A Korean version of the Oral Impacts on Daily Performances (OIDP) scale in elderly populations: Validity, reliability and prevalence

Table 1 Socio-demographic characteristics of the Korean elderly subjects (n = 668)

Demographic information		Percent
Age	65–74 years	46.7
	over 75 years	53.3
Sex	male	49.1
	female	50.9
Household status	living alone	23.1
	living with your husband/wife	42.8
	living with children	33.7
	other	0.4
Education	no formal education	43.0
	primary school	42.8
	middle school	6.7
	high school	6.4
	college	1.0

ISSN: 1477-7525