Fig. 2
From: Obstructive sleep apnoea accelerates FEV1 decline in asthmatic patients

Correlation between the apnoea-hypopnoea index (AHI) and the decline of FEV1 per year, % predicted
From: Obstructive sleep apnoea accelerates FEV1 decline in asthmatic patients
Correlation between the apnoea-hypopnoea index (AHI) and the decline of FEV1 per year, % predicted