Table 1

FRRs in Utah and Sweden

All first degreeOffspringSiblingsSpouses
AllEarly onsetRatioaAllOnset <50RatioAllOnset <50Ratio
Number of sites269917161617171717
Median FRR2.
  • a SIR, standardized incidence ratios.

  • a Ratio is the ratio of FRRs for early onset versus all index cases. In Utah, early onset is defined as before age 50 or age 60, depending on site.