Table 3.

Relative risk assessment for baseline caries as predictor and caries incidence after 5 years as outcome

Variable	Baseline		After 5 years				P value†and relative risk
			Dental caries		Caries free
	n	%	n	%	n	%
Dental caries	85	4.6	85	100	-	-	P<0.001
Caries Free	1745	95.4	464	26.6	1281	73.4	RR=3.78
Total	1830	100	549	30.0	1281	70.0	3.48<RR<4.10

^†Two tailed statistical significance at the 5% level.