Figure 3From: Modeling gradually changing seasonal variation in count data using state space models: a cohort study of hospitalization rates of stroke in atrial fibrillation patients in Denmark from 1977 to 2011 Peak-to-trough ratios. Peak-to-trough ratio of the seasonal variation in incidence rates of stroke in AF patients in Denmark estimated by a dynamic generalized linear model. The solid line represents the dynamic peak-to-trough ratio estimated by including a dynamic seasonal variation component in a generalized linear model, whereas the dashed line represents a static seasonal variation.Back to article page