Does wealth make health? Cherchez la renal replacement therapy

Area of Science:

• Nephrology
• Public Health
• Epidemiology

Background:

• Socioeconomic status (SES) significantly impacts health outcomes.
• Understanding SES disparities in chronic kidney disease (CKD) is crucial for equitable care.
• Primary glomerulonephritis offers a unique model to study SES effects due to lower lifestyle confounding.

Purpose of the Study:

• To investigate the association between socioeconomic status and clinical outcomes in Scottish patients with primary glomerulonephritis.
• To determine if lower socioeconomic status influences mortality or progression to end-stage renal disease (ESRD).

Main Methods:

• Retrospective analysis of Scottish patients diagnosed with primary glomerulonephritis via renal biopsy.
• Comparison of mortality and renal replacement therapy (RRT) rates between different socioeconomic groups.
• Statistical analysis to identify significant differences in outcomes based on SES.

Main Results:

• Patients in the lowest socioeconomic category exhibited a twofold higher risk of death compared to higher SES groups.
• No significant differences were observed in the progression to ESRD requiring RRT across socioeconomic strata.
• Mortality differences were most pronounced during the renal replacement therapy (RRT) stage of CKD.

Conclusions:

• Socioeconomic status is a significant determinant of mortality in primary glomerulonephritis, even in a healthcare system with universal access.
• Medical management appears equitable regarding progression to ESRD, but mortality disparities persist.
• Further research into pre-ESRD care access and kidney transplantation optimization is warranted to address outcome inequalities.