BMC Oral Health

Table 1 Characteristics of Subjects

From: Changes in oral health indicators due to implementation of the National Health Insurance Services coverage for first molar dental sealant for children and adolescents in South Korea

Classification		Non-beneficiaries (2007–2009 year)		Beneficiaries (2013–2015 year)
Classification		N	Wt(%)^a	N	Wt(%)^a
Gender	Male	1574	51.9	1333	51.8
Gender	Female	1518	48.1	1258	48.2
Age	11–15 years	1902	53.9	1420	46.6
Age	16–20 years	1190	46.1	1171	53.4
Region	Urban	2516	83.8	2201	85.2
Region	Rural	576	16.2	390	14.8
Household income	I(lower)	386	13.7	327	13.6
	II (Lower-middle)	711	23.6	669	27.4
	III (Middle-upper)	956	31.8	817	30.9
	IV (Upper)	958	30.9	753	28.1
Father’s education level	Less than high school	200	71.7	192	57.9
Father’s education level	More than college	90	28.3	145	42.1
Mother’s education level	Less than high school	245	87.1	227	67.1
Mother’s education level	More than college	44	12.9	115	32.9

^aWeighted value

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ISSN: 1472-6831

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