Alzheimer's disease(AD), a neurodegenerative disorder associated with aging, is the most prevalent form of dementia.As the aging population continues to expand, AD presents significant health and caregiving challenges for families and society, making it a pressing international public health concern.In recent years, numerous countries have implemented dementia prevention and treatment strategies that emphasize community-based comprehensive approaches.Currently, the community-based AD prevention and treatment model in China is still in the exploratory phase, with community efforts lacking organization.In alignment with China's action plan for advancing dementia prevention and treatment, and to achieve the strategic objective of "healthy aging, " this consensus is based on the principle of three-level prevention and is tailored to the characteristics of AD disease progression.It aims to develop a comprehensive prevention and treatment strategy for AD that is suitable for communities in China, providing technical guidance and support to establish a scientific basis for formulating community AD prevention and treatment models.

Alzheimer's disease(AD), a neurodegenerative disorder associated with aging, is the most prevalent form of dementia.As the aging population continues to expand, AD presents significant health and caregiving challenges for families and society, making it a pressing international public health concern.In recent years, numerous countries have implemented dementia prevention and treatment strategies that emphasize community-based comprehensive approaches.Currently, the community-based AD prevention and treatment model in China is still in the exploratory phase, with community efforts lacking organization.In alignment with China's action plan for advancing dementia prevention and treatment, and to achieve the strategic objective of "healthy aging, " this consensus is based on the principle of three-level prevention and is tailored to the characteristics of AD disease progression.It aims to develop a comprehensive prevention and treatment strategy for AD that is suitable for communities in China, providing technical guidance and support to establish a scientific basis for formulating community AD prevention and treatment models.

Objective:To investigate the clinical impact of wearable devices, specifically quantum microwave functional clothing, on elderly patients experiencing low back pain.Methods:This prospective cohort study recruited patients aged 60 and above who visited the Orthopedics Clinic of Beijing Hospital between November 25, 2021, and March 10, 2022, and presented with complaints of low back pain.Following the specified inclusion and exclusion criteria, a total of 40 patients were ultimately included in the study.These forty elderly patients with low back pain were randomly assigned to either an intervention group consisting of 20 cases(receiving conventional medical intervention along with wearing quantum micromagnetic wave functional clothing)or a control group of 20 cases(receiving only conventional medical intervention).Patients in the intervention group wore the quantum microwave functional clothing continuously for 24 hours a day throughout the 3-month study duration.The treatment effect was assessed using the visual analog scale(VAS), Oswestry disability index(ODI)scores, and lumbar spine MRI examination results.Intra-group and inter-group differences between patients in the intervention group and the control group were compared before and after treatment.Results:One patient in the control group withdrew from the study due to personal reasons, and 39 patients completed the clinical study.The comparison results of the VAS and ODI scores between the intervention and control groups at the initial and follow-up visits indicated a significant decrease in both VAS and ODI scores in the intervention group.The differences in the change of VAS scores(ΔVAS score)and ODI scores(ΔODI score)between the two groups were statistically significant( Z=-3.787, -3.884, both P<0.001).Soft tissue inflammation around the lumbar spine was assessed through lumbar spine MRI examination.Results revealed that in the control group, 13 cases(86.7%)showed no significant change in soft tissue inflammation and 2 cases(13.3%)improved; whereas in the intervention group, 5 cases(31.3%)showed no significant change and 11 cases(68.7%)improved.The improvement in soft tissue inflammation around the lumbar spine was significantly greater in the intervention group compared to the control group( χ2=9.764, P=0.002). Conclusions:In addition to conventional medical intervention, consistent use of quantum micromagnetic wave functional clothing for a period of 3 months has been found to effectively reduce low back pain in elderly individuals.

Objective:To assess the predictive performance of the risk of cardiovascular diseases (CVD) derived from the China Kadoorie Biobank (CKB-CVD) model, prediction for atherosclerotic cardiovascular disease (ASCVD) risk in China (China-PAR) model, and the risk of fatal and nonfatal ischemic cardiovascular diseases derived from the USA-People′s Republic of China Collaborative Study (USA-PRC) model in Chinese Multi-provincial Cohort Study (CMCS).Methods:In this prospective cohort study, a total of 21 948 individuals aged ≥35 years without CVD were selected from 8 provinces and cities in China during the CMCS survey from 1992 to 2005 for 10-year follow-up. The occurrence of CVD or ASCVD events during the follow-up period was used as the gold standard. The CKB-CVD and China-PAR models were used to calculate the predicted risk of CVD events, while the USA-PRC model was used to calculate the predicted risk of ASCVD events. The discrimination of the models was evaluated using the C-statistic, and the calibration was assessed using the Hosmer-Lemeshow χ2 test and decile plot. Results:During the 10-year follow-up, a total of 955 (4.4%) CVD events, including 791 (3.6%) ASCVD events, were recorded among the study participants. The C-index for the CKB-CVD, China-PAR, and USA-PRC models were 0.775 (95% CI: 0.757-0.793), 0.781 (95% CI: 0.763-0.798), and 0.769 (95% CI: 0.750-0.789) for men, and 0.762 (95% CI: 0.737-0.788), 0.769 (95% CI: 0.745-0.794), and 0.767 (95% CI: 0.741-0.794) for women, respectively. China-PAR model showed good calibration for men ( χ2=2.20), however, both CKB-CVD and USA-PRC models demonstrated poor calibration in both men and women ( χ2>20). The results indicated that the CKB-CVD model overestimated the risk of CVD events in both males and females, while the China-PAR model underestimated the risk in females. Furthermore, the USA-PRC model underestimated the risk of ASCVD in both males and females in most decile groups, but overestimated the risk in the highest decile group. Conclusion:The CKB-CVD, China-PAR, and USA-PRC risk assessment models show some degree of deviation from the actual risk of events in the CMCS cohort, but all exhibit good discrimination.

