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Skelly AC, Chou R, Dettori JR, et al. Noninvasive Nonpharmacological Treatment for Chronic Pain: A Systematic Review Update [Internet]. Rockville (MD): Agency for Healthcare Research and Quality (US); 2020 Apr. (Comparative Effectiveness Review, No. 227.)

Cover of Noninvasive Nonpharmacological Treatment for Chronic Pain: A Systematic Review Update

Noninvasive Nonpharmacological Treatment for Chronic Pain: A Systematic Review Update [Internet].

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Appendix HDefinitions for Magnitude of Effects

Table H-1Definitions for magnitude of effects, based on mean between-group differences

OutcomeSlight/Small Magnitude of EffectModerate Magnitude of EffectLarge/Substantial Magnitude of Effect
Pain5–10 points on a 0-to 100-point VAS or the equivalent>10–20 points on a 0-to 100-point VAS or the equivalent>20 points on a 0-to 100-point VAS or the equivalent
0.5–1.0 points on a 0-to 10-point numerical rating scale or the equivalent>1–2 points on a 0-to 10-point numerical rating scale or the equivalent>2 points on a 0-to 10-point numerical rating scale or the equivalent
Function5–10 points on the ODI>10–20 points on the ODI>20 points on the ODI
1–2 points on the RDQ>2–5 points on the RDQ>5 points on the RDQ
1-2 points on the Lequesne Index>2-5 points on the Lequesne Index5 points on the Lequesne Index
1-5 points on the SF-MPQ>5-10 points on the SF-MPQ>10 points on the SF-MPQ
5–10 points on the WOMAC>10–20 points on the WOMAC>20 points on the WOMAC
5–10 points on the KOOS>10–20 points on the KOOS>20 points on the KOOS
5-10 points on the NPQ>10–20 points on the NPQ>20 points on the NPQ
5-10 points on the FIQ Total Score>10–20 points on the FIQ Total Score>20 points on the FIQ Total Score
7.5-10 points on the NDI>10-20 on the NDI>20 points on the NDI
1.3 – 2.2 on the PSFS23.3 −2.6 on the PSFS>2.6 on the PSFS
Pain or Function0.2–0.5 SMD>0.5–0.8 SMD>0.8 SMD

FIQ = Fibromyalgia Impact Questionnaire; KOOS=Knee Injury and Osteoarthritis Outcome Score; NDI = neck disability index; NPQ = Northwick Park Questionnaire; ODI = Oswestry Disability Index; PSFS = Patient-Specific Functional Scale; RDQ = Roland Morris Disability Questionnaire; SF-MPQ = Short-Form McGill Pain Questionnaire; SMD = standardized mean difference; VAS = visual analogue scale; WOMAC = Western Ontario and Mc Master Universities Osteoarthritis index.

Bookshelf ID: NBK556215

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