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Table 2 Prevalence of clinically-determined and maternal-reported ECC with estimates of sensitivity, specificity, positive predictive value, negative predictive value, absolute bias, relative bias and inflation factor of children 0–5 years old, Ile-Ife, Nigeria 2018 (N = 1155)

From: Validation of maternal report of early childhood caries status in Ile-Ife, Nigeria

 

Clinically assessed

Maternally reported

Prevalence (95% CI)

4.6 (3.5–5.0)

3.4 (2.4–4.6)

P value of McNemar test

0.151

Sensitivity% (95% CI)

9.43 (3.1–20.7)

Specificity % (95% CI)

96.9 (95.7–97.9)

Positive predictive value % (95% CI)

12.8 (4.3–27.4)

Negative predictive value % (95% CI)

95.7 (94.3–96.8)

Absolute bias

− 1.2

Relative bias

26.1

Inflation factor

1.4

  1. Absolute bias = tested prevalence − gold standard (clinical assessment) prevalence
  2. Relative bias = absolute bias/gold standard (clinical assessment) prevalence × 100
  3. Inflation factor = gold standard (clinical assessment) prevalence/tested (maternal assessment) prevalence