Total

With Post-Discharge VTE N = 880 (0.9%)

Without Post-Discharge VTE N = 95,990 (99.1%)

P-Value

N = 96,870

Variables

N (%)

N (%)

N (%)

Diagnosis^*

n = 71,267

n = 623

n = 70,644

Femur head or neck fracture

30,390 (42.6%)

235 (37.7%)

30,155 (42.7%)

Pertrochanteric fracture

40,877 (57.4%)

388 (62.3%)

40,489 (57.3%)

0.012

ASA Classification^*

n = 96,710

n = 879

n = 95,831

Class I and II

17,197 (17.8%)

157 (17.9%)

17,040 (17.8%)

0.213

Class III

60,453 (62.5%)

569 (64.7%)

59,884 (62.5%)

Class IV and V

19,060 (19.7%)

153 (17.4%)

18,907 (19.7%)

Procedure Type

Hemiarthroplasty

34,283 (35.4%)

282 (32.0%)

34,001 (35.4%)

DHS

11,289 (11.7%)

76 (8.6%)

11,213 (11.7%)

< 0.001

IMN

51,298 (53.0%)

522 (59.3%)

50,776 (52.9%)

Days from admission to operation^*

n = 96,700

n = 880

n = 95,820

0.503

1.1 ± 1.2

1.07 ± 0.98

1.10 ± 1.2

Days from operation to discharge^*

n = 95,028

n = 879

n = 94,149

< 0.001

4.75 ± 3.22

4.27 ± 2.60

4.76 ± 3.22

Elective Surgery^*

5,686/96,729

46/887

5,640/95,852

0.468

-5.90%

-5.20%

-5.90%

Duration of procedure*

n = 96,860

n = 880

n = 95,980

< 60 minutes

52,810 (54.5%)

447 (50.8%)

52,363 (54.6%)

0.027

+ 60 minutes

44,050 (45.5%)

443 (49.2%)

43,617 (45.4%)

Postop weight-bearing^*

9,718/40,084

92/362

9,626/39,722

0.625

-24.20%

-25.40%

-24.20%

Surgical Complications

Stroke

222 (0.2%)

15 (1.7%)

209 (0.2%)

< 0.001

Myocardial infarction

530 (0.5%)

40 (4.5%)

490 (0.5%)

< 0.001

Readmission

8,005/78,118

480/802

7,525/77,316

< 0.001

-10.20%

-59.90%

-9.70%

Mortality

5,252 (5.4%)

64 (7.3%)

5,188 (5.4%)

0.018

Extended DVT prophylaxis^*

27,531/44,640

256/389

27,275/44,251

0.095

-61.70%

-65.80%

-61.60%

Medical co-management^*

39804/45,005

368/393

39,436/44,612

0.001

-88.40%

-93.60%

-88.40%

Hip fracture care program^*

26,210/45,005

199/393

26,011/44,612

0.002

-58.20%

-50.60%

-58.30%

Pathologic fracture^*

2,100/45,005

27/393

2,073/44612

0.048

-4.70%

-6.90%

-4.60%