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Table 3 Risk factors of patients and prophylaxis according to risk categories in guidelines

From: Use of venous thromboprophylaxis and adherence to guideline recommendations: a cross-sectional study

Risk category Low risk Moderate risk High risk Overall Test significance
Number of patients (%) 100 (25) 257 (65) 40 (10) 397 (100)  
Mean age (SD) 47.8 (18) 63.2 (15) 67.8 (11) 60 (17) p < 0.001
Mean number risk factors (SD) 1 (0.7) 2.9 (1.2) 4.2 (1) 2.6 (1.4) p < 0.0001
Contra-indications1 n (%) 17 (17) 25 (10) - 42 (11) p < 0.01
Prophylaxis n (%) 11 (11) 184 (72) 36 (90) 231 (58) p < 0.001
Surgical prophylaxis2 n (%) 2 (12) 89 (90) 29 (91) 120 (81) p < 0.0001
Non-surgical prophylaxis3 N (%) 9 (11) 95 (60) 7 (87.5) 111(45) p < 0.0001
  1. 1 Contraindications to receive heparins 2 Prophylaxis in patients undergoing surgery 3 Prophylaxis in patients not undergoing surgery