Table 3.
Accuracy and Agreement of Gold Standarda Exams and Primary Care Provider Exams.
| Comparison Measure | Visible Plaque Present |
Sensitivity (95% CI) |
Specificity (95% CI) |
PPV (95% CI) |
NPV (95% CI) |
Percentage Agreement |
κ (95% CI) |
|---|---|---|---|---|---|---|---|
| All exams, n = 121 | 61 (50%) | 55% (42-68) | 80% (67-89) | 75% (60-87) | 61% (49-73) | 67% | 0.34 (0.18-0.51) |
| High plaque scores,b,c n = 30 | — | 69% (49-85) | 71% (61-81) | 46% (30-61) | 87% (77-94) | 71% | 0.35 (0.03-0.46) |
| NPs or attending, n = 90 | 49 (54%) | 48% (33-63) | 80% (64-91) | 74% (55-88) | 55% (42-69) | 62% | 0.26 (0.08-0.45) |
| Children ≥3 years, n = 51 | 23 (45%) | 55% (32-76) | 79% (59-92) | 67% (41-87) | 69% (50-84) | 68% | 0.34 (0.08-0.60) |
| PCP performed ≥8 exams, n = 86 | 46 (54%) | 54% (39-69) | 74% (57-87) | 71% (54-85) | 57% (42-71) | 63% | 0.27 (0.08-0.47) |
Abbreviations: CI, confidence interval; PPV, positive predictive value; NPV, negative predictive value; NP, nurse practitioner; PCP, primary care provider; OHI-S, Simplified-Oral Health Index.
a
Dental hygienist.
b
OHI-S ≥2.
c
25% of children had a high plaque score.