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Table 2 Cut-off of the critical SI angle (CSIA). Results were adjusted for age and sex as possible confounders

From: Feasibility of iliosacral screw placement in patients with upper sacral dysplasia

 Screw placement impossible
n = 21
Screw placement feasible
n = 135
Unadjusted RR (95% CI, p value)Adjusted RR (95% CI, p value)
CSIA ≥ −14.2°3 (14.3%)116 (85.9%)36.6 (9.8 to 136.4)
p < 0.001
37.9 (10.0 to 143.5)
p < 0.001
  1. RR relative risk