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Minimally important differences for Patient Reported Outcomes Measurement Information System pain interference for individuals with back pain

BACKGROUND: The minimally important difference (MID) refers to the smallest change that is sufficiently meaningful to carry implications for patients’ care. MIDs are necessary to guide the interpretation of scores. This study estimated MID for the Patient Reported Outcomes Measurement Information Sy...

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Autores principales: Amtmann, Dagmar, Kim, Jiseon, Chung, Hyewon, Askew, Robert L, Park, Ryoungsun, Cook, Karon F
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Dove Medical Press 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4854267/
https://www.ncbi.nlm.nih.gov/pubmed/27175093
http://dx.doi.org/10.2147/JPR.S93391
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author Amtmann, Dagmar
Kim, Jiseon
Chung, Hyewon
Askew, Robert L
Park, Ryoungsun
Cook, Karon F
author_facet Amtmann, Dagmar
Kim, Jiseon
Chung, Hyewon
Askew, Robert L
Park, Ryoungsun
Cook, Karon F
author_sort Amtmann, Dagmar
collection PubMed
description BACKGROUND: The minimally important difference (MID) refers to the smallest change that is sufficiently meaningful to carry implications for patients’ care. MIDs are necessary to guide the interpretation of scores. This study estimated MID for the Patient Reported Outcomes Measurement Information System (PROMIS) pain interference (PI). METHODS: Study instruments were administered to 414 people who participated in two studies that included treatment with low back pain (LBP; n=218) or depression (n=196). Participants with LBP received epidural steroid injections and participants with depression received antidepressants, psychotherapy, or both. MIDs were estimated for the changes in LBP. MIDs were included only if a priori criteria were met (ie, sample size ≥10, Spearman correlation ≥0.3 between anchor measures and PROMIS-PI scores, and effect size range =0.2–0.8). The interquartile range (IQR) of MID estimates was calculated. RESULTS: The IQR ranged from 3.5 to 5.5 points. The lower bound estimate of the IQR (3.5) was greater than mean of standard error of measurement (SEM) both at time 1 (SEM =2.3) and at time 2 (SEM =2.5), indicating that the estimate of MID exceeded measurement error. CONCLUSION: Based on our results, researchers and clinicians using PROMIS-PI can assume that change of 3.5 to 5.5 points in comparisons of mean PROMIS-PI scores of people with LBP can be considered meaningful.
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spelling pubmed-48542672016-05-12 Minimally important differences for Patient Reported Outcomes Measurement Information System pain interference for individuals with back pain Amtmann, Dagmar Kim, Jiseon Chung, Hyewon Askew, Robert L Park, Ryoungsun Cook, Karon F J Pain Res Original Research BACKGROUND: The minimally important difference (MID) refers to the smallest change that is sufficiently meaningful to carry implications for patients’ care. MIDs are necessary to guide the interpretation of scores. This study estimated MID for the Patient Reported Outcomes Measurement Information System (PROMIS) pain interference (PI). METHODS: Study instruments were administered to 414 people who participated in two studies that included treatment with low back pain (LBP; n=218) or depression (n=196). Participants with LBP received epidural steroid injections and participants with depression received antidepressants, psychotherapy, or both. MIDs were estimated for the changes in LBP. MIDs were included only if a priori criteria were met (ie, sample size ≥10, Spearman correlation ≥0.3 between anchor measures and PROMIS-PI scores, and effect size range =0.2–0.8). The interquartile range (IQR) of MID estimates was calculated. RESULTS: The IQR ranged from 3.5 to 5.5 points. The lower bound estimate of the IQR (3.5) was greater than mean of standard error of measurement (SEM) both at time 1 (SEM =2.3) and at time 2 (SEM =2.5), indicating that the estimate of MID exceeded measurement error. CONCLUSION: Based on our results, researchers and clinicians using PROMIS-PI can assume that change of 3.5 to 5.5 points in comparisons of mean PROMIS-PI scores of people with LBP can be considered meaningful. Dove Medical Press 2016-04-27 /pmc/articles/PMC4854267/ /pubmed/27175093 http://dx.doi.org/10.2147/JPR.S93391 Text en © 2016 Amtmann et al. This work is published and licensed by Dove Medical Press Limited The full terms of this license are available at https://www.dovepress.com/terms.php and incorporate the Creative Commons Attribution – Non Commercial (unported, v3.0) License (http://creativecommons.org/licenses/by-nc/3.0/). By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed.
spellingShingle Original Research
Amtmann, Dagmar
Kim, Jiseon
Chung, Hyewon
Askew, Robert L
Park, Ryoungsun
Cook, Karon F
Minimally important differences for Patient Reported Outcomes Measurement Information System pain interference for individuals with back pain
title Minimally important differences for Patient Reported Outcomes Measurement Information System pain interference for individuals with back pain
title_full Minimally important differences for Patient Reported Outcomes Measurement Information System pain interference for individuals with back pain
title_fullStr Minimally important differences for Patient Reported Outcomes Measurement Information System pain interference for individuals with back pain
title_full_unstemmed Minimally important differences for Patient Reported Outcomes Measurement Information System pain interference for individuals with back pain
title_short Minimally important differences for Patient Reported Outcomes Measurement Information System pain interference for individuals with back pain
title_sort minimally important differences for patient reported outcomes measurement information system pain interference for individuals with back pain
topic Original Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4854267/
https://www.ncbi.nlm.nih.gov/pubmed/27175093
http://dx.doi.org/10.2147/JPR.S93391
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