Table 1.
Socio-demographical characteristics of study participants.
| Characteristics | Overall (n = 376) | Men (n = 222) | Women (n = 154) | P |
|---|---|---|---|---|
| Mean age, mean(SD, years) | 53.1 (9.6) | 51.7 (8.9) | 55 (10.3) | 0.001*** |
| BMI, mean(SD, kg/m2) | 25.5 (3.8) | 25.5 (3.2) | 25.6 (4.5) | 0.65 |
| Educational attainment, n(%) | < 0.001*** | |||
| Primary school or below | 117 (31.1) | 35 (15.8) | 82 (53.2) | |
| Junior high school | 138 (36.7) | 89 (40.1) | 49 (31.8) | |
| High school or above | 121 (32.2) | 98 (44.1) | 23 (14.9) | |
| Smoke status, n(%) | < 0.001*** | |||
| Active smoker | 80 (21.3) | 79 (35.6) | 1 (0.6) | |
| Never smoked | 246 (65.4) | 96 (43.2) | 150 (97.4) | |
| Ever smoker | 50 (13.3) | 47 (21.2) | 3 (1.9) | |
| Incense burning, n(%) | 0.81 | |||
| Yes | 35 (9.1) | 20 (9) | 15 (9.7) | |
| No | 341 (90.9) | 202 (91) | 139 (90.3) | |
BMI, body mass index; SD, standard deviation.
*** P < 0.001 between groups.