Study population (number of patients and their mean age) presented per diagnosis and as a total
| Diagnosis | n (%) | Mean age (years) | p Value* (age) | p Value† (diagnosis) |
|---|---|---|---|---|
| Keratoacanthoma total | 22 | 74 | ||
| HPyV-positive | 10 (45%) | 76 | 0.43 | |
| HPyV-negative | 12 (55%) | 72 | 0.71 | |
| Spitz naevus total | 25 | 24 | ||
| HPyV-positive | 10 (40%) | 33 | 0.29 | |
| HPyV-negative | 15 (60%) | 20 | ||
| Total | 47 | 49 | ||
| HPyV-positive | 20 (43%) | 54 | ||
| HPyV-negative | 27 (57%) | 43 |
*Age differences between HPyV DNA positive and negative patients within each diagnosis group.
†Differences in HPyV DNA prevalence between KA and SN.