Table 4. Distribution of caries prevalence by age and sex.

*Mann-Whitney

†Chi-square

Significant p-value < 0.05

Primary dentition	Without caries	With caries	p-value
Age (years) (mean±sd)	7.97±2.37	6.56±1.97	z = 8.287
			p <0.0001 *
Sex	n (%)	n (%)
Girls	126 (33.2)	253 (66.8)
Boys	147 (35.0)	273 (65.0)	0.602 †
Permanent dentition	Without caries	With caries	p-value
Age (years) (mean±sd)	7.73±1.70	9.09±1.79	z = -8.615
			p < 0.0001
Sex	n (%)	n (%)
Girls	203 (67.6)	97 (32.3)
Boys	222 (69.1)	99 (30.8)	0.689†