Table 4 Relationship between blood transfusion and preoperative comorbidities

Acquired immune deficiency syndrome

120 (0.1%)

24 (0.2%)

0.183

1.208

0.767–1.903

0.416

Alcohol abuse

1283 (1.3%)

290 (1.9%)

<0.001

1.078

0.940–1.237

0.284

Iron deficient anemia

8283(8.3%)

3277 (22.0%)

<0.001

2.433

2.320–2.551

<0.001

Rheumatoid arthritis/collagen vascular diseases

5725 (5.7%)

1262 (8.5%)

<0.001

1.287

1.204–1.376

<0.001

Chronic blood loss anemia

1008 (1.0%)

439 (2.9%)

<0.001

2.722

2.418–3.063

<0.001

Congestive heart failure

5042 (5.0%)

1619 (10.9%)

<0.001

1.402

1.312–1.497

<0.001

Chronic pulmonary disease

18,961 (18.9%)

3113 (20.9%)

<0.001

0.945

0.903–0.989

0.015

Coagulopathy

2798 (2.8%)

1165 (7.8%)

<0.001

1.895

1.754–2.047

<0.001

Depression

17,718 (17.7%)

2892 (19.4%)

<0.001

0.991

9.45–1.038

0.693

Diabetes, uncomplicated

19,239 (19.2%)

3511(23.6%)

<0.001

1.151

1.100-1.203

<0.001

Diabetes with chronic complications

5747 (5.7%)

1263 (8.5%)

<0.001

1.010

0.941–1.085

0.078

Drug abuse

1554 (1.6%)

311 (2.1%)

<0.001

1.079

0.948–1.229

0.249

Hypertension

67,080 (67.0%)

10,927 (73.3%)

<0.001

0.981

0.936–1.028

0.415

Hypothyroidism

16,547 (16.5%)

2870 (19.3%)

<0.001

1.035

0.988–1.085

0.144

Liver disease

2448 (2.4%)

583 (3.9%)

<0.001

1.033

0.933–1.142

0.534

Lymphoma

292 (0.3%)

118 (0.8%)

<0.001

1.998

1.593–2.506

<0.001

Fluid and electrolyte disorders

10,306 (10.3%)

3555 (23.9%)

<0.001

1.843

1.758–1.931

<0.001

Metastatic cancer

156 (0.2%)

73 (0.5%)

<0.001

1.986

1.473–2.678

<0.001

Other neurological disorders

3877 (3.9%)

1061 (7.1%)

<0.001

1.348

1.252–1.452

<0.001

Obesity

28,611 (28.6%)

4164 (27.9%)

1.22

0.809

0.776–0.843

<0.001

Paralysis

307 (0.3%)

107 (0.7%)

<0.001

1.715

1.358–2.165

<0.001

Peripheral vascular disorders

2580 (2.6%)

703 (4.7%)

<0.001

1.311

1.197–1.435

<0.001

Psychoses

3435 (3.4%)

691 (2.4%)

<0.001

1.153

1.056–1.259

0.002

Pulmonary circulation disorders

1374 (1.4%)

500 (3.4%)

<0.001

1.364

1.218–1.528

<0.001

Renal failure

7465 (7.5%)

2344 (15.7%)

<0.001

1.454

1.374–1.539

<0.001

Solid tumor without metastasis

638 (0.6%)

158 (1.1%)

<0.001

1.228

1.020–1.479

0.003

Peptic ulcer disease excluding bleeding

192 (0.2%)

27 (0.2%)

0.785

0.84

0.528–1.222

0.307

Valvular disease

3666 (3.7%)

959 (6.4%)

<0.001

1.239

1.145–1.341

<0.001

Weight loss

1267 (1.3%)

664 (4.5%)

<0.001

1.955

1.763–2.167

<0.001