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Table 5 Haplotype frequency between children with TD and normal controls

From: Involvement of tryptophan hydroxylase 2 gene polymorphisms in susceptibility to tic disorder in Chinese Han population

Haplotypesa

Number and frequency (%)

χ 2

P

OR [95% CI]

 

TD childrenb

Normal controlsb

   

C-T

74(49.60)

72(57.53)

   

T-G

47(31.15)

33(26.33)

1.172

0.279

1.356 [0.781–2.356]

C-G

28(18.85)

20(15.67)

1.063

0.302

1.411 [0.732–2.718]

  1. aHaplotypes were constructed using rs4565946 and rs4570625 single-nucleotide polymorphisms, from left to right. No T-T haplotype was observed.
  2. b Percentages may not equal 100 because of rounding.