Prevalence of dental caries and its association with body mass index among school-age children in Shenzhen, China

Cheng, Yi-hong; Liao, Yi; Chen, Ding-yan; Wang, Yun; Wu, Yu

doi:10.1186/s12903-019-0950-y

BMC Oral Health

Table 1 Number of participants and their dental caries status stratified by age, types of school, and sex

From: Prevalence of dental caries and its association with body mass index among school-age children in Shenzhen, China

	N			Prevalence of dental caries (%)					Mean dmft/DMFT score					Caries restoration rates (%)
	Boys	Girls	Total	Boys	Girls	Total	χ²	P value	Boys	Girls	Total	F/t value	P value	Boys	Girls	Total	χ²	p-value
Age (Years)
6	38,338	32,401	70,739	52.62	54.15	53.32			1.98	2.02	2.00			7.51	7.58	7.54
7	88,386	71,384	159,770	55.12	57.02	55.97			2.00	2.05	2.02			8.80	8.95	8.87
8	90,110	72,901	163,011	57.82	59.62	58.62			1.98	2.02	2.00			9.22	9.57	9.38
9	84,992	68,487	153,479	53.55	54.26	53.87			1.65	1.62	1.64			9.09	9.67	9.35
10	75,091	58,468	133,559	44.89	44.57	44.75			1.18	1.12	1.15			8.95	9.92	9.37
11	64,922	50,215	115,137	32.02	33.74	32.77			0.72	0.75	0.73			10.70	11.52	11.06
12	60,599	47,100	107,699	21.80	25.87	23.58			0.43	0.54	0.48			12.55	13.31	12.88
13	48,211	37,106	85,317	19.32	25.94	22.20			0.38	0.55	0.45			13.62	15.64	14.50
14	42,200	32,570	74,770	19.52	26.64	22.62			0.40	0.59	0.48			16.18	20.87	18.22
15	31,220	25,328	56,548	18.57	25.69	21.76			0.38	0.57	0.47			20.01	24.21	21.89
16	26,237	22,276	48,513	17.21	24.93	20.75			0.34	0.55	0.44			25.32	33.34	29.00
17	12,198	9692	21,890	17.36	24.58	20.56			0.36	0.56	0.45			28.49	35.23	31.47
18+	3224	2348	5572	17.25	24.02	20.10	112,617.0	< 0.001	0.35	0.53	0.43	11,346.9	< 0.001	24.98	25.17	25.06	15,876.6	< 0.001
BMI
Moderate malnutrition	29,545	19,165	48,710	50.08	51.55	50.66			1.65	1.65	1.65			9.21	10.49	9.72
Mild malnutrition	38,648	24,896	63,544	42.89	51.84	46.40			1.30	1.63	1.44			10.34	10.24	10.30
Normal	425,694	406,238	831,932	41.61	43.17	42.37			1.28	1.28	1.28			9.66	10.98	10.31
Overweight	95,514	46,360	141,874	33.16	37.77	34.66			0.94	1.09	0.99			10.29	11.85	10.85
Obese	68,857	28,784	97,641	33.21	37.27	34.41	7326.9	< 0.001	0.95	1.06	0.98	1576.8	< 0.001	10.08	10.49	10.21	55.4	< 0.001
Type of school
Public	424,856	344,130	768,986	36.04	39.00	37.36			1.09	1.14	1.11			10.86	12.81	11.73
Private	240,872	186,146	427,018	46.35	50.05	47.96	12,740.5	< 0.001	1.43	1.53	1.47	−88.9	< 0.001	8.32	8.38	8.35	3283.6	< 0.001
Total	665,728	530,276	1,196,004	39.77	42.88	41.15			1.21	1.28	1.24			9.78	10.96	10.30

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ISSN: 1472-6831

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