For a study, the goal of the retrospective cohort study was to determine if the Paediatric Domain scores of the Patient-reported Outcomes Measurement Information System (PROMIS) can be accurately and reliably predict from legacy patient-reported outcome measures (PROMs) for use in adolescent idiopathic scoliosis patients. In adult spinal deformity, translational models between PROMIS domains and legacy PROMs have been constructed previously. However, translational models for pediatric and adolescent spinal deformity patients have yet to be developed. Scores for the PROMs Scoliosis Research Society-22r (SRS-22r), Trunk Appearance Perception Scale (TAPS), Hospital for Special Surgery Functional Activity Brief Scale (HSS Pedi-FABS), and PROMIS Paediatric Domains: Pain Interference, Mobility, Physical Stress Experiences, Psychological Stress Experiences, and Physical Activity were collected retrospectively on pediatric patients 8–17 years old who were diagnosed with spinal asymmetry or scoliosis. Between legacy and PROMIS scores, Pearson correlations were determined. PROMIS domains were modeled using linear regression in the derivation cohort using SRS-22r or HSS Pedi-FABS. These equations were utilized to predict PROMIS scores in the test cohort to determine the translation model’s dependability. The final analyses included 1,171 patients (68% of whom were female) with an average of 13.4 2.3 years. SRS-22r domains were required for PROMIS Pain Interference. PROMIS Mobility was dependent on SRS-22r Pain, Function, Mental Health, and Self-Image. PROMIS Physical Stress Experiences and Psychological Stress Experiences depended on SRS-22r Pain, Mental Health, and Management Satisfaction, and PROMIS Physical Activity was reliant on HSS Pedi-FABS (P<0.05 for all). All created models for PROMIS domains showed strong relationships between estimated and total scores (r=0.63–0.75) in the test cohort. For juvenile and teenage patients with spinal deformity, all of the examined PROMIS domains (Pain Interference, Mobility, Physical Stress Experiences, Psychological Stress Experiences, Physical Activity) were reliably translated straight from these legacy scores.
