This suggests that sicker people get more disabled by surgery. Which we already knew. (Similarly institutionalised or not independent = sicker, having comorbidi

This suggests that sicker people get more disabled by surgery. Which we already knew. (Similarly institutionalised or not independent = sicker, having comorbidities, low fall injury suggests balance problems or advanced osteoporosis = sicker, just older = likely sicker) But it does point slightly towards surgery bring beneficial (fixation reduced risk)