Sample characteristics (n=1849)
| Characteristics | n (weighted %) |
|---|---|
| Age (years) | |
| 19–29 | 239 (19.5) |
| 30–39 | 339 (19.2) |
| 40–49 | 337 (20.9) |
| 50–59 | 334 (18.3) |
| 60+ | 600 (22.2) |
| Education level | |
| Below elementary school graduation | 714 (29.2) |
| Middle school graduation | 192 (10.5) |
| High school graduation | 588 (38.2) |
| Above college graduation | 354 (22.1) |
| Monthly mean household income | |
| 1st quartile | 423 (17.7) |
| 2nd quartile | 479 (28.6) |
| 3rd quartile | 478 (28.5) |
| 4th quartile | 424 (25.2) |
| Occupation | |
| Economically inactive population | 958 (53.0) |
| Non-manual worker | 441 (27.3) |
| Manual worker | 446 (19.7) |
| Problem drinking | |
| No | 1600 (82.8) |
| Yes | 249 (17.2) |
| Coffee consumption | |
| One cup and less a day | 1193 (70.8) |
| More than 2 cups a day | 487 (29.2) |
| Self-reported questionnaires | |
| Non-smoker | 1636 (86.8) |
| Past smoker | 107 (6.3) |
| Current smoker | 106 (6.9) |
| Urine cotinine test | |
| Non-smoker (<50 mL) | 1609 (85.6) |
| Current Smoker (≥50 mL) | 240 (14.4) |
| Laryngeal disorders | |
| No | 1757 (95.7) |
| Yes | 92 (4.3) |