Rapid point-of-care detection of SARS-CoV-2 infection in exhaled breath using ion mobility spectrometry: a pilot study

Table 4 Differentiation of breath gas samples by decision tree analysis

Area	N	Sensitivity (%)	Specificity (%)
Lung (PP-L)	361	82.9	85.5
Throat (PP-R)	370	85.4	84.9
Lung and Throat (PP)^a	360	82.8	85.5
Lung (ITT-L)	380	84.4	80.9
Throat (ITT-T)	380	83.9	82.5
Lung and Throat (ITT)^a	380	85.5	83.0

Decision trees were calculated as described in “Materials and methods” section (“Data Analysis and statistics”)
PP per protocol, ITT intention-to-treat
^aCombination by arithmetic mean

ISSN: 2047-783X