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KMID : 1039620170070020258
Korean Journal of Family Practice
2017 Volume.7 No. 2 p.258 ~ p.263
Association between Dietary Protein Intake and Sarcopenia in Korean Elderly
Ju Hye-Jin

Bae Woo-Kyung
Jung Se-Young
Yang Ji-Hye
Song Jae-Kyeong
Lee Ki-Heon
Han Jong-Soo
Park Hwa-Yeon
Abstract
Background: Skeletal muscle mass loss is frequently observed with aging. A few studies have indicated that daily protein intake is associated with sarcopenia, but none has examined the Korean population. This study was conducted to analyze the association between dietary protein intake and sarcopenia in elderly Koreans.

Methods: Data were derived from the Fourth and Fifth Korea National Health and Nutrition Examination Survey (2008-2011). Participants included 2,118 men and 2,746 women aged 60 or older. Sarcopenia was defined as an appendicular skeletal muscle mass (ASM) divided by body weight less than 2 standard deviations below the sex-specific mean for young healthy adults. Daily protein intake was estimated with a 24-hour recall method. This study used multiple logistic regression to evaluate the association between dietary protein intake and sarcopenia, and multiple linear regression analysis to evaluate the association between dietary protein intake and ASM.

Results: The prevalence of sarcopenia was 7.27% in men and 8.46% in women. Univariate analysis showed that daily protein intake was negatively correlated with sarcopenia and positively correlated with ASM. After adjustment for age, sex, obesity, smoking, alcohol, comorbidities, and total energy intake, daily protein intake was not associated with either sarcopenia or ASM.

Conclusion: In elderly Koreans aged over 60 years, daily protein intake was not associated with sarcopenia or ASM.
KEYWORD
Sarcopenia, Appendicular Skeletal Muscle Mass, Protein Intake, Nutrition
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