Article

Quality of Life Research

, Volume 19, Issue 4, pp 595-607

First online:

An item response analysis of the pediatric PROMIS anxiety and depressive symptoms scales

  • Debra E. IrwinAffiliated withDepartment of Epidemiology, University of North Carolina at Chapel Hill Email author 
  • , Brian StuckyAffiliated withDepartment of Psychology, University of North Carolina at Chapel Hill
  • , Michelle M. LangerAffiliated withNational Board of Medical Examiners
  • , David ThissenAffiliated withDepartment of Psychology, University of North Carolina at Chapel Hill
  • , Esi Morgan DeWittAffiliated withDepartment of Pediatrics, Duke University Medical Center
  • , Jin-Shei LaiAffiliated withDepartment of Medical Social Sciences, Northwestern University Feinberg School of Medicine
  • , James W. VarniAffiliated withDepartment of Pediatrics, College of Medicine, Department of Landscape Architecture and Urban Planning, College of Architecture, Texas A&M University
  • , Karin YeattsAffiliated withDepartment of Epidemiology, University of North Carolina at Chapel Hill
  • , Darren A. DeWaltAffiliated withDivision of General Medicine and Clinical Epidemiology, Cecil G. Sheps Center for Health Services Research, University of North Carolina at Chapel Hill

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Abstract

Purpose

The Patient-Reported Outcomes Measurement Information System (PROMIS) aims to develop self-reported item banks for clinical research. The PROMIS pediatrics (aged 8–17) project focuses on the development of item banks across several health domains (physical function, pain, fatigue, emotional distress, social role relationships, and asthma symptoms). The psychometric properties of the anxiety and depressive symptom item banks are described.

Methods

Participants (n = 1,529) were recruited in public school settings, hospital-based outpatient and subspecialty pediatrics clinics. The anxiety (k = 18) and depressive symptoms (k = 21) items were split between two test administration forms. Hierarchical confirmatory factor-analytic models (CFA) were conducted to evaluate scale dimensionality and local dependence. IRT analyses were then used to finalize item banks and short forms.

Results

CFA results confirmed that anxiety and depressive symptoms are separate constructs and indicative of negative affect. Items with local dependence and DIF were removed resulting in 15 anxiety and 14 depressive symptoms items. The psychometric differences between short forms and simulated computer adaptive tests are presented.

Conclusions

PROMIS pediatric item banks were developed to provide efficient assessment of health-related quality of life domains. This sample provides initial calibrations of anxiety and depressive symptoms item banks and creates PROMIS pediatric instruments, version 1.0.

Keywords

PROMIS Anxiety Depressive symptoms HRQOL PRO Scale development Surveys Pediatrics