Comparison of Respiratory Pathogen Detection in Upper versus Lower Respiratory Tract Samples Using the BioFire FilmArray Respiratory Panel in the Immunocompromised Host

Table 2

Concordance of the FilmArray Respiratory Panel when performed on paired NP swabs and BAL fluid specimens ().

Number (%) of specimens yielding concordant FilmArray results
NP and BAL both positive	20 (16.0%)
NP and BAL both negative	91 (72.8%)
Total	111 (88.8%)
Number (%) of specimens yielding discordant FilmArray results
NP positive, BAL negative	8 (6.4%)
NP negative, BAL positive	6 (4.8%)
Total	14 (11.2%)

BAL, bronchoalveolar lavage; NP, nasopharyngeal.