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Table 3 Comparison of distribution of phenotypes in Caucasians and Hispanics

From: Comparison of genome-wide single-nucleotide polymorphism linkage analyses in Caucasian and Hispanic NARAC families

  Caucasians Hispanics
Phenotypes mean ± SD median mean ± SD median
Age at onset (yr) 39.35 ± 13.38 39 34.48 ± 12.42 35
Anti-CCPa 107.51 ± 79.44 111 120.20 ± 72.66 139
RF-IgMa 255.06 ± 568.52 77 319.10 ± 386.38 127.5
Shared epitopes 84.55% 71.88%
  1. aSee Criswell et al. [9] for details on sample quantitation