CYP1A1 and Abnormal emotional state: The significant odd’s ratio indicates that psychological distress (OR:10.54; CI:3.72–29.84; P < 0.001), CYP1A1*4(OR:10.31; CI:3.01–35.24; P < 0.001) and CYP1A1*2C (OR:7.01; CI:1.78–27.56; P = 0.002) polymorphisms are risk factors for the development of abnormal sperm characteristics in male subjects.