Table 2. Serum and BALF IL-17 and TGF-β1 levels in two asthma groups ( $\bar{x} \pm s$ , ng/L).

Group	n	Serum		BALF
Group	n	IL-17	TGF-β1	IL-17	TGF-β1
Control group	18	0.85±0.18	119±4	0.95±0.03	121±7
Asthma group	56	2.66±0.92	186±47	4.63±0.89	215±46
t value		8.287	5.856	17.518	8.520
P value		<0.001	<0.001	<0.001	<0.001

Table 2. Serum and BALF IL-17 and TGF-β1 levels in two asthma groups (x¯±s, ng/L).