Table 1 Characteristics of 316 appendiceal cancer cases seen at Mayo Clinic between 1995 and July 2010
From: Primary appendiceal mucinous adenocarcinoma in two first-degree relatives: case report and review
|  | ALL CASES n = 316 |    MALES n = 131 |    FEMALES n = 185 |    P-VALUE |
|---|---|---|---|---|
Positive family history, n (%) | 0 (0) | 0 (0) | 0 (0) | 1.0 |
Histology, n (%) | Â | Â | Â | 0.01 |
   - Neuroendocrine/Carcinoid | 120 (38) | 42 (32) | 78 (42) |  |
   - Adenocarcinoma | 185 (59) | 88 (67) | 97 (52) |  |
   - Other | 11 (3) | 1 (1) | 10 (5) |  |
Age at diagnosis (mean ± std dev) | 49.8 ± 16.4 | 52.8 ± 15.4 | 47.7 ± 16.8 | 0.006 |
   - Neuroendocrine/Carcinoid | 40.1 ± 16.4 | 45.0 ± 15.5 | 37.3 ± 16.3 | 0.01 |
   - Adenocarcinoma | 55.8 ± 13.4 | 56.6 ± 14.0 | 55.1 ± 12.8 | 0.43 |
   - Other | 54.8 ± 12.3 | 51 | 55.3 ± 13.0 | 0.77 |