Table 1. Comparison between the first spirometry from September 2022 and the complete spirometry from February 2023. In 2023, the patient still shows signs of an obstructive condition with a further reduction of the lung volumes and air trapping also due to poor therapeutic adherence.

FEV1%: percentage of predicted value of FEV1, FVC%: percentage of predicted value of FVC, PEF: peak expiratory flow, FEV1: maximum expiratory volume at first second, FVC: forced vital capacity, TLC: total lung capacity, RV: residual volume, RV/TLC: ratio of total lung capacity to residual volume expressed as a percentage of the predicted value, FEF25-75%: forced expiratory flow between 25% and 75% of FVC

FEV1%	FVC%	FEV1/FVC%	PEF	FEF25-75 %	RV	TLC	RV/TLC
71%	86%	89%	61%	35%	134%	88%	145%
66%	79%	82%	67%	39%	124%	93%	135%