TABLE 2.
Comparison of mean CSs between lesion types
| LESION TYPE 1 | n | MEAN CS (SD) | LESION TYPE 2 | n | MEAN CS (SD) | t-TEST | p-VALUE |
|---|---|---|---|---|---|---|---|
| Melanoma | 127 | 3.5 (1.8) | High-grade lesion | 48 | 2.7 (1.3) | 3.18 | 0.0019 |
| Melanoma | 127 | 3.5 (1.8) | Low-grade dysplastic nevus | 998 | 1.7 (1.5) | 10.48 | <0.0001 |
| Melanoma | 127 | 3.5 (1.8) | Non-dysplastic nevus | 217 | 1.6 (1.7) | 9.10 | <0.0001 |
| Melanoma | 127 | 3.5 (1.8) | Benign lesion (non-nevus) | 209 | 2.0 (2.2) | 6.44 | <0.0001 |
| High-grade lesion | 48 | 2.7 (1.3) | Low-grade dysplastic nevus | 998 | 1.7 (1.5) | 5.07 | <0.0001 |
| High-grade lesion | 48 | 2.7 (1.3) | Non-dysplastic nevus | 217 | 1.6 (1.7) | 4.65 | <0.0001 |
SD = standard deviation. p-value from Student’s t-test with unequal variance (Welch’s t-test). Using Bonferroni’s correction for multiple comparisons, p-values <0.05/15 = 0.0033 (bold) are statistically significant.