what is a multiplicative model
Additive and multiplicative models are two alternative approaches to modeling effect of risk factors on disease. In additive models, riskâor disease incidenceâchanges by some fixed amount when a risk factor is present.n contrast, multiplicative models represent the changes in risk as a proportion of the baseline risk. The statement âIf you take up X, you will double your risk of Y â ... Users without a subscription are not able to see the full content on this page. Please, subscribe or login to access all Methods content.