Evidence map›Paper›PMID 29186635›Full record

Trial reportPhysical therapy2017

Identification of Indirect Effects in a Cognitive Patient Education (COPE) Intervention for Low Back Pain.

Gemma Mansell, Kjersti Storheim, Ida Løchting, Erik L Werner, Margreth Grotle

Open access · bronzeAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Physical therapy, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 3 pooled it
1.3field-weighted citation impact, top 20% of its field
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

12 citing papers in PubMed, 3 syntheses or guidelines pooled it, 27 citations in OpenAlex.

  1. Pooled it
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  4. Trial
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  6. Psychometric examination of short forms from the University of Washington pain-related self-efficacy and concerns about pain item banks in patients with low back pain.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2022
    Trial
  7. Article
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  12. GLA:DBMC musculoskeletal disorders · 2018
    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

5 authors at 3 institutions in 2 countries.

Gemma MansellG. Mansell, PhD, Research Institute for Primary Care & Health Sciences, Keele University, Staffordshire ST5 5BG, United Kingdom.
Kjersti StorheimK. Storheim, PT, PhD, Research and Communication Unit for Musculoskeletal Diseases (FORMI), Division for Surgery and Neurology, Oslo University Hospital, Ullevaal, Oslo, Norway.
Ida LøchtingI. Løchting PhD, FORMI, Division for Surgery and Neurology, Oslo University Hospital, and Department of Clinical Medicine, University of Oslo, Ullevaal, Oslo, Norway.
Erik L WernerE.L. Werner, MD, PhD, Department of General Practice, Institute of Health and Society, University of Oslo, and Research Unit for General Practice, Uni Health Research, Uni Research, Bergen, Norway.
Margreth GrotleM. Grotle, PT, PhD, FORMI, Division for Surgery and Neurology, Oslo University Hospital, and Institute of Physiotherapy, Oslo and Akershus University College for Applied Sciences, Oslo, Norway.
Oslo University Hospital · NOKeele University · GBUniversity of Oslo · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMany interventions for the treatment of low back pain exist, but the mechanisms through which such treatments work are not always clear. This situation is especially true for biopsychosocial interventions that incorporate several different components and methods of delivery.

objectiveThe study objective was to examine the indirect effects of the Cognitive Patient Education (COPE) intervention via illness perceptions, back pain myths, and pain catastrophizing on disability outcome.

designThis study was a secondary analysis of the COPE randomized controlled trial.

methodsMediation analysis techniques were employed to examine the indirect effects of the COPE intervention via residualized change (baseline - posttreatment) in the 3 variables hypothesized to be targeted by the COPE intervention on posttreatment disability outcome. Pain intensity at baseline, pain duration, clinician type, and a treatment-mediator interaction term were controlled for in the analysis.

resultsPreliminary analyses confirmed that changes in pain catastrophizing and illness perceptions (not back pain myths) were related to both allocation to the intervention arm and posttreatment disability score. The treatment exerted statistically significant indirect effects via changes in illness perceptions and pain catastrophizing on posttreatment disability score (illness perceptions standardized indirect effect = 0.09 [95% CI = 0.03 to 0.16]; pain catastrophizing standardized indirect effect = 0.05 [95% CI = 0.01 to 0.12]). However, the inclusion of an interaction term led to the indirect effects being significantly reduced, with the effects no longer being statistically significant. LIMITATIONS: This study presents a secondary analysis of variables not identified a priori as being potentially important treatment targets; other, unmeasured factors could also be important in explaining treatment effects.

conclusionsThe finding that small indirect effects of the COPE intervention via changes in illness perceptions and pain catastrophizing on posttreatment disability could be estimated indicates that these variables may be viable treatment targets for biopsychosocial interventions; however, this finding must be viewed in light of the adjusted analyses, which showed that the indirect effects were significantly reduced through the inclusion of a treatment-mediator interaction term.

Indexed as

Cognitive Behavioral TherapyPatient Education as TopicPhysical Therapy ModalitiesCatastrophizationHealth Knowledge, Attitudes, PracticeHumansLow Back PainPain PerceptionTreatment Outcome

Identifiers

PMID29186635
PMCPMC5803786
OpenAlexW2750777080

What OpenQuestion holds

Textmetadata
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Registered trials

None linked

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.