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]