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Immortal time bias for life-long conditions in retrospective observational studies using electronic health records
BACKGROUND: Immortal time bias is common in observational studies but is typically described for pharmacoepidemiology studies where there is a delay between cohort entry and treatment initiation. METHODS: This study used the Clinical Practice Research Datalink (CPRD) and linked national mortality da...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8962148/ https://www.ncbi.nlm.nih.gov/pubmed/35350993 http://dx.doi.org/10.1186/s12874-022-01581-1 |