표 1. | Table 1. 연구 참여자 정보 | Participants’ characteristics

			CWS		CWNS (N=30)
			Persistent (N=14)	Recovered (N=27)
Visit 1(Initial visit)	Post-onset of stuttering (months)		5.93 (4.21)	3.56 (2.69)	-
	Age (months)		42.29 (11.25)	38.15 (7.42)	43.37 (11.61)
	Stuttering severity score	Clinician	2.70 (1.70)	2.33 (1.17)	-
		Parent	3.71 (1.37), 3.25 (2.00)1)	3.37 (1.05), 3.00 (1.00)1)	-
Visit 3(1 year after the initial visit)	Age (months)		54.57 (11.34)	50.67 (7.50)	55.67 (11.76)
	Stuttering severity score	Clinician	1.95 (1.10)	1.03 (0.99)	-
		Parent	3.14 (1.42), 3.00 (2.00)1)	1.12 (0.77), 1.00 (1.00)1)	-
Visit 5(2 years after the initial visit)	Age (months)		66.79 (10.93)	62.41 (7.20)	67.60 (11.63)
	Stuttering severity score	Clinician	1.63 (0.89)	0.41 (0.62)	-
		Parent	2.57 (1.09), 2.50 (1.00)1)	0.80 (0.85), 0.50 (1.50)1)	-

Values are presented as mean (SD).
Mean (SD), median (interquartile range).
CWS, children who stutter; CWNS, children who do not stutter; Persistent, children whose stuttering was persisted; Recovered, children whose stuttering was recovered; Clinician, Illinois Clinician Stuttering Severity Scale score; Parent, Parent Severity Scale score.