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. 2021 Jul 15;27(12):1838–1844. doi: 10.1016/j.cmi.2021.07.006

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© 2021 The Authors

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Fig. 2 — Decision curve analysis within the validation cohort. Clinical usefulness of the PRIORITY model compared to risk stratification based on oxygen saturation (binary: SpO₂ ≤93% or oxygen requirement) and/or age (quadratic term). The x-axis represents the whole range of decision threshold probabilities for critical illness (p_t) and the y-axis represents the net benefit (NB). NB calculated as: True positives/N – (false positives/N)∗(p_t/(1–p_t)), with N total sample size.