Development of a PROMIS item bank to measure pain interference
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- 1 July 2010
- journal article
- research article
- Published by Ovid Technologies (Wolters Kluwer Health) in Pain
- Vol. 150 (1), 173-182
- https://doi.org/10.1016/j.pain.2010.04.025
Abstract
This paper describes the psychometric properties of the PROMIS-pain interference (PROMIS-PI) bank. An initial candidate item pool (n = 644) was developed and evaluated based on the review of existing instruments, interviews with patients, and consultation with pain experts. From this pool, a candidate item bank of 56 items was selected and responses to the items were collected from large community and clinical samples. A total of 14,848 participants responded to all or a subset of candidate items. The responses were calibrated using an item response theory (IRT) model. A final 41-item bank was evaluated with respect to IRT assumptions, model fit, differential item function (DIF), precision, and construct and concurrent validity. Items of the revised bank had good fit to the IRT model (CFI and NNFI/TLI ranged from 0.974 to 0.997), and the data were strongly unidimensional (e.g., ratio of first and second eigenvalue = 35). Nine items exhibited statistically significant DIF. However, adjusting for DIF had little practical impact on score estimates and the items were retained without modifying scoring. Scores provided substantial information across levels of pain; for scores in the T-score range 50–80, the reliability was equivalent to 0.96–0.99. Patterns of correlations with other health outcomes supported the construct validity of the item bank. The scores discriminated among persons with different numbers of chronic conditions, disabling conditions, levels of self-reported health, and pain intensity (p < 0.0001). The results indicated that the PROMIS-PI items constitute a psychometrically sound bank. Computerized adaptive testing and short forms are available.Keywords
This publication has 47 references indexed in Scilit:
- Representativeness of the Patient-Reported Outcomes Measurement Information System Internet panelJournal of Clinical Epidemiology, 2010
- Development of physical and mental health summary scores from the patient-reported outcomes measurement information system (PROMIS) global itemsQuality of Life Research, 2009
- Having a fit: impact of number of items and distribution of data on traditional criteria for assessing IRT’s unidimensionality assumptionQuality of Life Research, 2009
- Evaluation of Item CandidatesMedical Care, 2007
- SF-36 Health Survey UpdateSpine, 2000
- Cutoff criteria for fit indexes in covariance structure analysis: Conventional criteria versus new alternativesStructural Equation Modeling: A Multidisciplinary Journal, 1999
- On the Utility of the West Haven-Yale Multidimensional Pain InventorySpine, 1995
- Grading the severity of chronic painPain, 1992
- The MOS 36-ltem Short-Form Health Survey (SF-36)Medical Care, 1992
- The West Haven-Yale Multidimensional Pain Inventory (WHYMPI)Pain, 1985