Reproducibility of cell counts in nasal lavage: a comparison of pooled versus non-pooled nasal lavage samples
نویسندگان
چکیده
Results A higher mean cell count was obtained using pooled lavage (means of 342 and 304 vs. 243 and 246, p=0000.4). The mean eosinophil percentage was comparable for both methods (for >100 cell count samples, 7% and 4% for single compared to 5% and 5% for pooled lavage, p=0.2). Single sample lavage produced a higher intraclass correlation (ICC) for eosinophil percentage (0.695 vs. 0.583). A cutoff of 100 total cells gave the most reproducible eosinophil % with ICC of >0.8. The ICC was 0.87 for single sample lavage and 0.81 for pooled lavage with >100 and 0.671 for SSL and 0.535 for MSL with >20 cells. Neutrophil (p=0.2), lymphocyte (p=0.2), monocyte (p=0.3), or basophil (p=0.3) percentages were not significantly different.
منابع مشابه
Reproducibility of neutrophil percentages in pooled and non-pooled nasal lavage samples
Results The mean (±SEM) neutrophil percentage was not significantly different between the two methods (80 ±12 for SSL, 86 ±8 for MSL, p=0.2). At a minimum total cell count (TCC) cutoff of ≥20, the neutrophil percentage intraclass correlation (ICC) was similar but not sufficiently reproducible for SSL at 0.588 compared to MSL at 0.641. For samples with TCC≥100, the neutrophil percentage ICC of S...
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