Pain in Parkinson's Disease Associated with COMT Gene Polymorphisms

Table 2

COMT allele and PD with or without pain.

	PD with pain	PD without pain	𝜒^2	𝑃 value
rs4633
C	77 (0.70)	62 (0.738)	0.340	0.560
T	33 (0.30)	22 (0.262)
rs6267
G	86 (0.782)	76 (0.905)	5.227	0.022 *
T	24 (0.218)	8 (0.095)

Chi-square test, *𝑃<0.05. COMT: catechol-O-methyltransferase; PD: Parkinson’s disease.