Methods to assess seasonal effects in epidemiologic studies of infectious diseases -exemplified by application by occurrence of meningococcal disease
Clinical Microbiology and Infection, 06/15/2012
Christiansen CF et al. – Seasonality may be a confounder in studies of infectious disease occurrence when it fulfils the three primary criteria for being a confounder, i.e., when both the disease occurrence and the exposure vary seasonally without seasonality being a step in the causal pathway. In these situations, confounding by seasonality should be controlled as for any confounder.