Diagnostic accuracy of a set of clinical and radiological criteria for screening of COVID-19 using RT-PCR as the reference standard

Table 5 Frequency of reasons for hospitalization according to the proposed set of clinical-radiological criteria

Reasons for ICU admission, defined up to 24 h from admission	True negative n = 322	False positive n = 138	False negative n = 8
Pulmonary disease—n (%)	249 (77.3^a)	130 (94.2^a)	4 (50^a)
Pneumonia or sepsis of pulmonary source—n (%)	145 (58.2^b)	10 (76.8^b)	2 (25^b)
COPD—n (%)	48 (19.3^b)	7 (5.4^b)	0 (0^b)
Influenza—n (%)	14 (5.6^b)	2 (1.5^b)	0 (0^b)
SARF—n (%)^c	41 (16.5^b)	21 (16.2^b)	2 (25^b)
Tuberculosis—n (%)	1 (0.4^b)	0 (0^b)	0 (0^b)
Heart disease—n (%)^d	43 (13.4^a)	5 (3.6^a)	2 (25^a)
Extrapulmonary sepsis with acute lung injury—n (%)	30 (9.3^a)	3 (2.2^a)	2 (25^a)

Frequency of reasons for hospitalization of patients with false-positive and false-negative results and patients with a true negative diagnosis according to the proposed set of clinical-radiological criteria
n absolute frequency, % percentage, SARF severe acute respiratory syndrome, ICU intensive care unit
^aPercentage considering the total number of cases for each column
^bPercentage considering the total pulmonary reasons for each column
^cRespiratory failure due to causes other than COVID-19
^dAll patients had congestive heart failure

ISSN: 1471-2466