Potential Support Ratio (PSR) is defined as
**Core Concept**
The Potential Support Ratio (PSR) is a measure used in geriatric care to assess the availability of caregivers or support personnel to meet the needs of an aging population. It is calculated by dividing the number of individuals aged 65 and older by the number of individuals aged 20-64 in a given population.
**Why the Correct Answer is Right**
The PSR is an important indicator of the burden of care on caregivers and the potential for community-based care. A lower PSR suggests a greater need for institutional care, while a higher PSR indicates a greater potential for community-based care and support. This ratio helps healthcare planners and policymakers to allocate resources effectively and develop strategies to support the aging population.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it does not accurately describe the Potential Support Ratio. The PSR is not a measure of the number of caregivers per capita, but rather a ratio of the number of older adults to the number of working-age adults.
**Option B:** This option is incorrect because it is not a valid definition of the Potential Support Ratio. The PSR is not a measure of the number of healthcare providers per capita, but rather a ratio of the number of older adults to the number of working-age adults.
**Option C:** This option is incorrect because it does not accurately describe the Potential Support Ratio. The PSR is not a measure of the number of healthcare facilities per capita, but rather a ratio of the number of older adults to the number of working-age adults.
**Clinical Pearl / High-Yield Fact**
A PSR of 1:5 or lower indicates a high burden of care on caregivers and a potential need for institutional care.
**Correct Answer:** D.