Table 3 Frequencies of joint forms. P-values derived from Chi2 tests.
Joint form | Males | Females | p |
|---|---|---|---|
Typical joint form | 85.9% (358/417) | 37.9% (152/401) | < 0.001 |
Accessory joint | 4.1% (17/417) | 12.7% (51/401) | < 0.001 |
Iliosacral complex | 1.2% (5/417) | 4.5% (14/401) | 0.036 |
Bipartite ilium | 0.7% (3/417) | 21.9% (88/401) | < 0.001 |
Crescent-shaped ilium | 0.7% (3/417) | 3.0% (12/401) | 0.018 |
Semicircular defects | 0.2% (1417) | 0.2% (1/401) | > 0.999 |
Sacral ossification centers | 0.5% (2/417) | 0.5% (2/401) | > 0.999 |
Other joint form | 6.7% (28/417) | 20.2% (81/401) | < 0.001 |
