Flexible modelling of risk factors on the incidence of pneumonia in young children in South Africa using piece-wise exponential additive mixed modelling

Abstract Introduction Recurrent episodes of pneumonia are frequently modeled using extensions of the Cox proportional hazards model with the underlying assumption of time-constant relative risks measured by the hazard ratio. We aim to relax this assumption in a study on the effect of factors on the...

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Bibliographic Details
Main Authors: Jordache Ramjith, Kit C.B. Roes, Heather J. Zar, Marianne A. Jonker
Format: Article
Published: BMC 2021-01-01
Series:BMC Medical Research Methodology
Online Access:https://doi.org/10.1186/s12874-020-01194-6