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Demographic Characteristics in Cases and Controls
| Variables | Subgroups | Cases (N=300) (%) | Controls (N=244) | p |
|---|---|---|---|---|
| Age (years) | 71.43±9.38 | 71.15±9.64 | 0.73 | |
| I | 34 (11.33) | |||
| II | 47 (15.67) | |||
| III | 75 (25.00) | |||
| Clinical stage | IV | 144 (48.00) | ||
| Low | 50 (16.67) | |||
| Differentiation degree | Moderate | 145 (48.33) | ||
| High | 105 (35.00) |