Objective:To analyze changes in nutritional status and immune function of elderly men receiving regular physical examinations, and to investigate the effects of aging on the nutritional status and immune function among elderly men.Methods:A total of 209 elderly men aged 60-101(72.9±11.5)years and receiving regular physical check-ups were enrolled.All research subjects were subjected to nutritional risk screening(NRS2002)and monitoring of nutrition and immune-related indicators, including routine blood work, blood biochemistry, immunoglobulin and T lymphocyte subsets.Results:Body weight, body mass index, hemoglobin, total protein, albumin and serum iron of elderly men decreased with age( F=21.754, 6.257, 47.528, 12.285, 18.397, 18.667, all P<0.001), with those aged 80 and above showing more significant decline and a greater proportion with malnutrition( χ2=77.134, P<0.001). The B lymphocyte counts of elderly men aged 80 and above were significantly lower( P<0.05)while serum IgA and IgG levels were significantly higher( F=3.110, 3.866, P=0.047, 0.022)than those of the 70-79 year old group.In addition, the B lymphocyte count and B lymphocyte ratio in malnourished elderly men were significantly lower( t=2.512, 2.874, P=0.013, 0.005), and IgA was significantly increased( t=2.513, P=0.017), compared with those with normal nutrition. Conclusions:The risk of malnutrition and reduced immune function among elderly men aged 80 years and above is significantly increased, and assessment and screening of the risk of malnutrition in the elderly should be stressed.

Objective:To investigate the correlation between decline of intrinsic capacity and falls in the elderly, in order to provide a new method and basis for fall risk assessment.Methods:A total of 125 elderly inpatients were selected between March 2019 and December 2019 for the survey.The intrinsic capacity of elderly inpatients was evaluated, and the history of falls in the past year were obtained through interviewing.The impact of intrinsic capacity on the risk of falls was analyzed by using logistics regression analysis.Results:Of 125 elderly patients, 37 had experienced falls in the past year, with an incidence of 29.6%(37/125). A decline of intrinsic capacity in varying degrees was found in 92.0%(115/125)of elderly patients and the average score of decline was 2.2(1.0, 3.0). The more intrinsic capacity decreased, the greater the risk of falls( OR=2.425, 95% CI: 1.132-4.848, P=0.016). After taking demographics into consideration, age( OR=1.786, 95% CI: 1.034-2.023)and decline of intrinsic capacity( OR=2.425, 95% CI: 1.132-4.848)were independent risk factors for falls. Conclusions:Decline of intrinsic capacity is closely related to the occurrence of falls.The five-dimension framework of intrinsic capacity provides new ideas and directions for predicting the risk of falls.

Objective To perform a systematic review of the literature on the cost-effectiveness of stroke rehabilitation care ,and to provide evidence for medical insurance payment and clinical decision making on stroke rehabilitation care. Methods We included published randomized controlled trails (RCTs)which compared rehabilitation care (RC)and usual care(UC)on stroke ,and summarized clinical outcome ,resource use ,costs ,and other indexes as outcomes of interest. Results Among included eight RCT studies ,the results of four models of stroke care were found as following. (1)Four studies involving early supported discharge(ESD)showed lower costs in rehabilitation care ,but similar(n＝3) or better(n＝1)clinical outcome. (2)Two studies involving home-based rehabilitation showed similar costs in one and lower costs in the other ,with no difference in clinical outcome between two trials. (3) One study involving stroke unit care showed higher costs and better clinical outcome. (4)One trial involving integration stroke service was associated with lower costs ,but no difference in the effectiveness. Conclusions For patients with stroke ,rehabilitation care leads to significant improvements on cost-effectiveness. Promoting the clinical use of rehabilitation care will bring about clinical benefits ,increase the efficiency of medical resources use ,and improve patient's quality of life.

Gut microbiota ,as the most important part of human microbial ecosystem ,develops with aging. For the past few years ,increasing studies focused on the potential association of microbiota with diseases and health of the total elderly population and found that multiple factors such as ageing , multiple medications ,life style ,diet ,etc.effectively affected the changes of gut microbiota.The changes of gut microbiota could be used in the future as a target for the comprehensive assessment ,dynamic surveillance or intervention therapy of frailty ,sarcopenia and chronic diseases. Therefore ,this review focused on gut microbiota composition ,influencing factors of gut microbiota ,the feature of gut microbiota in common geriatric diseases ,microbiota-based interventions therapy and the longevity microbial resources.