Table 3.

Frequency of pulmonary dysfunction in exposed group of hookah smoke compared with the control group.

Spirometry pattern		Number of control group (% of total)	Number of the exposed group of hookah smoke (% of total)
Normal		235 (95.9%)	200 (81.6%)
Obstructive	Mild	0 (0%)	6 (2.6%)
	Moderate	0 (0%)	2 (0.8%)
	Severe	0 (0%)	16 (6.4%)
	Very severe	0 (0%)	1 (0.4%)
	Total	0 (0%)	25 (10.2%)
Restrictive	Mild	7 (2.9%)	4 (1.5%)
	Moderate	3 (1.2%)	6 (2.6%)
	Severe	0 (0%)	8 (3.3%)
	Very severe	0 (0%)	0 (0%)
	Total	10 (4.1%)	18 (7.4%)
Mixed		0 (0%)	2 (0.8%)
Total		245	245