Fig. 3From: Prescription Sequence Symmetry Analysis (PSSA) to assess prescribing cascades: a step-by-step guideIn- and exclusion criteria for PSSA assessment covering the period January 2015 to December 2020. The episodes shown are general examples of applying different time periods and do not relate to a specific combination of medications. Set parameters: 12 months washout window, 12 months exposure window, 0 days for the blackout period, and continued exposure interval (CEI) of 4 months. Example episodes A until F are all excluded based on the PSSA parameter settings. Example episodes G until J are includedBack to article page