Figure 3From: YKL-40 is correlated with FEV1 and the asthma control test (ACT) in asthmatic patients: influence of treatmentCorrelation of serum YKL-40 levels with FEV 1 (a) and ACT score (b) at baseline visit. Note: FEV1, forced expiratory volume in one second; ACT, asthma control test.Back to article page