Normality analysis of numeric rating scale scores in patients with chronic axial spine pain before and after medial branch blocks: a multicenter study
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Le résumé fourni par la source
OBJECTIVE: The statistical analysis typically used to compare pain before and after interventions assumes that scores are normally distributed. The present study evaluates whether numeric rating scale (NRS) scores, specifically NRS-11 scores, are indeed normally distributed in a clinically relevant cohort of adults with chronic axial spine pain before and after analgesic intervention. METHODS: Retrospective review from 4 academic medical centers of prospectively collected data from a uniform pain diary administered to consecutive patients after they had undergone medial branch blocks. The pain diary assessed NRS-11 scores immediately before injection and at 12 different time points after injection up to 48 hours. D'Agostino-Pearson tests were used to test normality at all time points. RESULTS: One hundred fifty pain diaries were reviewed, and despite normally distributed pre-injection NRS-11 scores (K2 = 0.655, P = .72), all post-injection NRS-11 data were not normally distributed (K2 = 9.70- 17.62, P = .0001-.008). CONCLUSIONS: Although the results of parametric analyses of NRS-11 scores are commonly reported in pain research, some properties of the NRS-11 do not satisfy the assumptions required for these analyses. The data demonstrate non-normal distributions in post-intervention NRS-11 scores, thereby violating a key requisite for parametric analysis. We urge pain researchers to consider appropriate statistical analysis and reporting for non-normally distributed NRS-11 scores to ensure accurate interpretation and communication of these data. Practicing pain physicians should similarly recognize that parametric post-intervention pain score statistics might not accurately describe the data and should expect articles to utilize measures of normality to justify the selected statistical methods.
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Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Normality analysis of numeric rating scale scores in patients with chronic axial spine pain before and after medial branch blocks: a multicenter study
- Date Crossref
- 22/05/2024
- Éditeur
- Oxford University Press (OUP)
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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University of New Mexico Department of Anesthesia & Critical Care Medicine pays non établi dans la noticeUniversité ou école supérieure
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VA Tennessee Valley Healthcare System pays non établi dans la noticeÉtablissement de santé
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Vanderbilt University Medical Center Department of Physical Medicine and Rehabilitation pays non établi dans la noticeÉtablissement de santé
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Medical University of South Carolina Department of Orthopaedics & Physical Medicine pays non établi dans la noticeUniversité ou école supérieure
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Emory University Department of Orthopaedics pays non établi dans la noticeUniversité ou école supérieure
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University of California Department of Orthopedic Surgery pays non établi dans la noticeUniversité ou école supérieure
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University of Utah Department of Physical Medicine and Rehabilitation pays non établi dans la noticeUniversité ou école supérieure
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Physical Medicine and Rehabilitation Service pays non établi dans la noticeInstitution
Department of Anesthesia & Critical Care Medicine — University of New Mexico, VA Tennessee Valley Healthcare System et Department of Physical Medicine and Rehabilitation — Vanderbilt University Medical Center, avec 5 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.