Research Article
Potentially Functional Polymorphisms in POU5F1 Gene Are Associated with the Risk of Lung Cancer in Han Chinese
Table 1
Distributions of select variables in lung cancer cases and cancer-free controls.
| Variables | Case () | Control () | |
| Age (mean ± sd.) | 61.06 ± 10.15 | 61.32 ± 11.07 | 0.473 | ≤60 | 596 (44.44%) | 883 (44.55%) | 0.980 | >60 | 745 (55.56%) | 1099 (55.45%) | Gender | | | | Male | 949 (70.77%) | 1358 (68.52%) | 0.179 | Female | 392 (29.23%) | 624 (31.48%) | Smoking status | | | | Current | 634 (47.28%) | 876 (44.20%) | <0.001 | Former | 185 (13.80%) | 86 (4.34%) | Never | 522 (38.92%) | 1020 (51.46%) | Pack-year (py.) | | | | ≤25 | 774 (57.72%) | 1505 (75.93%) | <0.001 | >25 | 567 (42.28%) | 477 (24.07%) | Histology type | | | | Squamous cell carcinoma | 481 (35.87%) | | | Adenocarcinoma | 860 (64.13%) | | |
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