Evidence map›Paper›PMID 30885677›Full record

ArticleThe spine journal : official journal of the North American Spine Society2019

Exploring the prevalence and construct validity of high-impact chronic pain across chronic low-back pain study samples.

Patricia M Herman, Nicholas Broten, Tara A Lavelle, Melony E Sorbero, Ian D Coulter

Abstract read
In one paragraph

Article in The spine journal : official journal of the North American Spine Society, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing 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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

14 citing papers in PubMed.

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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

5 authors.

Patricia M HermanRAND Corporation, 1776 Main Street, PO Box 2138, Santa Monica, CA 90407-2138, USA. Electronic address: pherman@rand.org.
Nicholas BrotenRAND Corporation, 1776 Main Street, PO Box 2138, Santa Monica, CA 90407-2138, USA.
Tara A LavelleRAND Corporation, 1776 Main Street, PO Box 2138, Santa Monica, CA 90407-2138, USA; Center for the Evaluation of Value and Risk in Health, Institute of Clinical Research and Health Policy Studies, Tufts Medical Center, 800 Washington St., Boston, MA 02132, USA.
Melony E SorberoRAND Corporation, 4570 Fifth Ave #600, Pittsburgh, PA 15213, USA.
Ian D CoulterRAND Corporation, 1776 Main Street, PO Box 2138, Santa Monica, CA 90407-2138, USA.

Funding

Systematic Review Core (SRC)/Ian D. CoulterU19AT007912 · NCCIH · RAND CORPORATION · PI COULTER, IAN DOUGLASS, HERMAN, PATRICIA M · 2013 to 2017
$8.5M
NCCIH NIH HHS U19 AT007912
6 · The paper itself

Abstract

background contextThe US National Pain Strategy focused attention on high-impact chronic pain and its restrictions. Although many interventions have been studied for chronic low-back pain, results are typically reported for heterogeneous samples. To better understand chronic pain and target interventions to those who most need care, more granular classifications recognizing chronic pain's impact are needed. PURPOSE: To test whether chronic pain impact levels can be identified in chronic low-back pain clinical trial samples, examine the baseline patient mix across studies, and evaluate the construct validity of high-impact chronic pain. STUDY DESIGN/

settingDescriptive analyses using 12 large study datasets. PATIENT SAMPLES: Chronic low-back pain patients in nonsurgical, nonpharmacologic trials in the US, Canada, and UK. OUTCOME MEASURES: Preference-based health utilities from the SF-6D and EQ-5D, employment status and absenteeism.

methodsWe used two logistic regression models to predict whether patients had high-impact chronic pain and whether the remainder had low- or moderate-impact chronic pain. We developed these models using two datasets. Models with the best predictive power were used to impute impact levels for six other datasets. Stratified by these estimated chronic pain impact levels, we characterized the case mix of patients at baseline in each dataset, and summarized their health-utilities and work productivity. This study was funded by a National Center for Complementary and Integrative Medicine grant. The authors have no potential conflicts of interest.

resultsThe logistic models had excellent predictive power to identify those with high-impact chronic pain. Although studies were all of chronic low-back pain patients, the baseline mix of patients varied widely. Across all datasets, utilities, and productivity were similar for those with high-impact chronic pain and worsened as chronic pain impact increased.

conclusionsThere is a need to better categorize chronic pain patients to allow the targeting of optimal interventions for those with each level of chronic pain impact.

Indexed as

AdultCanadaChronic PainClinical Trials as TopicFemaleHumansLow Back PainMaleMiddle AgedPain MeasurementPrevalenceQuality of LifeSurveys and QuestionnairesBaseline study participant mixChronic low-back painFunctional limitationsHealth state utilitiesHigh-impact chronic painProductivity loss

Identifiers

PMID30885677
PMCPMC6760858

What OpenQuestion holds

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Registered trials

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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.