Table 1.

Observed caries prevalence and distribution across age and sex

Characteristics	Total sample	Male	Female
Age group: 0–6 years
Sample size, n	580	292	288
Caries prevalence (d1)	0.32	0.34	0.29
Caries prevalence (d2)	0.29	0.31	0.27
d1ft	1.55 ± 3.13	1.69 ± 3.34	1.41 ± 2.91
d2ft	1.27 ± 2.59	1.40 ± 2.75	1.13 ± 2.42
Age group: 6–14years
Sample size, n	700	357	343
Caries prevalence (D1+d1)a	0.77	0.81	0.72
Caries prevalence (D2+d2)b	0.69	0.75	0.63
dlftb	2.35 ± 2.72	2.68 ± 2.93	1.98 ± 2.42
d2ftb	2.15 ± 2.61	2.46 ± 2.79	1.79 ± 2.33
D1MFT	1.88 ± 2.83	1.75 ± 2.73	2.02 ± 2.92
D2MFT	1.13 ± 1.85	1.01 ± 1.71	1.26 ± 1.97
Age group: 14–18years
Sample size, n	191	91	100
Caries prevalence (D1)	0.81	0.82	0.79
Caries prevalence (D2)	0.76	0.78	0.75
D1MFT	5.23 ± 5.26	5.62 ± 5.61	4.87 ± 4.92
D2MFT	3.92 ± 3.84	3.89 ± 3.48	3.95 ± 4.15
Age group: 18+ years
Sample size, n	1,129	419	710
Caries prevalence (D1)	0.96	0.96	0.96
Caries prevalence (D2)	0.96	0.95	0.96
D1MFT	10.26 ± 6.41	10.09 ± 6.44	10.36 ± 6.40
D2MFT	9.10 ± 5.86	8.95 ± 5.92	9.19 ± 5.83

D1 = Caries including white-spot lesions; D2 = caries excluding white-spot lesions. Test of mean sex difference:

^ap < 0.05

^bp < 0.01.