Efficacy of β2-adrenergic receptor agonist combined with corticosteroid in the treatment of children with cough variant asthma

Table 5 Comparison of inflammatory response between the two groups before and after treatment (mean ± SD)

Inflammatory response index	Pre-treatment		t	P value	Post-treatment		t	P value
	Observation group (n = 65)	Control group (n = 65)			Observation group (n = 65)	Control group (n = 65)
IL-6 (ng/L)	25.78 ± 5.18	25.32 ± 4.63	2.132	0.097	20.36 ± 4.54b	21.9 ± 5.47	1.891	0.012
IL-4 (ng/L)	24.6 ± 4.34	23.4 ± 3.65	1.267	0.258	20.8 ± 5.56b	22.8 ± 5.06	1.673	0.018
TNF-α (μg/L)	1.27 ± 0.32	1.28 ± 0.63	1.879	0.784	0.43 ± 0.25b	0.89 ± 0.48	2.693	0.014

^bP < 0.05 vs compare before and after intervention in the same group

IL-6: Interleukin-6; IL-4: Interleukin-4; TNF-α: Tumor necrosis factor-α.