Of 260 participants, 73 were homozygous for high COMT activity (HH), 123 patients were heterozygous (HL), and 64 patient were homozygous for the low-activity variant (LL).

• 在260位受试者中，73位为高COMT活性（HH）同型合子，123位病患为异型合子（HL），而64位病患低活性基因变异同型合子（LL）。