The cardiothoracic ratio aids in the detection of cardiomegaly, or more broadly, enlargement of the cardiac silhouette. It is measured on a PA chest x-ray, and is the ratio of:
Disability around the World: It's estimated that more than 1 billion people live with a disability. (United Nations, 2013) This represents the worldâs largest minority, and the only minority group that any of us can become a member of at any time.
Facts About Specific Disabilities. An estimated 2.5 million people, or 1% of the population, have a developmental disability. In any one-year period, an estimated 51.3 million people, or 28% of the population, have a developmental disability. About 5 million people, or 2.8% of the adult population, have a severe developmental disability.