Risk of injury to rectum:
(1) widened symphysis (relative risk 4.71, p < 0.0001)
(2) fracture of the sacroiliac joint (relative risk 3.3, p = 0.009)
(3) fracture of the sacrum
Risk of injury to urinary bladder:
(1) widened symphysis (relative risk 7.22, p < 0.001)
(2) fracture of the sacroiliac joint (relative risk 6.04, p < 0.001)
(3) fracture of the sacrum (relative risk 4.25, p = 0.002)
Risk of injury to the urethra:
(1) widened symphysis (relative risk 6.42, p = 0.019)
(2) fracture of the inferior ramus (relative risk 11.71, p = 0.007)