Table 1.

Clinical features of study subjects

Variables	Controls n = 20	Patients n = 20
Age	47.0 ± 14.2	60.4 ± 7.7
Gender
Male (%)	6 (30)	14 (70)
Female (%)	14 (70)	6 (30)
Smoking History
Never (%)	4 (20)	12 (60)
Current (%)	3 (15)	0 (0)
Past (%)	4 (20)	8 (40)
No data (%)	9 (45)	0 (0)
Genotype	MM = 20 (100)	ZZ = 20 (100)
PASD 3(%)	No biopsy	20 (100)
Fibrosis
3	No biopsy	6 (30)
2		10 (50)
1		4 (20)
Plasma AAT Levels (μM)	24.7 ± 4.9	13.8 ± 10.9

Data are expressed as mean (SD) or n (percentage)