{
  "abstract": "When two models are evaluated on the same cohort of patients, as in the study by Zaboli et al, 1 which compared the National Early Warning Score (NEWS) with and without systolic blood pressure (NEWS-SBP), the resulting performance metrics are inherently correlated. This correlation must be properly accounted for in statistical testing. Misunderstanding this principle can lead to flawed interpretations of study results, a point well raised by recent correspondence2 regarding the aforementioned study.",
  "authors": [
    {
      "affiliations": [
        "Department of Emergency Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada"
      ],
      "name": "Nana Owusu Mensah Essel"
    }
  ],
  "title": "Correspondence on “Removing systolic blood pressure from the National Early Warning Score (NEWS) for mortality prediction: an observational study” by Zaboli et al",
  "uid": "67e08f8e-86e0-5ce5-8e95-46f94b17bd77"
}