. 2015 Jul 22;15:82. doi: 10.1186/s12903-015-0066-y

Table 1.

Descriptive statistics for demographics and covariates, and bivariate associations with ECC

Demographics and covariates		% (N)	% of ECC¹
Gender
	Boys	55.6 (476)	25.6^a
	Girls	44.4 (380)	23.7^a
Dental check-up in previous 12 months
	Yes	44.9 (384)	35.9^a
	No	55.1 (472)	15.7^b
Child’s frequency of tooth brushing
	<3 times a day	74.2 (635)	23.6^a
	3 times a day	25.2 (216)	27.8^a
	Missing	0.6 (5)	-
Parental frequency of tooth brushing
	< 3 times a day	65.2 (558)	29.9^b
	3 times a day	33.2 (284)	21.7^a
	Missing	1.6 (14)	-
Parental presence at most recent tooth brushing
	Yes	86.7 (742)	22.9^a
	No	12.9 (110)	37.3^b
	Missing	0.5 (4)	-
Parents in agreement on child’s tooth brushing practices
	Yes	84.5 (723)	23.1^a
	No	14.8 (127)	34.6^b
	Missing	0.7 (6)	-
Way children fell asleep previous night
	With water/nothing	72.0 (616)	26.0^a
	With milk	24.5 (210)	21.0^a
	With sugar-based drink	2.6 (22)	22.7^a
	Missing	0.9 (8)	-
Information given by pediatrician regarding ECC
	Yes	48.5 (415)	23.4^a
	No	51.3 (439)	26.0^a
	Missing	0.2 (2)	-

¹Row percentages. For example: A total of 25.6 % of the boys had ECC

^{a, b}For significant Fischer’s exact test, a same subscript letter within a column denotes that proportions did not differ; two different subscript letters denote that proportions differed at the 0.05 level