Table 1.

Summary of families recruited

Summary	Number
Total numbers of samples collected	4200
Total number of families (pedigrees) where recruitment took place	103
Total number of participants affected by keloids in all families	550
Number of affected keloid participants recruited from families	321
Total number of families with complete three generation pedigrees	79
Number of families with greater than 20 participants	9
Number of families with greater than 10 participants	27