Table 4.

Risk factors for delirium, logistic regression analysis

Risk factor	Regression coefficient	p value	OR (95% CI)
Charlson comorbidity index (ref. 0)
1	−0.03	0.94	0.97 (0.44–2.15)
2	0.33	0.40	1.39 (0.65–2.94)
≥3	0.63	0.08	1.88 (0.94–3.75)
Prefracture living situation (ref. living independently)
Independently, with help of others	−0.11	0.76	0.90 (0.44–1.81)
Assisted living facility	0.69	0.05	1.99 (1.00–4.00)
Nursing home	0.87	0.02	2.38 (1.18–4.81)
Age (ref. 60–65)
66–75	0.29	0.66	1.33 (0.37–4.77)
76–85	1.05	0.08	2.85 (0.87–9.35)
≥86	1.40	0.02	4.05 (1.23–13.33)
Male sex	0.45	0.10	1.57 (0.93–2.68)
Days to procedure >2	1.15	0.005	3.16 (1.43–6.97)

OR odds ratio, CI confidence interval