Prevalence of CD was higher in females with low/low genotypes (14.6%) than either low/high (6.2%) or high/high genotypes (5.7%) [x2 (df = 2) = 8.8, p = 0.01]. Within the sample, 41.6% had a high/high MAOA genotype, 45.3% had the heterozygous genotype and 13.1% were found to have a low/low genotype.
