Evidence map›Paper›PMID 36151555›Full record

ArticleBMC musculoskeletal disorders2022

Unpacking the impact of chronic pain as measured by the impact stratification score.

Anthony Rodriguez, Maria Orlando Edelen, Patricia M Herman, Ron D Hays

Registry-linked trialAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in BMC musculoskeletal disorders, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04426812 (Measuring Chronic Pain Impact), which is not on this map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT04426812 completednot on this map

Measuring Chronic Pain Impact

TypeobservationalSponsorRANDRan2021 to 2024Enrolled11,146ConditionsChronic PainArmsNo intervention, just data collection
3 · Its place in the literature

Who cites it

5 citing papers in PubMed.

  1. Trial
  2. Longitudinal validation of the PROMIS-16 in a sample of adults in the United States with back pain.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2025
    Article
  3. Article
  4. Article
  5. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Anthony RodriguezRAND Corporation, Behavioral and Policy Sciences, 20 Park Plaza #920, Boston, MA, USA. anthonyr@rand.org.
Maria Orlando EdelenRAND Corporation, Behavioral and Policy Sciences, 20 Park Plaza #920, Boston, MA, USA.
Patricia M HermanRAND Corporation, Behavioral and Policy Sciences, 1776 Main Street, Santa Monica, CA, USA.
Ron D HaysDivision of General Internal Medicine & Health Services Research, UCLA Department of Medicine, Los Angeles, CA, USA.

Funding

Measuring Chronic Pain ImpactR01AT010402 · NCCIH · RAND CORPORATION · PI HAYS, RONALD DALE, HERMAN, PATRICIA M · 2020 to 2023
$2.5M
NCCIH NIH HHS 1R01AT010402-01A1NCCIH NIH HHS R01 AT010402
6 · The paper itself

Abstract

backgroundIn 2014, the National Institute of Health Pain Consortium's research task force on research standards for chronic low back pain (CLBP) proposed a measure that could be used to stratify patients by the impact CLBP has on their lives, namely the Impact Stratification Score (ISS). This study examines the dimensionality of the ISS and support for its single total score, and evaluates its overall psychometric properties.

methodsThe sample included 1677 chiropractic patients being treated for CLBP and chronic neck pain, had an average age of 49, 71% female, and 90% White. Study participants completed the PROMIS-29 v2.1 profile survey that contains the 9 ISS items. The ISS was evaluated using item-total correlations, Cronbach's alpha, factor analysis (i.e., correlated factors and bifactor models), and item response theory (IRT). Reliability indices and item properties were evaluated from bifactor and IRT models, respectively.

resultsItem-total correlations were high (0.64-0.84) with a Cronbach's alpha of 0.93. Eigenvalues suggested the possibility of two factors corresponding to physical function and pain interference/intensity. Bifactor model results indicated that data were essentially unidimensional, primarily reflecting one general construct (i.e., impact) and that after accounting for 'impact' very little reliable variance remained in the two group factors. General impact scores were reliable (omegaH = .73). IRT models showed that items were strong indicators of impact and provided information across a wide range of the impact continuum and offer the possibility of a shorter 8-item ISS. Finally, it appears that different aspects of pain interference occur prior to losses in physical function.

conclusionsThis study presents evidence that the ISS is sufficiently unidimensional, covers a range of chronic pain impact and is a reliable measure. Insights are obtained into the sequence of chronic pain impacts on patients' lives.

Indexed as

Chronic PainLow Back PainFemaleHumansMaleMiddle AgedPain MeasurementPsychometricsReproducibility of ResultsSurveys and QuestionnairesBifactorChronic low back painImpact stratificationPatient-reported outcomesPROMIS®Reliability

Identifiers

PMID36151555
PMCPMC9503239

What OpenQuestion holds

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Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.