The Community Assessment of Risk Instrument: Investigation of Inter-Rater Reliability of an Instrument Measuring Risk...

Area of Science:

• Gerontology
• Healthcare Risk Assessment
• Clinical Geriatrics

Background:

• Frailty is a growing concern in community-dwelling older adults, increasing their risk of adverse health outcomes.
• Current risk assessment practices in aged care lack detailed understanding of assessor decision-making and risk interpretation.

Purpose of the Study:

• To evaluate the inter-rater reliability of the Community Assessment of Risk Instrument (CARI), a novel risk assessment tool.
• To assess the CARI's effectiveness in predicting adverse outcomes such as institutionalization, hospitalization, and death.

Main Methods:

• A cohort study involving 50 community-dwelling older adults assessed by a geriatrician and a registered nurse.
• Utilized the CARI to score participants' risk for adverse outcomes, with reliability assessed using Gamma, Spearman, and Kappa statistics.
• Internal consistency was evaluated using Cronbach's alpha.

Main Results:

• The CARI demonstrated good to excellent agreement for most items across Mental State and Activities of Daily Living domains (Gamma >0.77).
• Global domain scores and risk scales for institutionalization (0.86) and death (0.78) showed strong inter-rater reliability.
• Lower reliability was observed for hospitalization risk (Gamma 0.29) and within the Medical state domain (Cronbach's alpha <0.51).

Conclusions:

• The CARI generally exhibits good inter-rater reliability for assessing frailty and associated risks in older adults.
• Variability in risk assessment, particularly for medical conditions, may stem from communication issues and differing professional interpretations.
• The instrument's findings suggest a need for standardized data communication and interpretation protocols in geriatric risk assessment.