How common is sarcopenia associated with frailty? Diagnosis using the Kihon Checklist

Area of Science:

• Gerontology
• Public Health
• Clinical Medicine

Background:

• Japan faces a hyperaged society, increasing the prevalence of age-related conditions.
• Sarcopenia and frailty are significant geriatric syndromes impacting older adults' health.
• Understanding the comorbidity of sarcopenia and frailty is crucial for effective interventions.

Purpose of the Study:

• To determine the association between sarcopenia and frailty in community-dwelling older adults in Japan.
• To investigate the incidence of sarcopenia and frailty and their combined impact.
• To identify potential diagnostic markers for sarcopenia with frailty.

Main Methods:

• A cohort of 423 community-dwelling older adults (mean age 77.0 years) was studied.
• Sarcopenia was defined using the Asian Working Group for Sarcopenia 2019 criteria.
• Frailty was assessed using the Kihon Checklist (KCL) with a score of ≥7, and instrumental activities of daily living (IADL) were evaluated.

Main Results:

• The prevalence of sarcopenia alone was 1.9%, frailty alone was 26.7%, and both conditions were present in 6.1% of participants.
• Both sarcopenia and frailty were significantly associated with lower IADL scores.
• Cutoff values for KCL (7.000) and KCL-IADL (2.000) scores were determined for assessing sarcopenia with frailty.

Conclusions:

• Approximately 6.1% of older adults were diagnosed with sarcopenia with frailty using the KCL.
• The presence of sarcopenia and frailty significantly impairs instrumental activities of daily living (IADL).
• Interventions targeting both sarcopenia and frailty are recommended to prevent IADL decline in the elderly.