Table 1 The baseline characteristics of study population
Variable | Controls | Cases | Total | P-value |
|---|---|---|---|---|
N | 257 | 207 | 464 | Â |
Age, year | 52.7 (7.5) | 58.8 (7.4) | 55.4 (8.1) | < 0.001 |
Males, n (%) | 91 (35.4) | 89 (43.0) | 180 (38.8) | 0.116 |
BMI, kg/m2 | 24.9 (3.3) | 24.1 (3.4) | 24.5 (3.3) | 0.016 |
Ever Smoker, n (%) | 43 (16.7) | 65 (31.4) | 108 (23.3) | < 0.001 |
Smoking Index*, cigarette-years | 560.4 (293.7) | 743.1 (509.6) | 670.4 (444.2) | 0.033 |
Alcohol Drinker, n (%) | 55 (21.4) | 60 (29.0) | 115 (24.8) | 0.076 |