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Association between vaccination status, symptom identification and healthcare use: Implications for test negative design observational studies

To test the internal validity of the test-negative design (TND) by investigating associations between maternal influenza vaccination, and new virus detection episodes (VDEs), acute respiratory illness, and healthcare visits in their children.

Citation:
El-Heneidy A, Grimwood K, Lambert SB, Sarna M, Ware RS. Association between vaccination status, symptom identification and healthcare use: Implications for test negative design observational studies. Vaccine. 2022.

Keywords:
Acute respiratory illness; Healthcare seeking behaviour; Influenza vaccination; Respiratory viruses; Test-negative design

Abstract:
To test the internal validity of the test-negative design (TND) by investigating associations between maternal influenza vaccination, and new virus detection episodes (VDEs), acute respiratory illness, and healthcare visits in their children.