Table 1.
Distribution of the selected characteristics in lung cancer cases and controls.
| Variables | Cases (N = 322) | Controls (N = 384) | P value |
|---|---|---|---|
| Gender | > 0.05a | ||
| Male | 245 (76.1%) | 278 (72.4%) | |
| Female | 77 (23.9%) | 106 (27.6%) | |
| Age (years) | 59.00 | 51.16 | < 0.05b |
| Standard Deviation | 9.83 | 11.49 | |
| Smoking Status | < 0.001a | ||
| Smokers | 182 (56.5%) | 164 (42.7%) | |
| Non-smokers | 140 (43.5%) | 220 (57.3%) | |
| Alcohol Drinking Status | < 0.001a | ||
| Ever | 93 (28.9%) | 169 (44.0%) | |
| Never | 229 (71.1%) | 215 (56.0%) | |
| Pathological Type | |||
| Adenocarcinoma | 150 (46.6%) | ||
| Squamous Cell Carcinoma | 98 (30.4%) | ||
| Small Cell Carcinoma | 74 (23.0%) | ||
| TNM Stage | |||
| I-II Stage | 75 (23.3%) | ||
| III-IV Stage | 213 (66.1%) | ||
| Unknown | 34 (10.6%) | ||
| Lymph Node Metastasis | |||
| Positive Cases | 195 (60.6%) | ||
| Negative Cases | 127 (39.4%) |
P a-value: P-value obtained from Chi-squared test.
P b-value: P-value obtained from independent sample t-test.