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Limitations of the incidence density ratio as approximation of the hazard ratio
BACKGROUND: Incidence density ratios (IDRs) are frequently used to account for varying follow-up times when comparing the risks of adverse events in two treatment groups. The validity of the IDR as approximation of the hazard ratio (HR) is unknown in the situation of differential average follow up b...
| Autores principales: | , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
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BioMed Central
2019
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| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6688349/ https://www.ncbi.nlm.nih.gov/pubmed/31395087 http://dx.doi.org/10.1186/s13063-019-3590-2 |