Table 1.

Distribution of affected and unaffected individuals in NPC high-risk families (n = 265)

Total no. families
No. NPC subjects in family*
    169
    2155
    3-539
    >52
No. unaffected in family*
    ≤5107
    6-1093
    >1074
  • * These values reflect number of recruited cases within a family; All families have two or more affected individuals; however, most families had two or less cases recruited in this study.