Letter to the editor concerning “Demographics, presentation and symptoms of patients with Klippel-Feil syndrome: analysis of a global patient-reported registry” by Nouri et al. [Eur Spine J; (2019) 28(10): 2257–2265]

[摘要] In a recent study, Nouri et al. [1] have reported the demographics, presentation, and symptoms of patients with Klippel Feil Syndrome (KFS), and the authors showed that associated comorbidities including Sprengel deformity may be more common in KFS patients with multilevel cervical fusions. We highly appreciate their work on this important topic. However, we found a faw in the statistical analysis that calls the results into question.