Table 6 Rates of Delirium and Multivariate Regression of Risk Factors for Delirium by Procedure and Indication

Delirium, n (%)

1,007 (26.9)

69 (22.4)

174 (4.8)

 < 0.001

Hemiarthroplasty for Proximal Femur Fracture

OR

95% CI

p

 Fall in the Last 6 Months

0.841

(0.701, 1.009)

0.062

 Dementia

4.362

(3.692, 5.155)

 < 0.001

 CHF

1.149

(0.897, 1.471)

0.272

 Hypertension Requiring Medications

0.905

(0.761, 1.077)

0.260

 Dialysis

1.258

(0.701, 2.260)

0.442

 General Anesthesia

1.156

(0.980, 1.363)

0.086

 Total Hospital Length of Stay Days

1.075

(1.060, 1.090)

 < 0.001

THA for Proximal Femur Fracture

OR

95% CI

p

 Fall in the Last 6 Months

1.505

(0.856, 2.647)

0.156

 Dementia

6.133

(3.614, 10.406)

 < 0.001

 CHF

0.913

(0.405, 2.058)

0.826

 Hypertension Requiring Medications

0.933

(0.652, 1.335)

0.703

 General Anesthesia

1.339

(0.946, 1.895)

0.100

 Total Hospital Length of Stay Days

1.204

(1.157, 1.252)

 < 0.001

THA for OA

OR

95% CI

p

 Fall in the Last 6 Months

1.505

(0.760, 2.982)

0.241

 Dementia

5.652

(2.918, 10.947)

 < 0.001

 CHF

0.517

(0.145, 1.845)

0.309

 Hypertension Requiring Medications

1.353

(0.708, 2.584)

0.360

 General Anesthesia

0.764

(0.396, 1.471)

0.420

 Total Hospital Length of Stay Days

1.044

(0.971, 1.123)

0.241