ArticleJournal of chiropractic medicine2016
Classifying Whiplash Recovery Status Using the Neck Disability Index: Optimized Cutoff Points Derived From Receiver Operating Characteristic.
Article in Journal of chiropractic medicine, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Exercise-Induced Hypoalgesia in Patients with Chronic Whiplash-Associated Disorders: Differences between Subgroups Based on the Central Sensitization Inventory.Journal of clinical medicine · 2024Article
- Exploring sex as a moderator of other prognostic variables in whiplash associated disorder: An observational study.PloS one · 2023Observational
- Article
- Cut-off values of and factors associated with a negative influence on Neck Disability Index.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2018Article
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveResearchers often use Neck Disability Index (NDI) scores to classify recovery status in whiplash patients. The purpose of this study was to investigate the optimal cutoff point score for the NDI as a mechanism for differentiating recovery from nonrecovery after whiplash.
methodsSubjects (N = 123) who had previously sustained whiplash injuries were recruited from 12 clinics. Subjects rated themselves as being recovered (36%) or nonrecovered (64%). This state variable was compared with their NDI score as test variable using the receiver operating characteristic statistic. The area under the receiver operating characteristic curve and optimized cutoff points were computed for the whole group and also dichotomized for sex and age.
resultsThe mean NDI score for the recovered group was 7.8. It was 27.1 for the nonrecovered group. The cutoff point that optimized sensitivity and specificity for the whole group was an NDI score of 15. For women, it was 19; for older persons, it was 21.
conclusionThe optimal NDI score cutoff point for differentiating the recovery state after whiplash is 15. Misclassification errors are likely when using lower values.
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