What we should know about health problems in people with intellectual disability: Implications for health policy

Intellectual disability (ID) is characterized by significant limitations both in intellectual functioning (reasoning, learning, problem‑solving) and in adaptive behavior, which covers a range of everyday social and practical skills. This disability originates before the age of 18.[1] The prevalence of ID is about 1%–3% globally.[2] People with intellectual and developmental disability often experience more health problems due to some factors such as biological factors, lifestyle, and inaccessibility to the health care. Although ID is not a disease, it may result in some health problems, adversely affect quality of life, and level of accessibility to the health services.