Age (65-74) N = 3811,

n (%)

Age (75-89)

N = 10467,

n (%)

P value

Gender

Male

1358 (35.6)

2952 (28.2)

< 0.001

Female

2453 (64.4)

7515 (71.8)

Race

White

3013 (79)

8149 (77.9)

< 0.001

African American

170 (4.5)

282 (2.7)

Others

93 (2.5)

293 (2.8)

Unknow

535 (14)

1743 (16.6)

Body mass index^a

< 18.5

430/3695 (11.6)

1228/9968 (12.3)

< 0.001

18.5-24.9

1396/3695 (37.8)

4526/9968 (45.4)

25-29.9

993/3695 (26.9)

2726/9968 (27.3)

≥ 30, N

876/3695 (23.7)

1488/9968 (14.9)

Functional status^a

Independent

3304/3801 (86.9)

8147/10428 (78.1)

< 0.001

Partially Dependent

428/3801 (11.3)

1896/10428 (18.2)

Totally Dependent

69/3801 (1.8)

384/10428 (3.7)

ASA class

ASA I and II

841 (22.1)

1475 (14.1)

< 0.001

ASA III

2326 (61)

6805 (65)

ASA IV and V

644 (16.9)

2187 (20.9)

Transfusion

917 (23.9)

3461 (32.9)

< 0.001

Pneumonia

130 (3.4)

406 (3.9)

0.19

Stroke

23 (0.6)

96 (0.9)

0.07

Myocardial infarction

48 (1.3)

223 (2.1)

< 0.001

Deep vein thrombosis

36 (0.9)

138 (1.3)

0.07

Pulmonary embolism

20 (0.5)

79 (0.8)

0.14

Urinary tract infarctions

123 (3.2)

431 (4.1)

0.01

Renal failure/insufficiency

38 (1)

82 (0.8)

0.22

Sepsis

38 (1)

112 (1.1)

0.7

Surgical site infections

30 (0.8)

70 (0.7)

0.45

Readmission

285 (11.6)

885 (12.6)

0.16

Revision surgery

70 (1.8)

198 (1.9)

0.83

Mortality

65 (1.7)

224 (2.1)

0.1