**3.3 Summary of the recommendations in categories**

Six major categories, included in high-quality CPGs, were considered important to contextualize the recommendations. There were: 1. patient involvement, 2. risk of VTE and bleeding, 3. indication and strategy of pharmacological prophylaxis in acute ill medical patients, 4. indication and strategy of pharmacological prophylaxis in orthopedic surgical patients, 5. indication and strategy of pharmacological prophylaxis in no-orthopedic surgical patients, 6. monitoring adverse effects.
