In a study at Columbia University Mailman School of Public Health and the Robert N. Butler Columbia Aging Center researchers have devised a new metric, the «Health-Adjusted Dependency Ratio» (HADR) as an alternative to the most commonly used aging metric, the old-age dependency ratio (OADR).
Asia and Africa have an aging burden similar to the West
In a study at Columbia University Mailman School of Public Health and the Robert N. Butler Columbia Aging Center researchers have devised a new metric, the "Health-Adjusted Dependency Ratio" (HADR) as an alternative to the most commonly used aging metric, the old-age dependency ratio (OADR).