Table 4. Comparisons of ACT scores and CAT scores in ACOS patients with different disease severity and healthy controls before and after treatment.

Group	ACT score			CAT score
	Before treatment	After treatment	P	Before treatment	After treatment	P
Control	22.34 ± 3.26	22.47 ± 2.61	0.744	10.31 ± 1.13	10.47 ± 1.24	0.286
Mild ACOS	19.71 ± 3.45*	22.37 ± 3.08	0.010	13.14 ± 2.75*	10.72 ± 1.58	< 0.001
Moderate ACOS	18.87 ± 4.05*	21.75 ± 3.76	0.006	15.40 ± 4.08*	11.31 ± 1.38	< 0.001
Severe ACOS	15.53 ± 4.77*	18.64 ± 4.11†	0.003	27.23 ± 4.60*	16.29 ± 2.95†	< 0.001
Extremely severe ACOS	10.75 ± 1.46*	17.38 ± 1.82†	< 0.001	32.77 ± 5.83*	15.84 ± 4.16†	< 0.001

ACOS = asthma-chronic obstructive pulmonary disease overlap syndrome, COPD = chronic obstructive pulmonary disease, ACT = Asthma Control Test, CAT = COPD Assessment Test.

^*P < 0.05, compared with the control group before treatment; ^†P < 0.05, compared with the control group after treatment.