Table 2.

Comparisons between the pulmonary functions of tricyclists and non-tricyclists

Variables	Tricyclists (n=150)	Non-tricyclists (n=60)	t-value	p-value
FVC (L)	1.75 ± 0.78	3.0 ± 0.83	-10.364	<0.001*
FEV1(L)	1.65 ± 0.77	2.87 ± 0.84	-10.162	<0.001*
PEFR (L/second)	4.15 ± 2.21	4.78 ± 1.19	-2.636	0.009*
FEV1/FVC (%)	92.05 ± 11.83	90.77 ± 13.83	0.674	0.501