Neutrophil to lymphocyte ratio is a novel independent predictor of severe exacerbation in asthma patients

Severe exacerbations are well-known complications of asthma, which increase the total and asthma-related health care costs1 and decrease the quality of life of patients2. Although some exacerbation predictors have been reported3,4, it is difficult to predict and prevent severe exacerbations in a large percentage of patients affected by asthma.

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