The objectives of this study were to translate and cross-cultural adapt OSPRO-ROS and OSPRO-YF questionnaires to Spanish and to investigate their psychometric properties for their use in subjects with musculoskeletal pain.To accomplish the objectives proposed, this study was developed in two phases:Phase I: Cross-cultural adaptation process.Phase II: Psychometric properties evaluation.
Clinical guidelines for managing musculoskeletal pain recommend first, assessing and identifying any signs of severe physical conditions (i.e.red flags) and then, asessing the psychosocial prognostic factors of poor outcomes (i.e.yellow flags). The Optimal Sreening for Prediction of Referral and Outcome (OSPRO) cohort studies were designed to develop and validate standard assessment tools for Review Of Systems (OSPRO-ROS) and Yellow Flags (OSPRO-YF).