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Table 3 Univariate analysis of the variables

From: Incidence and risk factors of postoperative delirium in the elderly patients with hip fracture

Variable

B

SE

Wals

df

p valve

OR

95% CI for exp

(B) OR

Lower

Upper

Age

0.086

0.033

6.727

1

0.009

1.090

1.021

1.163

Hospitalization

0.101

0.025

15.958

1

0.000

1.106

1.053

1.162

Gender

0.207

0.454

0.207

1

0.649

1.229

0.505

2.992

Hypertension

0.388

0.454

0.730

1

0.393

1.474

0.605

3.590

Diabetes

− 1.110

0.466

5.664

1

0.017

0.330

0.132

0.822

Coronary heart disease

0.408

0.505

0.652

1

0.419

1.504

0.559

4.408

Cerebral infarction

0.448

0.603

0.551

1

0.458

1.564

0.480

5.099

Albumin infusion

0.050

0.021

5.411

1

0.020

1.051

1.008

1.096

Preoperative Hospitalization

0.146

0.093

2.440

1

0.118

1.157

0.964

1.388

Preoperative HCT

− 0.015

0.068

0.047

1

0.828

0.985

0.863

1.125

Postoperative HCT

− 0.022

0.81

0.073

1

0.787

0.978

0.835

1.146

BMI

− 0.085

0.072

1.398

1

0.237

0.919

0.799

1.057

Blood transfusion volume

− 0.172

0.182

0.892

1

0.345

0.842

0.589

1.203

Preoperative leucocyte count

0.163

0.100

2.267

1

0.105

1.177

0.967

1.432

Preoperative albumin

− 0.050

0.079

0.401

1

0.526

0.951

0.815

1.110

Preoperative TP

− 0.016

0.051

0.105

1

0.746

0.984

0.890

1.087

NYHA

0.543

0.323

2.825

1

0.093

1.722

0.914

3.245

ASA

1.555

0.446

12.141

1

0.000

4.735

1.975

11.355

Anesthesia

− 0.107

0.462

0.054

1

0.817

0.899

0.363

2.224

Operation

− 0.111

0.479

0.053

1

0.817

0.895

0.350

2.287

The operation time

0.014

0.013

1.162

1

0.281

1.014

0.989

1.040

The anesthesia time

0.016

0.010

2.511

1

0.113

0.984

0.965

1.004

Intraoperative blood loss

0.006

0.003

3.522

1

0.061

1.006

1.000

1.013

Postoperative Na+

0.063

0.055

1.313

1

0.252

0.939

0.843

1.046

Postoperative K+

0.038

0.449

0.007

1

0.932

0.962

0.399

2.321

Postoperative leucocyte count

0.007

0.099

0.004

1

0.947

1.007

0.829

1.223

Postoperative Hb

0.160

0.224

0.515

1

0.473

1.174

0.758

1.820

DVT

0.338

0.516

0.428

1

0.513

1.402

0.509

3.856

  1. ASA American Society of Anesthesiologists, NYHA New York Heart Association, BMI body mass index, DVT deep venous thrombosis, HCT hematocrit, Hb hemoglobin, TP total protein, CI confidence interval, OR odds ratio, SE standard error
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Journal of Orthopaedic Surgery and Research

ISSN: 1749-799X