Fig. 4From: From simple to even simpler, but not too simple: a head-to-head comparison of the Better-Worse and Drop-Down methods for measuring patient health statusSchemes representing the steps taken to generate data for the Drop-Down analysis. The example reflects rated levels for the 12 items (with 7 levels being higher than the reference Level 1) of the CS-Base ePROM (left). Responses were stored on the server after five drop-downs (middle). The final data for the analysis were obtained after inserting postulated health states (right)Back to article page