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Negative controls to detect uncontrolled confounding in observational studies of mammographic screening comparing participants and non-participants
BACKGROUND: When comparing mammography-screening participants and non-participants, estimates of reduction in breast-cancer mortality may be biased by poor baseline comparability. We used negative controls to detect uncontrolled confounding. METHODS: We designed a closed cohort of Danish women invit...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Oxford University Press
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7394947/ https://www.ncbi.nlm.nih.gov/pubmed/32211885 http://dx.doi.org/10.1093/ije/dyaa029 |