Compression stockings prevent DVT in airline passengers

High-quality evidence showed airline passengers can expect a substantial reduction in their risk of a symptomless DVT if they wear compression stockings. Wearing stockings might reduce the incidence of this outcome from a few tens per 1000 passengers to 2 or 3 per 1000. There was moderate-quality evidence that superficial vein thrombosis might be reduced if passengers wore compression stockings. Low-quality evidence showed passengers who wore stockings also experienced less oedema in their legs. No significant adverse effects were reported. However, it was not possible to identify whether these effects of wearing stockings translated into effects on outcomes such as death, pulmonary embolism and symptomatic DVT.