Diagnosed with DVT

Joint Surgery

Spinal Surgery

Gynecology Department

Urology Surgery

total

Control

Intervention

Control

Intervention

Control

Intervention

Control

Intervention

Control

Intervention

YES (n)

4

1

1

0

4

1

1

0

10

2

NO (n)

227

201

74

101

204

304

249

164

754

770

χ²

1.444

1.354

3.260

3.803

5.460

P

0.230

0.245

0.071

0.079

0.019