Diet and lifestyle habits associated with caries in deciduous teeth among 3- to 5-year-old preschool children in Jiangxi province, China

Table 1 Caries status among 3- to 5-year-old children of different genders, ages and residences

Variables		Number of participants	Caries status			Dmft
Variables		Number of participants	Prevalence (%)	χ ²	P	Mean ± SD	Z/H ^a	P
Gender	Boys	1488	48.86	0.093	0.395	2.30 ± 3.497	−0.305	0.760
Gender	Girls	1392	49.43	0.093	0.395	2.36 ± 3.605	−0.305	0.760
Age	3	952	37.29	97.132	0.000	1.42 ± 2.672	122.955	0.000
	4	978	50.31			2.41 ± 3.557
	5	950	59.79			3.15 ± 4.064
Residence	Urban	1428	42.37	51.866	0.000	1.79 ± 3.032	−8.156	0.000
Residence	Rural	1452	55.79	51.866	0.000	2.86 ± 3.922	−8.156	0.000
Total	–	2880	49.13	–	–	2.33 ± 3.549	–	–

^aData are non-normally distributed; non-parametric tests, including the Wilcoxon rank sum test and Kruskal-Wallis H test, were used

ISSN: 1472-6831