DOI: 10.36347/sasjm.2020.v06i11.001

Pages: 212-215

Attention-deficit/hyperactivity disorder (ADHD) is one of the most common Neurodevelopmental disorders in childhood and adolescence affects. Prevalence of ADHD among school-age children in different studies varies between 5% and 12% and declines with increasing age. ADHD is generally accepted as having a genetic basis but environmental influences have also been reported as contributing factors. Possible environmental risk factors reported for ADHD have included perinatal complications, these include maternal abuse of substances, prenatal and postnatal viral infections, prematurity, low birth weight, head injury during childhood and several socio-demographic factors such as maternal education, family income, gender, maternal age at pregnancy and emotional stress during pregnancy.