The change in health status over the lifetime course of RA. The change in health status over the lifetime course of 18,485 RA patients for PCS (upper left), MCS (upper right), EQ-5D (lower left), and HAQ (lower right). The dashed lines for PCS, MCS, and EQ-5D represent age and sex adjusted population normative data. See methods for details. HAQ, Health Assessment Questionnaire; PCS, SF-36 Physical Component Summary; MCS, SF-36 Mental Component Summary.
Wolfe and Michaud Arthritis Research & Therapy 2010 12:R35 doi:10.1186/ar2944