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Beni-Suef University Journal of Basic and Applied Sciences
Fig. 3 | Beni-Suef University Journal of Basic and Applied Sciences

Fig. 3

From: Comparable detection of nasopharyngeal swabs and induced sputum specimens for viral nucleic acid detection of suspected novel coronavirus (SARS-Cov-2) patients in Fayoum governorate, Egypt

Fig. 3

Receiver operating characteristic (ROC) curve for overall cycle threshold (CT) value of NPS and induced sputum samples. Legend: By ROC analysis, the area under the curve (AUC) for the overall CT value of the induced sputum samples was 0.604, with the best cutoff value at ≤ 32, sensitivity = 64.0% (95% CI, 49.2–77.1), specificity = 61.43% (95% CI, 49.0–72.8), and a p value = 0.0418 . The AUC for the overall CT value of NPS was 0.548, with the best cutoff value at ≤ 31.9, sensitivity = 58.0% (95% CI, 43.2–71.8), specificity = 55.71% (95% CI, 43.3–67.6), and p value = 0.3651

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