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OBJECTIVES: Older people are at risk of undernutrition because of a number of physiological conditions and lifestyle factors. The purpose of this study was to explore the predictive relationship of corrected arm muscle area (CAMA) with 8‐year mortality in a representative sample of older Australians.

DESIGN: Prospective cohort study: The Australian Longitudinal Study of Ageing.

SETTING: Community.

PARTICIPANTS: One thousand three hundred ninety‐six participants aged 70 and older.

MEASUREMENTS: Trained observers measured baseline weight, height, mid upper arm circumference, and triceps skinfold thickness using standard techniques. Body mass index (BMI) and CAMA were calculated. Baseline BMI and CAMA measurements were categorized according to cutoff values proposed by Garrow et al. and Friedman et al., respectively. Subsequent analyses were undertaken using Cox proportional …