Table 1.

Demographic characteristics (percentages) of participants.

Pacifier	Gender		Age in months	Schooling mother				Schooling father					Exposure to other languages
	Male	Female	Mean (range)	Middle school	High school	University	NA	Elementary school	Middle school	High school	University	NA
Never	50	50	78.3 (73–83)	17	50	33	0	17	17	50	17	0	50
Two	59	41	77.1 (69–83)	12	41	41	6	0	12	59	18	12	24
Two-Three	50	50	77.5 (69-83)	22	56	17	6	6	22	61	6	6	22
Three	60	40	77.2 (72–80)	40	20	40	0	0	20	20	60	0	20