Table 1.

Dental caries in children aged 3-5 years old.

Age	N	dmft			Caries frequency			dt	mt	ft
		Mean ± Sd	t-value	P value	Percentage	χ 2	P value
3
Urban	201	2.46 ± 3.712	-3.856	0.000	53.7	15.323	0.000	2.35 ± 3.632	0.00 ± 0.000	0.11 ± 0.537
Rural	132	4.24 ± 4.367			75.0			4.17 ± 4.315	0.01 ± 0.087	0.06 ± 0.344
Male	169	3.29 ± 4.316	0.553	0.580	60.4	0.476	0.490	3.17 ± 4.215	0.01 ± 0.077	0.11 ± 0.493
Female	164	3.04 ± 3.815			64.0			2.98 ± 3.800	0.00 ± 0.000	0.07 ± 0.445
Total	333	3.17 ± 4.073			62.2			3.08 ± 4.011	0.00 ± 0.055	0.09 ± 0.470
4
Urban	209	3.68 ± 4.244	-6.284	0.000	64.1	29.705	0.000	3.23 ± 3.928	0.00 ± 0.069	0.45 ± 1.437
Rural	239	6.40 ± 4.894			86.2			6.23 ± 4.812	0.02 ± 0.129	0.15 ± 0.714
Male	230	5.56 ± 4.792	1.953	0.051	79.1	2.708	0.100	5.18 ± 4.675	0.02 ± 0.131	0.36 ± 1.290
Female	218	4.68 ± 4.763			72.5			4.45 ± 4.633	0.00 ± 0.680	0.22 ± 0.904
Total	448	5.13 ± 4.793			75.9			4.83 ± 4.664	0.01 ± 0.105	0.29 ± 1.120
5
Urban	232	4.73 ± 4.206	-6.528	0.000	81.0	16.886	0.000	4.03 ± 3.962	0.02 ± 0.185	0.68 ± 1.652
Rural	216	7.51 ± 4.820			94.0			7.07 ± 4.680	0.07 ± 0.347	0.37 ± 1.105
Male	229	6.10 ± 4.782	0.133	0.894	85.6	1.201	0.273	5.54 ± 4.635	0.05 ± 0.306	0.51 ± 1.362
Female	219	6.04 ± 4.660			89.0			5.46 ± 4.527	0.03 ± 0.242	0.55 ± 1.484
Total	448	6.07 ± 4.718			87.3			5.50 ± 4.578	0.04 ± 0.277	0.53 ± 1.422