Validation of nasal tracheal aspiration in children with lung disease

BMC Pulmonary Medicine

Table 4 Statistics by diagnosis compared to other diagnoses

	Similarity	Sensitivity	Specificity	PPV	NPV
CF >< Rare lung disease
Coherence growth^a	0.099	0.011	0.504	0.060	0.928
Concordance bacteria^b	0.678	0.015		0.032
CF >< Airway malformation
Coherence growth	0.009	0.006	0.141	0.006	0.142
Concordance bacteria	0.123	0.015		0.015
CF >< other lung-related disease
Coherence growth	0.066	0.014	1	0.004	0.724
Concordance bacteria	0.377	0.528		0.753
Rare lung disease >< Airway malformation
Coherence growth	0.349	1	0.025	0.391	0.158
Concordance bacteria	0.273	0.647		0.910
Rare lung disease >< other lung-related disease
Coherence growth	0.792	1	0.518	0.260	0.655
Concordance bacteria	0.195	0.003		0.017
Airway malformation >< other lung-related disease
Coherence growth	0.57	1	0.161	0.630	0.074
Concordance bacteria	0.01	0.002		0.007

Bold: p-values ≤ 0.05 are statistically significant
PPV positive predictive value, NPV negative predictive value
^aCoherence growth: Agreement is only based on positive growth or not in NTA and BAL
^bConcordance bacteria: Complete concordance concerning pathogen bacteria between NTA and BAL

ISSN: 1471-2466