Table 1.

Epidemiological and clinical features of paediatric patients in PED, followed by the contingency tables in which the performance of the AT is compared with PCR

	Sars-Cov-2 positive AT	Sars-Cov-2 negative AT	p
Female patients, n (%)	19 (63.3%)	69 (42.8%)	0.077
Male patients, n (%)	11 (36.7%)	92 (57.2%)
Median age, years (IQR)	5.8 (1.1–10.8)	4.5 (1.4–9.8)	0.74
Outcome
Admitted, n (%)	15 (50.0%)	65 (40.3%)	0.41
Discharged from emergency department, n (%)	15 (50.0%)	96 (59.7%)
Symptoms, n (%)	21 (71.0%)	134 (83.2%)	0.12
Fever (body temperature > 37.5 °C), n (%)	11 (36.6%)	75 (46.6%)	0.42
Dry cough, n (%)	6 (20.0%)	29 (18.0%)	0.80
Diarrhoea, n (%)	2 (6.7%)	25 (15.5%)	0.26
Dyspnoea, n (%)	0	17 (10.5%)	0.08
Sore throat, n (%)	1 (3.3%)	4 (2.5%)	0.58
Smell and taste dysfunction, n (%)	0	0
Abdominal pain, n (%)	3 (10%)	42 (26.1%)	0.06
Vomiting, n (%)	7 (23.3%)	53 (32.9%)	0.39
Rhinitis, n (%)	3 (10%)	29 (18.0%)	0.30
Hyporexia, n (%)	3 (10%)	23 (14.3%)	0.77
Conjunctivitis, n (%)	0	1 (0.6%)	1
Neurological manifestations, n (%)	2 (6.7%)	19 (11.8%)	0.54
Headache, n (%)	2 (6.7%)	8 (5.0%)	0.66
2 × 2 contingency table including all patients
		PCR positive	PCR negative
	AT positive, n	16	14
	AT negative, n	1	160
Sensitivity	94.1%
Specificity	91.9%
Positive likelihood ratio	11.7
Negative likelihood ratio	0.06
PPV	52.0%
NPV	99.4%
Accuracy	92.1%
K	0.63