Research Article

Association Study between Promoter Polymorphism of TPH1 and Progression of Idiopathic Scoliosis

Table 1

Odds ratios of genotypes and alleles of tryptophan hydroxylase 1 (TPH1) polymorphism rs10488682 (T/A) in subgroups with different curve severity.

SubgroupGenotype, allele (case/control) valueOR [95% CI]

Progressive IS
Cobb angle > 40° 
(, )
TT versus AA5/17 versus 43/13511.10 0.37–3.22]
TT + TA versus AA41/75 versus 43/1350.071.61 0.97–2.69]
TT versus TA + AA5/17 versus 79/1930.820.89 0.31–2.54]
T versus A 46/92 versus 122/3280.161.34 0.89–2.03]

Nonprogressive or slowly progressive IS
Cobb angle < 40° 
(, )
TT versus AA2/17 versus 11/1350.621.71 0.34–8.53]
TT + TA versus AA10/75 versus 11/1350.481.54 0.62–3.79]
TT versus TA + AA2/17 versus 19/1930.641.47 0.31–6.98]
T versus A 12/92 versus 30/3280.331.43 0.70–2.90]

A value of was considered to be statistically significant. OR indicates odds ratio; CI, confidence interval; , number of patients; , number of controls.