Table 1.
Demographic characteristics of participants according to smoking status (N=2602)
| Characteristics | Smoker n (%) | Nonsmoker n(%) | OR (95% CI) | P-value |
|---|---|---|---|---|
| Gender | ||||
| Female | 429 (37.0) | 732 (63.0) | Referent | |
| Male | 545 (37.8) | 896 (62.2) | 0.96 (0.82-1.13) | 0.648a |
| Age | ||||
| 30-40 years | 487 (51.4) | 460 (48.6) | Referent | |
| 41-50 years | 322 (39.6) | 491 (60.4) | 0.62 (0.51-0.78) | <0.0001b |
| 51-60 years | 165 (19.6) | 677 (80.4) | 0.23 (0.19-0.28) | |
| Education | ||||
| Diploma or less | 520 (27.4) | 1379 (72.6) | Referent | |
| Higher education | 454 (64.6) | 249 (35.4) | 4.84 (4.02-5.81) | <0.0001a |
| Employment Status | ||||
| Employed | 558 (36.8) | 958 (63.2) | Referent | |
| Unemployed | 416 (38.3) | 670 (61.7) | 1.07 (0.91-1.25) | 0.436a |
| Family size | ||||
| ≤4 | 831 (36.9) | 1422 (63.1) | Referent | |
| >4 | 143 (41.0) | 206 (59.0) | 1.19 (0.94-1.49) | 0.142a |
| BMI (kg/m2) | ||||
| <20 | 3 (30.0) | 7 (70.0) | Referent | |
| 20-24.9 | 816 (37.5) | 1358 (62.5) | 1.40 (0.36-5.44) | |
| 25-29.9 | 451 (43.7) | 58 (56.3) | 1.81 (0.44-7.40) | 0.424b |
| ≥30 | 110 (34.9) | 205 (62.1) | 1.25 (0.32-4.94) | |
| Total | 974 (37.4) | 1628 (62.6) |
a Chi squared test/b Kruskal-Wallis rank test