Table 3

 Summary of phenotypes and genotypes of EVA subjects

EVA lateralityPerchlorate discharge resultNumber of mutant SLC26A4 alleles per subject
ZeroOneTwo
*One subject had a sibling with a normal perchlorate discharge result; †five subjects would likely have had an abnormal perchlorate discharge result: four had a goitre, and a fifth had two siblings with abnormal perchlorate discharge results.
UnilateralNormal230
UnilateralAbnormal000
UnilateralUnknown310
BilateralNormal270
BilateralAbnormal007
BilateralUnknown4*3*7†