Table 3. Prevalence of clinically determined and self-reported dental caries (DMFT ≥1) with estimates of sensitivity, specificity, positive predictive value, negative predictive value, absolute bias, relative bias and inflation factor for members of 1993 birth cohort at 18 years of age, Pelotas, Rio Grande do Sul, Brazil, 2012.
| Prevalence of dental caries | ||
| Clinical % (95% CI) | Self-reported % (95% CI) | p-value1 |
| 66.5(63.6; 69.3) | 60.3(58.8; 61.8) | 0,001 |
1
chi-squared test.
2
positive predictive value.
3
negative predictive value.
4
absolute bias = tested prevalence – gold standard prevalence.
5
relative bias = underestimated true prevalence = absolute bias/gold standard prevalence X 100.
6
inflation factor = gold standard prevalence/tested prevalence.