Table 5. COVID-19 Radiographic Score on day 6-10 from symptom onset: Comparison between CRS_D6-10 at cut-off of 0 versus CRS_D6-10 at cut-off of 5.

CRSD6-10	Clinical outcome	Sensitivity	Specificity	PPV	NPV
Cut-off = 0	Supplemental O2	94.44 (88.74, 100.00)	63.64 (51.66, 76.61)	51.52 (39.08, 63.96)	96.55 (92.01, 100.00)
	ICU	100.00 (100.00, 100.00)	56.86 (44.53, 69.19)	33.33 (21.60, 45.07)	100.00 (100.00, 100.00)
Cut-off <5	Supplemental O2	88.89 (81.07, 96.71)	95.45 (90.27, 100.00)	88.89 (81.07, 96.71)	95.45 (90.27, 100.00)
	ICU	100.00 (100.00, 100.00)	86.27 (77.71, 94.84)	61.11 (48.98, 73.25)	100.00 (100.00, 100.00)

CRS_D6-10, COVID-19 Radiographic Score day 6–10 from symptom onset; PPV, positive predictive value; NPV, negative predictive value.