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Plant Proteins in Relation to Health-related Quality of Life in South Korean Individuals Aged 50 Years or Older: Korea National Health and Nutrition Examination Survey 2016-2018

50세 이상 한국인의 식물성 단백질 섭취와 건강 관련 삶의 질과의 연관성: 국민건강영양조사 2016-2018

  • Jun, Sook-Hyun (Dept. of Human Ecology, Korea University Graduate School, and Interdisciplinary Program in Sustainable Living System, Korea University Graduate School) ;
  • Lee, Jung Woo (BK21 Research & Education Center for Sustainable Living System, Korea University) ;
  • Shin, Woo-Kyoung (Dept. of Preventive Medicine, College of Medicine, Seoul National University) ;
  • Kim, Yookyung (Dept. of Home Economics Education, Korea University)
  • 전숙현 (고려대학교 대학원 생활과학과, 고려대학교 대학원 지속가능생활시스템융합전공) ;
  • 이정우 (고려대학교 BK21 지속가능생활시스템융합교육연구단) ;
  • 신우경 (서울대학교 의과대학 에방의학교실 ) ;
  • 김유경 (고려대학교 가정교육과)
  • Received : 2022.10.20
  • Accepted : 2022.12.06
  • Published : 2022.12.31

Abstract

This study aimed to investigate the association between plant protein intake and health-related quality of life (HRQoL) in Korean individuals aged 50 years or older. Using the 2016-2018 Korea National Health and Nutrition Examination Survey data, 7,956 participants (3,434 men and 4,522 women) were included in the study. HRQoL was measured using the Euro-quality of life five-dimension (EQ5D), composed of physical function, self-care, daily activities, pain/discomfort, and anxiety/depression problems. The EQ5D estimates were converted into an EQ5D index score. The association between daily intake of plant proteins and HRQoL was evaluated using regression analysis. The intake of total plant protein, legume nut seed (LNS), and fermented bean (FERMB) proteins were all positively associated with HRQoL in both men and women (p < 0.01). Of EQ5D's five dimensions, physical function and daily activities were most commonly associated with plant protein intake. Compared to LNS protein or FERMB protein intake, total plant protein intake showed a better association with HRQoL. In conclusion, a significant association was observed between plant protein intake and HRQoL. It suggests that adequate intake of plant protein might be helpful for the maintenance or improvement of HRQoL in Korean adults.

본 연구에서는 50세 이상 한국인을 대상으로 식물성 단백질 섭취와 건강관련 삶의 질과의 연관성을 분석하였다. 2016~2018년 국민건강영양조사 자료를 이용하여 7,956명(남성 3,434명, 여성 4,522명)이 연구에 포함하였다. 건강관련 삷의 질은 신체 기능, 자기 관리, 일상 활동, 통증/불쾌감, 불안/우울 문제로 구성된 삶의 질 5차원 지표(EQ5D)를 사용하여 측정하였다. 식물성 단백질 일일 섭취량과 건강관련 삶의 질 사이의 연관성은 회귀 분석을 사용하여 평가하였다. 총 식물성 단백질, 콩과 견과류 종자(LNS) 및 발효 콩(FERMB) 단백질의 섭취는 남성과 여성 모두에서 건강관련 삷의 질과 건강관련 삷의 질과 유의미한 연관이 있었다(p < 0.01). EQ5D의 지표 중 신체 기능과 일상 활동이 식물성 단백질 섭취와 가장 밀접한 관련이 있었다. LNS 단백질이나 FERMB 단백질 섭취에 비해 총 식물성 단백질 섭취가 건강관련 삷의 질과 더 큰 연관성을 보였다. 결론적으로, 식물성 단백질 섭취와 건강관련 삷의 질 사이에는 유의미한 연관성이 있었다. 이는 식물성 단백질의 적절한 섭취가 한국 성인의 건강관련 삷의 질 유지 또는 개선에 도움이 될 수 있음을 시사한다.

Keywords

Acknowledgement

This research was supported by the College of Education, Korea University Grant, 2022.

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