Chronic kidney disease, a useful trigger for proactive primary care? Mortality results from a large U.K. cohort

Area of Science:

• Nephrology
• Public Health
• Geriatrics

Background:

• Primary care management of chronic kidney disease (CKD) often prioritizes cardiovascular risk.
• However, a significant proportion of CKD patients succumb to non-cardiovascular causes.
• Understanding these diverse mortality drivers is crucial for comprehensive CKD care.

Purpose of the Study:

• To investigate the causes of death in a large UK cohort of patients with established CKD.
• To inform future primary care management strategies for CKD.

Main Methods:

• Utilized the Grampian Laboratory Outcomes Mortality and Morbidity Study (GLOMMS-1) community cohort (identified 2003, followed 6 years).
• Linked CKD patient data with health care administrative data for causes of death from death certificates.
• Compared mortality causes in the CKD cohort to the general population, standardized for age and sex.

Main Results:

• Overall mortality in the CKD cohort was 4.7 times higher than the general population.
• Non-cardiovascular diseases constituted 50.9% of deaths, occurring 3.7 times more frequently than in the general population.
• In patients with stages 3-4 CKD and no baseline cardiovascular disease, non-cardiovascular causes accounted for nearly two-thirds of deaths. Dementia and falls were prominent causes in older CKD patients.

Conclusions:

• Mortality rates are significantly elevated in CKD patients, with non-cardiovascular diseases being the leading cause of death.
• Many identified non-cardiovascular causes of death are not easily preventable through current interventions.
• There is a need for improved methods to identify CKD patients who would benefit from interventions targeting cardiovascular disease or slowing renal disease progression.