The review found no eligible studies for this question.
It is very uncertain whether anticoagulants changes deep vein thrombosis compared with no treatment (very low certainty).
It is very uncertain whether anticoagulants changes pulmonary embolism compared with no treatment (very low certainty).
It is very uncertain whether anticoagulants changes major bleeding compared with no treatment (very low certainty).
The review found no eligible studies for this question.
It is very uncertain whether anticoagulants changes all‐cause mortality compared with no treatment (very low certainty).
The review found no eligible studies for this question.
Higher‐dose anticoagulants showed no clear difference in all‐cause mortality compared with lower‐dose anticoagulants (high certainty).
It is very uncertain whether higher‐dose anticoagulants changes necessity for additional respiratory support compared with lower‐dose anticoagulants (very low certainty).
The review found no eligible studies for this question.
Higher‐dose anticoagulants showed no clear difference in deep vein thrombosis compared with lower‐dose anticoagulants (low certainty).
Higher‐dose anticoagulants probably leads to lower pulmonary embolism compared with lower‐dose anticoagulants (moderate certainty).
Higher‐dose anticoagulants probably leads to higher major bleeding compared with lower‐dose anticoagulants (moderate certainty).
Higher‐dose anticoagulants leads to higher adverse events (minor bleeding) compared with lower‐dose anticoagulants (high certainty).
Direct oral anticoagulants (DOAC) showed no clear difference in all strokes and systemic embolic events compared with warfarin (moderate certainty).
Direct oral anticoagulants (DOAC) showed no clear difference in major bleeding compared with warfarin (low certainty).
Direct oral anticoagulants (DOAC) showed no clear difference in myocardial infarction compared with warfarin; GRADE not reported.
Direct oral anticoagulants (DOAC) showed no clear difference in minor bleeding compared with warfarin (low certainty).
Direct oral anticoagulants (DOAC) showed no clear difference in gastrointestinal bleeding compared with warfarin (moderate certainty).
Direct oral anticoagulants (DOAC) probably leads to lower intracranial haemorrhage compared with warfarin (moderate certainty).