Table 1 Main clinical and epidemiological characteristic of patients with multiple primary melanomas
Characteristics | No. | % | p value |
|---|---|---|---|
Total patients | 102 | ||
Gender | |||
Male | 47 | 46.1 | 0.546 |
Female | 55 | 53.9 | |
Median age at 1st CMM diagnosis (IQR range) | |||
Male | 55 (40–66) | – | 0.524 |
Female | 52 (42–60) | ||
No. of melanomas/patients | |||
2 | 86 | 84.3 | < 0.001 |
3 | 11 | 10.8 | |
> 3 | 5 | 4.9 | |
Presentation of MPMs | |||
Synchronous | 21 | 20.6 | < 0.001 |
Metachronous | 81 | 79.4 | |
Incidence of 2nd melanomas | |||
< 1 year | 37 | 36.3 | 0.098 |
> 1 year < 3 years | 41 | 40.2 | |
> 3 years | 24 | 23.5 | |
No. of total naevi | |||
< 20 | 28 | 27.5 | < 0.001 |
21–100 | 56 | 54.9 | |
> 100 | 18 | 17.6 | |
Fitzpatrick phototype | |||
I | 10 | 9.8 | |
II | 41 | 40.2 | < 0.001 |
III | 45 | 44.1 | |
IV | 6 | 5.9 | |
Sunburns in childhood | |||
Yes | 90 | 88.2 | < 0.001 |
No | 12 | 11.8 | |
Family history of melanoma | |||
Yes | 16 | 15.7 | < 0.001 |
No | 86 | 84.3 | |