Table A1.

Equation of calculating individual predicted value of lung function indicators developed by European Respiratory Society (ERS) in 1993.

Indicators	Equations
	Male	Female
FVC	0.0576 × (Height × 100) − 0.026 × Age − 4.34	0.0443 × (Height × 100) − 0.026 × Age − 2.89
FEV1	0.0395 × (Height × 100) − 0.025 × Age − 2.60	0.0430 × (Height × 100) − 0.029 × Age − 2.49