Table 1. Demographic characteristics for controls and cases.
| Variables | Case (n = 456) | Controls (n = 400) | P*-value |
|---|---|---|---|
| Age (Y) | |||
| <42, n(%) | 208 (45.6) | 179 (44.75) | 0.87 |
| >42, n(%) | 248 (54.38) | 221 (55.25) | 0.89 |
| Sex | |||
| Male, n(%) | 107 (23.4) | 70 (17.5) | 0.08 |
| Female, n(%) | 349 (76.53) | 330 (82.2) | 0.46 |
| Grade of cancer | |||
| Grade I | 211 (46%) | N/A | 0.08 |
| Grade II | 162 (36%) | N/A | |
| Grade III | 72 (15%) | N/A | |
| Grade IV | 11 (3%) | N/A | |
| Family History | |||
| Yes, n(%) | 32 (7.2) | 6 (1.5) | 0.0004 |
| No, n(%) | 427 (93.7) | 394 (98.5) | 0.0004 |
n = total number; P* = χ2-test.