Table 1

Demographics of study population

Beals data4 (50 patients) Current data (237 patients) Total (287 patients)
Gender
 Male31150181
 Female1987106
Site of involvement
 Right166076
 Left84048
 Bilateral26137163
No of affected subjects per family pedigree
 1108999
 276572
 3124456
 451318
 >4162642