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Table 2 Distribution of number of patients with thyroid autoimmunity in the different karyotypes

From: Endocrine autoimmunity in Turner syndrome

Karyotype Number of patients within the karyotype group Number of patients with thyroid autoimmunity within the karyotype group(*) Percentage of patients with thyroid autoimmunity within the karyotype group Percentage of patients with thyroid autoimmunity in respect to the total group of patients
45,X 31 14 45.2% 21.2%
Mosaicism and others 29 7 24.1% 10.6%
X isochromosome 6 5(**) 83.3% 7.6%
  1. Autoimmunity prevalence is calculated over the total number of patients per karyotype and over the total 66 TS patients in each karyotype group(*). There was a statistically significant difference in the frequency of thyroid autoimmunity within the different karyotype groups (χ2-test p = 0.0173). When comparing the X isochromosome group with the pooled group of other karyotypes, of note, the frequency of thyroid autoimmunity was statistically higher in this group(**).