OBJECTIVE: This study aimed to explore the association between body mass index (BMI) and mortality based on the 10-year population-based multicenter prospective study. METHODS: A general population-based multicenter prospective study was conducted at four sites in rural China between 2013 and 2023. Multivariate Cox proportional hazards models and restricted cubic spline analyses were used to assess the association between BMI and mortality. Stratified analyses were performed based on the individual characteristics of the participants. RESULTS: Overall, 19,107 participants with a sum of 163,095 person-years were included and 1,910 participants died. The underweight (< 18.5 kg/m ²) presented an increase in all-cause mortality (adjusted hazards ratio [ aHR] = 2.00, 95% confidence interval [ CI]: 1.66-2.41), while overweight (≥ 24.0 to < 28.0 kg/m ²) and obesity (≥ 28.0 kg/m ²) presented a decrease with an aHR of 0.61 (95% CI: 0.52-0.73) and 0.51 (95% CI: 0.37-0.70), respectively. Overweight ( aHR = 0.76, 95% CI: 0.67-0.86) and mild obesity ( aHR = 0.72, 95% CI: 0.59-0.87) had a positive impact on mortality in people older than 60 years. All-cause mortality decreased rapidly until reaching a BMI of 25.7 kg/m ² ( aHR = 0.95, 95% CI: 0.92-0.98) and increased slightly above that value, indicating a U-shaped association. The beneficial impact of being overweight on mortality was robust in most subgroups and sensitivity analyses. CONCLUSION This study provides additional evidence that overweight and mild obesity may be inversely related to the risk of death in individuals older than 60 years. Therefore, it is essential to consider age differences when formulating health and weight management strategies.
Humans ; Body Mass Index ; China/epidemiology* ; Male ; Female ; Middle Aged ; Prospective Studies ; Rural Population/statistics & numerical data* ; Aged ; Follow-Up Studies ; Adult ; Mortality ; Cause of Death ; Obesity/mortality* ; Overweight/mortality*

Objective:To comprehensively analyze the current research status, hotspots, and development trends in the field of fatigue in maintenance hemodialysis patients both domestically and internationally in order to provide reference for future research directions.Methods:Relevant literature on the fatigue status of maintenance hemodialysis patients from the establishment of the database to the publication before December 30, 2022 was retrieved through CNKI, VIP database, Wanfang database, and Web of ScienceTM core collection database, and visualized using CiteSpace 6.1.R3 for analysis.Results:A total of 152 Chinese articles and 110 English articles were included. Analysis showed that foreign publications were first published in 1996, while domestic publications were first published in 2011, and the number of publications has shown a significant upward trend since 2017. The research focus at home and abroad mainly focuses on the influencing factors and intervention measures of fatigue in dialysis patients. Foreign researchers have paid more attention to the correlation between "depression" emotions and the positive intervention of aerobic exercise. In addition, China is actively exploring traditional Chinese medicine therapy aromatherapy to alleviate patient fatigue.Conclusions:In the future, clinical workers should pay attention to fatigue assessment in maintenance hemodialysis patients and explore the influencing factors of fatigue through large-scale longitudinal studies, in order to better provide intervention targets for the treatment of fatigue; Simultaneously conduct high-quality prospective intervention studies to maximize the improvement of fatigue status in such patients and form standardized guidelines for promotion and application.