Table 2.
Incidence of molluscum contagiosum, and sensitivity, specificity, positive predictive value, and negative predictive value for the Molluscum Contagiosum Diagnostic Tool for Parents
| a) All participants regardless of confidence in diagnosis (n = 203) | ||
|
| ||
| % | 95% CI | |
|
| ||
| Incidence of MC | 30.5 (n = 62) | 22.9 to 35.8 |
| Sensitivity | 91.5 | 81.3 to 97.2 |
| Specificity | 88.2 | 81.8 to 93.0 |
| Positive predictive value | 76.1 | 64.5 to 85.4 |
| Negative predictive value | 96.2 | 91.4 to 98.8 |
|
| ||
|
b) Participants who indicated they were ‘very confident’ or ‘confident’ in their diagnosis (n = 158)
| ||
| % | 95% CI | |
|
| ||
| Incidence of MC | 30.4 (n = 48) | 23.3 to 38.2 |
| Sensitivity | 95.8 | 85.7 to 99.5 |
| Specificity | 90.9 | 83.9 to 95.6 |
| Positive predictive value | 81.2 | 69.9 to 91.1 |
| Negative predictive value | 98.0 | 93.1 to 99.8 |
MC = molluscum contagiosum.