borderline significanceP = 0.1
When separated by osteotomy type, the RF incidence rate trended higher if operation included PSO (6/37, 16.2 %, 95 % Cl: 4.3 %; 28.1 %) versus SPO only (1/38, 2.6 %, 95 % Cl: 0 %; 7.7 %), but this difference was found to have borderline significance ( OR = 7.2 95 % CI: 0.8; 62.7, P = 0.1).