Analyses of Cross-Sectional Data to Link the PEG with the Patient Reported Outcomes Measurement and Information System (PROMIS®) Global Physical Health Scale.

It is challenging to synthesize findings across studies of pain impact. This study develops a link to estimate the Patient-Reported Outcomes Measurement Information System (PROMIS®) global health measure from the 3-item PEG (Pain intensity, interference with Enjoyment of life, interference with General activity) scale, The PROMIS and PEG items were administered to 792 adults (average age = 51; 54% female, 79% White). We estimated correlations among the PEG and PROMIS items and conducted factor analysis to identify the best subset of PROMIS items for linking to the PEG. An item response theory graded response model was estimated to link the PEG with the 4-item PROMIS global physical health scale. A categorical single-factor model and a bifactor model provided support for a single dimension for the PEG and PROMIS physical health items. The product-moment correlation between estimated PROMIS global physical health scale from the PEG and the actual global physical health score was 0.74. The mean difference between estimated PROMIS global physical health scale score from the PEG and the observed global physical health score was less than a T-score point. This study makes it possible to estimate the average general physical health for group-level comparisons in research that includes the PEG.

• Publication year

  2022

• Venue

  Journal of Pain

• Publication date

  2022-06-01

• Fields of study

  Medicine

• Identifiers
  DOI 10.1016/j.jpain.2022.06.006PMID 35768043PMCID PMC9752773
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• No claims are published for this paper.

• No concepts are published for this paper.

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