Table 2.

Demographic characteristics of pre- and postintervention groups

Characteristic	Group; mean ± SD*		p value
	Preintervention, n = 3535	Postintervention, n = 3007
Sex, % female	72.1	70.6	0.18
Age, yr	81.5 ± 9.9	81.4 ± 10.4	0.75
Men	78.6 ± 10.9	79.0 ± 10.8	0.49
Women	82.6 ± 9.2	82.4 ± 10.1	0.53
Femoral neck fracture, %	50.6	51.8	0.28
Arthroplasty, %	35.5	38.1	0.035
Patients with ≥ 1 preadmission comorbidities, %	34.9	39.8	< 0.001

SD = standard deviation.

^*Unless otherwise indicated.