Table 3 Cox proportional hazard models of ninety-day postoperative mortality by variables.

Sex

Male

264

2.02 (1.75–2.32)

 < 0.0001

Female

854

1 (reference)

Age

50–59 yr

23

1 (reference)

60–69 yr

208

1.79 (1.16–2.76)

 < 0.0001

70–79 yr

587

3.81 (2.50–5.78)

 < 0.0001

 ≥ 80 yr

300

10.40 (6.79–15.94)

 < 0.0001

AIDS/HIV

No

1117

1 (reference)

Yes

1

2.16 (0.30–15.40)

0.4412

Cerebrovascular disease

No

819

1 (reference)

Yes

299

1.84 (1.53–2.20)

0.0003

Congestive heart failure

No

978

1 (reference)

Yes

140

1.84 (1.53–2.20)

 < 0.0001

Chronic pulmonary disease

No

847

1 (reference)

Yes

271

0.94 (0.82–1.07)

0.3409

Dementia

No

1032

1 (reference)

Yes

86

1.17 (0.93–1.46)

0.183

Diabetes without chronic complication

No

886

1 (reference)

Yes

232

0.84 (0.72–0.98)

0.0279

Diabetes with chronic complication

No

954

1 (reference)

Yes

164

0.90 (0.75–1.08)

0.2639

Hemiplegia or paraplegia

No

1109

1 (reference)

Yes

9

0.52 (0.27–1.00)

0.0513

Mild liver disease

No

744

1 (reference)

Yes

374

0.95 (0.83–1.07)

0.3916

Moderate or severe liver disease

No

1117

1 (reference)

Yes

1

5.55 (2.29–13.41)

0.0001

Any malignancy, Including leukemia and lymphoma

No

1118

1 (reference)

Yes

0

Metastatic solid tumor

No

1117

1 (reference)

Yes

1

1.63 (0.23–11.62)

0.6265

Myocardial infarction

No

1078

1 (reference)

Yes

40

1.91 (1.39–2.63)

 < 0.0001

Peripheral vascular disease

No

961

1 (reference)

Yes

157

1.08 (0.91–1.28)

0.411

Peptic ulcer disease

No

622

1 (reference)

Yes

496

0.98 (0.87–1.10)

0.7277

Rheumatologic disease

No

873

1 (reference)

Yes

245

1.00 (0.87–1.15)

0.996

Renal disease

No

1083

1 (reference)

Yes

35

2.49 (1.77–3.50)

 < 0.0001