External Validation of 4C ISARIC Mortality Score in Critically ill COVID-19 Patients from Saudi Arabia.

Saudi J Med Med Sci · 2022 · PMC8869262 · PMID 35283713

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highly significantno p-value reported

The associated criterion with Youden's index was a score of >9; accordingly, survival based on that cutoff value estimated by the Kaplan–Meier curve showed a median survival of 22 days with ISARIC scores ≤9 and 16 days with scores >9, and the associated log-rank test was highly significant [ Figure 3 ].

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