Erratum: Interrupted time series regression for the evaluation of public health interventions: A tutorial (International Journal of Epidemiology (2017) 46 (348–355) DOI: 10.1093/ije/dyw098)

Abstract

The originally published version of this article contained an algebraic definition of the regression model for interrupted time series (ITS) that could lead to erroneous interpretations of the estimated parameters. This model was presented in the equation at page 351, right column, and the following text. We provide here a more accurate definition.