Table 5 Demographics of proximal femur fracture vs OA patients

Sex, n (%)

 < 0.001

 Male

3,522 (34.7)

16,505 (45.1)

 Female

6,637 (65.3)

20,120 (54.9)

Age, mean ± SD

75.1 ± 11.2

66.0 ± 10.5

 < 0.001

BMI, mean ± SD

21.7 ± 10.4

30.3 ± 6.7

 < 0.001

Race, n (%)

 < 0.001

 White

6,134 (88.4)

24,222 (85.4)

 Black or African American

438 (6.3)

3,038 (10.7)

 Asian

246 (3.5)

641 (2.3)

 Other Race

122 (1.8)

475 (1.7)

Hispanic Ethnicity, n (%)

406 (5.7)

1,448 (5.1)

0.031

Past Medical History, n (%)

 Dementia

2,330 (34.0)

244 (3.0)

 < 0.001

 Diabetes

1,756 (17.3)

4,409 (12.0)

 < 0.001

 Smoker

1,243 (12.2)

3,613 (9.9)

 < 0.001

 Independent Functional Status

7,916 (78.8)

35,945 (98.4)

 < 0.001

 Ventilator Dependent

17 (0.2)

0 (0)

 < 0.001

 COPD

932 (9.2)

1,277 (3.5)

 < 0.001

 Ascites

29 (0.3)

4 (0)

 < 0.001

 CHF

920 (9.1)

749 (2.0)

 < 0.001

 Hypertension Requiring Medications

6,223 (61.3)

19,794 (54.0)

 < 0.001

 Dialysis

193 (1.9)

42 (0.1)

 < 0.001

 Disseminated Cancer

269 (2.6)

84 (0.2)

 < 0.001

 Immunosuppressive Therapy

526 (5.2)

1,328 (3.6)

 < 0.001

 Bleeding Disorder

1,322 (13.0)

644 (1.8)

 < 0.001

 Preoperative pRBC Transfusion < 72 Hours Before Surgery

198 (1.9)

11 (0)

 < 0.001

Presence of Sepsis

 < 0.001

 No Sepsis

8,829 (87.0)

36,500 (99.7)

 SIRS

1,261 (12.4)

128 (0.3)

 Sepsis

63 (0.6)

0 (0)

 Septic Shock

7 (0.1)

0 (0)

Lives Alone, n (%)

1,535 (27.6)

2,322 (30.2)

0.001

Fall Within 6 Months, n (%)

4,640 (69.5)

452 (6.1)

 < 0.001

Mortality Probability, mean ± SD

0.045 ± 0.064

0.001 ± 0.002

 < 0.001

Morbidity Probability, mean ± SD

0.095 ± 0.054

0.027 ± 0.012

 < 0.001

Procedure, n (%)

 < 0.001

 Hemiarthroplasty

8,440 (83.1)

–

 THA

1,720 (16.9)

36,628 (100)

ASA Class, n (%)

 < 0.001

 1

123 (1.2)

1,102 (3.0)

 2

1,977 (19.5)

18,545 (50.7)

 3

6,115 (60.5)

16,247 (44.4)

 4

1,898 (18.8)

676 (1.8)

General Anesthesia, n (%)

6,868 (67.6)

13,297 (36.3)

 < 0.001

Operative Time Minutes, mean ± SD

80.8 ± 39.9

92.4 ± 36.1

 < 0.001

Proximal Femur Fracture (n = 10,160)

Osteoarthritis (n = 36,628)

p

Sodium Level, n (%)

 < 0.001

 Hyponatremia

1,753 (17.5)

1,449 (4.3)

 Normal Sodium

8,254 (82.3)

31,938 (95.6)

 Hypernatremia

26 (0.3)

15 (0)

Leukocytosis, n (%)

2,255 (22.4)

565 (1.7)

 < 0.001

Low Platelets, n (%)

1,177 (11.7)

708 (2.1)

 < 0.001

Anemia, n (%)

 < 0.001

 No Anemia

5,112 (50.8)

30,083 (87.6)

 Mild Anemia

2,767 (27.5)

3,535 (10.3)

 Moderate/Severe Anemia

2,185 (21.7)

720 (2.1)

Dehydration, n (%)

 < 0.001

 Not Dehydrated

4,550 (48.4)

17,534 (57.4)

 Moderately Dehydrated

2,273 (24.2)

7,314 (23.9)

 Severely Dehydrated

2,572 (27.4)

5,696 (18.6)

Hypoalbuminemia, n (%)

2,368 (35.3)

464 (2.3)

 < 0.001

High Alkaline Phosphatase, n (%)

455 (7.3)

397 (2.3)

 < 0.001

PTT, mean ± SD

29.8 ± 7.1

29.3 ± 5.5

 < 0.001

INR, mean ± SD

1.1 ± 0.2

1.0 ± 0.2

 < 0.001