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Table 1 Nasal nitric oxide cut-off values to discriminate between PCD and non-PCD groups using different analysers

From: Validation of a portable nitric oxide analyzer for screening in primary ciliary dyskinesias

  NIOX® Flex Breath-hold Niox Mino5ml/sec Niox Mino2ml/sec
Tidal breathing Tidal breathing
nNO cut-off value (nL/min) 38 30 43
Sensitivity% 100 100 100
Specificity% 95 95 93