Fig. 1From: Rasch analysis of the brief Michigan Hand Questionnaire in patients with thumb osteoarthritisa The threshold map for original 12 items brief MHQ. b The threshold map for the rescored brief MHQ. Each colour bar represents a response option; blue represents response option 0, red represents response option 1, green represents response option 3, purple represents response option 4, and pink represents response option 5. Disordered thresholds are represented by **Â Back to article page