Gerdle B, Rivano Fischer M, Cervin M, et al. - Researchers investigated the correlation between spreading of pain and (1) pain duration (2) clinical presentation (eg, pain intensity, pain-related cognitions, psychological distress, activity/participation aspects and quality of life) and (3) treatment outcome using data from patients included in the Swedish Quality Registry for Pain Rehabilitation (n = 39,916). Findings suggest that spreading of pain is indicative of the duration and severity of chronic pain and to a limited extent to outcomes of interdisciplinary multimodal pain rehabilitation programs (IMMRPs). Longer pain duration in those with more widespread pain backs the concept of early intervention as clinically relevant and implies a necessity to develop and improve rehabilitation for patients with chronic widespread pain.