Table I.
Clinical characteristics of French Canadian participants according to histological types of lung cancer
| All subjects (n = 420) | Adenocarcinoma (n = 240) | Squamous (n =108) | P valuesa | |
|---|---|---|---|---|
| Gender (male:female) | 235:185 (56.0% m) | 111:129 (46.3% m) | 85:23 (78.7% m) | 3.2×10–8 |
| Age (years) | 63.4±10.0 | 62.8±9.2 | 67.5±8.5 | 4.6×10–6 |
| Body mass index (kg/m2) | 26.7±5.3 | 26.3±4.8 | 26.4±5.0 | 0.78 |
| Smoking status | 0.04 | |||
| Never smokers | 37 (8.8%) | 22 (9.2%) | 2 (1.9%) | |
| Former smokers | 289 (68.8%) | 165 (68.8%) | 78 (72.2%) | |
| Current smokers | 94 (22.4%) | 53 (22.1%) | 28 (25.9%) |
Values are mean ± standard deviation.
aStatistical comparisons between patients with adenocarcinoma and squamous cell carcinoma were performed using t-tests for continuous variables and chi-square tests for categorical variables.