Dehydration in black and white older adults using diuretics

Area of Science:

• Gerontology
• Public Health
• Clinical Medicine

Background:

• Dehydration is a significant health concern in older adults, potentially leading to increased morbidity and mortality.
• Ethnic disparities in health outcomes are well-documented, but specific factors contributing to dehydration diagnosis differences require elucidation.

Purpose of the Study:

• To investigate the association between ethnicity and dehydration diagnosis in older adults.
• To determine if diuretic use explains the observed disparity in dehydration diagnosis between Black and White individuals.

Main Methods:

• A case-control study was conducted using data from older adults (Black and White) in a pharmaceutical assistance program hospitalized in 1997.
• Cases (N=9186) were diagnosed with dehydration; controls (N=45585) were frequency-matched by sex and age.

Main Results:

• Diuretic use (loop, potassium-sparing, thiazide, combination) was associated with a higher likelihood of dehydration diagnosis.
• Black older adults had a significantly higher odds of dehydration diagnosis (OR=1.49, 95% CI, 1.36-1.63), independent of diuretic use.
• This association persisted for loop (OR=1.36) and thiazide diuretic users (OR=1.59), but not for other diuretic types.

Conclusions:

• While diuretic use is linked to dehydration diagnosis, it does not account for the higher diagnosis rates in older Black adults.
• The ethnic disparity in dehydration diagnosis is independent of diuretic use, suggesting other contributing factors.
• Further research is crucial to identify the root causes of this disparity and mitigate associated health risks.