Table 1.
Basic characteristics of case and control patients
| Lung cancer (n = 228) | Control (n = 301) | p | |
|---|---|---|---|
| Age (yr) | 58.7 ± 10 | 50.2 ± 8.1 | < 0.001a |
| Sex | < 0.001b | ||
| Male | 178 (78.1%) | 188 (62.5%) | |
| Female | 50 (21.9%) | 113 (37.5%) | |
| Smoking status | < 0.001a | ||
| Smoker | 165 (72.4%) | 91 (30.2%) | |
| Nonsmoker | 63 (27.6%) | 210 (69.8%) | |
| Drinking Status | 0.101a | ||
| Drinking | 37 (16.2) | 66 (21.9) | |
| Nondrinking | 191 (83.8) | 235 (78.1) | |
| Histology type | |||
| SCLC | 37 (16.2%) | ||
| LAC | 73 (32%) | ||
| LSCC | 80 (35.1%) | ||
| LASC | 11 (4.8%) | ||
| Others | 27 (32%) |
Abbreviations: SCLC, small-cell lung cancer; LAC, lung adenocarcinoma; LSCC, lung squamous cell carcinoma; LASC, lung adenosquamous carcinoma.
a
p values were calculated by Student t tests;
b
p values were calculated from two-sided chi-square tests.