Air travel and the risk of deep vein thrombosis

摘要: Background:The magnitude of the risk venous thromboembolism (VTE) following air travel has been difficult to resolve due lack adequate data. We determine association more precisely by using a large dataset and an improved method analysis. Method:Data on air-travel history for each 5,196 patients hospitalised VTE in Western Australia from 1981 1999 is analysed log-linear regression model probability that flight triggers baseline hazard rate hospitalisation. Results:The being triggered day international relative flight-free 29.8 (95% CI 22.4-37.3). Evidence this depends age weak (p=0.06), but absolute clearly age. The annual individual taking one flight, compared with same no estimated be 1.079. median time hospital admission 4.7 days 3.8-5.6) 95th percentile 13.3 10.3-16.8). Conclusions:Evidence between hospitalisation strong passengers should advised ways minimise during long flights. While risk, it must remembered very small applies only unobserved triggering deep vein thrombosis episode travel; consequent occurs numerous ensuing days.