잠시만 기다려 주세요. 로딩중입니다.

Trajectories of Body Mass Index and Their Associations with Mortality among Older Adults in Korea: Analysis of the Korean Longitudinal Study of Aging

Annals of Geriatric Medicine and Research 2020년 24권 3호 p.195 ~ 203
공종원, 박태규, 이동률, 이정운,
소속 상세정보
공종원 ( Kong Jong-Won ) - Wonkwang University School of Medicine Wonkwang University Sanbon Hospital Department of Family Medicine
박태규 ( Park Tae-Gyu ) - Wonkwang University School of Medicine Wonkwang University Sanbon Hospital Department of Family Medicine
이동률 ( Lee Dong-Ryul ) - Wonkwang University School of Medicine Wonkwang University Sanbon Hospital Department of Family Medicine
이정운 ( Lee Jung-Un ) - Wonkwang University School of Medicine Wonkwang University Sanbon Hospital Department of Family Medicine

Abstract


Background: Weight change is a known risk factor for mortality. Previous Korean studies only considered mortality consequences of weight change between two time points over relatively short periods. This study investigated whether body mass index (BMI) trajectory patterns were associated with all cause-mortality based on continuous BMI observations during a 10-year follow-up period among Korean older adults.

Method: This study analyzed data from the 2006?2016 Korean Longitudinal Study of Aging database. The participants included in this study were 3,478 people aged 65 years or older who had no previous cancer history. A trajectory model was developed to classify different homogeneous trajectory subgroups according to BMI, and Cox proportional hazards models were used to investigate the association of BMI trajectory with all-cause mortality.

Result: We identified four trajectory groups: obese (OG); overweight (OWG); high normal weight (HNWG); and low normal weight (LNWG). The LNWG and HNWG experienced continuous weight loss during the study period. Trajectories with higher BMI were associated with lower mortality. The adjusted hazard ratios (95% confidence intervals) for all-cause mortality in the LNWG, HNWG, and OWG were 2.40 (1.69?3.40), 1.75 (1.26?2.45), and 1.38 (0.99?1.96), respectively, compared with those in the OG.

Conclusion: We found that the lower the BMI of the weight trajectory group, the higher the mortality over 10 years in Korean older adults. This result suggested that baseline obesity status and degree of weight loss during follow-up contributed to mortality in later life.

키워드

Body mass index; Body-weight trajectory; Mortality; Aged; Korean

원문 및 링크아웃 정보

등재저널 정보