The blood neutrophil to lymphocyte ratio correlates with clinical status in children with cystic fibrosis: a retrospective study.
retrospective_cohort · Level III
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- Record sourced from PubMed, PMID 24098587.
- Also identified by DOI 10.1371/journal.pone.0077420 and PMC identifier PMC2720115.
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Abstract
PURPOSE: The blood neutrophil to lymphocyte ratio (NLR) has been identified as a potentially useful marker of clinical outcome in disease states with an inflammatory component. The objective of this study was to evaluate the relationship between NLR and clinical status in children with cystic fibrosis. METHODS: This was a retrospective chart review. Data collected included NLR, body mass index, and forced expiratory volume in 1 second (FEV1) while asymptomatic, and during hospitalizations for pulmonary exacerbation. An NLR breakpoint of 3 was used for comparisons of body mass index and FEV1. RESULTS: A total of 159 charts were reviewed. An NLR ≥ 3 was significantly associated with lower body mass index and lower FEV1. NLR during hospitalization was significantly higher than NLR while asymptomatic. NLR measured during the first 3 months of life was negatively correlated with FEV1 at age 12. CONCLUSION: NLR correlates with clinical status in children with cystic fibrosis and may be a useful biomarker in this population.