Immigration, region of origin, and the epidemiology of venous thromboembolism: A population-based study.

ABSTRACT:

Background

Venous thromboembolism (VTE) epidemiology has been mainly studied in populations largely of European ancestry.

Objectives

To assess the epidemiology of VTE in immigrants to Ontario, Canada.

Patients/methods

We conducted a population-based retrospective cohort study using linked health-care and administrative databases. We included 1 195 791 immigrants to Ontario and 1 195 791 nonimmigrants, matched on age, sex, and place of residence. The main exposure was ethnicity according to world region of origin, using a previously validated algorithm. The main outcome was incident onset of VTE during the period of observation. Risk ratios (RR) were calculated using Poisson regression models.

Results

The incidence rate (IR) of VTE was lower among immigrants (0.

SUBMITTER: Lazo-Langner A 

PROVIDER: S-EPMC6046583 | biostudies-literature | 2018 Jul

REPOSITORIES: biostudies-literature