Table 1 Inclusion criteria
From: The association between air travel and deep vein thrombosis: Systematic review & meta-analysis
Incidence of DVT during air flight | |
|---|---|
Design | Any design other than case report |
Population | Any individuals who have travelled by air regardless of sex, age or risk status |
Exposure | Air travel (short or prolonged flight) |
Comparator | Not required |
Outcomes | Asymptomatic or symptomatic VTE confirmed by clinical or diagnostic methods, or related mortality |
Air flight as a risk factor for DVT | |
Design | Any comparative study design i.e. randomised controlled trial, prospective or retrospective cohort study or case control study. |
Population | Any individuals who have travelled by air regardless of sex, age or risk status. |
Exposure | Air travel (short or prolonged flight) |
Comparator | No air travel |
Outcomes | Asymptomatic or symptomatic VTE confirmed by clinical or diagnostic methods, pulmonary embolus (PE) or related mortality up to month after exposure |