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Fig. 3 | Critical Care

Fig. 3

From: Persistence of live virus in critically ill patients infected with SARS-COV-2: a prospective observational study

Fig. 3

Receiver operating characteristic curves for cycle threshold (Ct), Log RNA Copies/mL and days between tests. The AUC for Ct was 0.90 (95% CI 0.83–0.97, p < 0.001), for Log Copies RNA/ml: 0.87 (95% CI 0.79–0.95, p < 0.001) and for time between tests the AUC was 0.58 (95% CI 0.35–0.82, p = 0.41). The AUC for Ct and days between tests was significantly different (p = 0.01). The specificity of a Ct > 25 to predict negative viral culture was 100% (95% CI 70–100%)

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Critical Care

ISSN: 1364-8535