approached significanceP = .07
Interestingly, both male rhBMP2/no_rhBMP2 groups had higher rates of urinary retention when compared with females (rhBMP2 14.6% [males] vs 6.4% [female] and no_rhBMP2 11.1% [males] vs 4.2% [females], respectively); however, only rhBMP2 females had statistically higher rates of urinary retention vs no_rhBMP2 females ( P < .05), though rhBMP2 males approached significance ( P = .07).