Identifying developmental delay in children earlier by a validated, reliable, parent-completed questionnaire like Ages and Stages Questionnaires and detecting risk factors for delay are crucial for primary care where their growth and development are monitored. Identifying developmental delay and early referral to rehabilitation services may help improve children's quality of life.

DD can be identified early during well-child visits. In such cases, it is critical for the health of the child and community to screen for possible risk factors, eliminate the causes, and refer families to rehabilitation services. What is known: • The causes of DD may be classified into prenatal, perinatal, and postnatal factors. • Early identification may improve later outcomes of DD. Most studies conducted on this topic have focused on prematurity. What is new: • This study focused on maternal, paternal, and sociocultural factors that may be associated with DD in early childhood in this study that was conducted on a community-based sample. • The risk of DD was increased by maternal age ≥ 35 years, maternal education level of primary school or lower, consanguineous marriage and delivery by cesarean section.