An Observational Study on Incidence, Natural History and Treatment Patterns of Venous Thromboembolism in Taiwan

An Observational Study on Incidence, Natural History and Treatment Patterns of Venous Thromboembolism in Taiwan

The research question addressed by this study is primarily on the clinical epidemiology of VTE in Taiwan. The study aims to estimate the incidence of VTE and describe natural history of VTE, including long term clinical outcomes in adult Taiwanese population, utilizing population-based electronic health data in Taiwan.

Inclusion Criteria:

• The source population was the adult population in Taiwan. The legal age for definition as an adult (without additional research ethics review requirement) in Taiwan is 20; therefore all National Health Insurance (NHI) enrollees age 20 or older at any time during the study period were evaluated for VTE.

Exclusion Criteria:

• Person-time before an eligible subject turned 20 were not evaluated.
• Study subjects having inconsistent data on gender and unrealistic date of birth (birth year before 1890 and after 2015) were identified and excluded from the analysis.