Table 2.

Relationship between reoperation within 1 year postoperatively and patient characteristics in the 2,000 patients who were operated before or after implementation of the algorithm

		Multiple Cox regression analysis
	n (%)	HR	(95% CI)	p-value
Age (years) a	83 (75–89)	1.0	(1.0–1.0)	0.002
Female gender	1,491 (75)	1.2	(0.9–1.5)	0.3
ASA score III–IV	808 (40)	1.2	(0.9–1.5)	0.2
Prefracture NMS 0–5	964 (48)	0.8	(0.6–1.0)	0.08
Low cognitive function	584 (29)	0.8	(0.6–1.1)	0.2
Surgical algorithm	1,000 (50)	0.7	(0.5–0.8)	< 0.001

^a Age presented as median (interquartile range).

HR: hazard ratio; ASA: American Society of Anaesthesiologists; NMS: New Mobility score.