Cognitive Impairment and Physical Dysfunction Associated With Unplanned Dialysis Initiation.

Area of Science:

• Gerontology
• Nephrology
• Health Economics

Background:

• Unplanned dialysis initiation (UDI) is linked to adverse patient outcomes and increased healthcare expenditures.
• Aging is a significant risk factor for UDI, yet the specific roles of age-related conditions like cognitive impairment and physical dysfunction are not fully understood.

Purpose of the Study:

• To investigate the association between cognitive impairment, physical dysfunction, and UDI in older adults.
• To quantify the additional medical costs associated with UDI in this demographic.

Main Methods:

• Analysis of a Japanese administrative claims database involving 79,850 patients aged 65 years and older initiating dialysis.
• UDI was defined by the use of a temporary catheter for dialysis initiation.
• Physical function and cognitive impairment were assessed based on mobility and daily living abilities, with statistical analysis using logistic and generalized linear regression models.

Main Results:

• UDI was observed in 20% of the study population.
• Increased odds of UDI were associated with lower physical function (ORs ranging from 1.58 to 2.22) and severe cognitive impairment (OR 1.26).
• The average additional medical cost per admission for UDI was $7178, with combined physical and cognitive impairments further elevating UDI risk and costs.

Conclusions:

• Older adults experiencing cognitive impairment and physical dysfunction exhibit a significantly higher risk of unplanned dialysis initiation.
• Targeted early interventions for these vulnerable populations could potentially mitigate the incidence of UDI and reduce associated inpatient care costs.