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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(**).