 (38.3) |
Family history of cancer related to smoking | 26 (4.7) | 24 (4.5) |
Fiends smokers* | 437 (69.7) | 500 (89.4) |
Knowledge/awareness of harmfulness* | 622 (98) | 524 (92.7) |
Physical exercise* | ||
 None or <2 h weekly | 300 (49.7) | 336 (59.6) |
 Medium (3–7 h weekly) | 208 (34.4) | 181 (32.1) |
 Heavy (more than 1 h daily) | 96 (15.9) | 47 (8.3) |
Cough* | 81 (16.4) | 286 (51) |
Decrease of physical fitness* | 76 (14.7) | 385 (68.5) |
Respiratory infections ≥2 times last year | 48 (8.4) | 68 (12.5) |
Hospitalizations due to respiratory infections | 11 (2) | 17 (3.1) |