Table 4.

Contribution of genetic and environmental factors in the coaggregation of melanoma and SCC

Coaggregation modelGeneticFamily-shared environmentChildhood-shared environmentUnshared environment
Variance component estimates (95% CI)
Melanoma and SCC0.16 (0.15-0.18)0.13 (0.12-0.14)0.03 (0.01-0.04)0.03 (0.01-0.05)
Percentage of variance (95% CI)
Melanoma and SCC47 (43-51)36 (33-39)8 (4-13)8 (3-14)