Objective To understand the prevalence of overweight and obesity and its influence factors in Zhuhai inhabitants. Methods Applying multi-stage cluster random sampling in the three administrative areas of Zhuhai including Xiangzhou, Doumen and Jinwan, A questionnaire-based survey was performed in conjunction of the measurement of height and weight among 961 inhabitants aged 15-69 years. In addition, a multivariate unconditional logistic regression model was employed to analyze the influence factors of overweight and obesity. Results The prevalence and standardized rates of overweight and obesity in the study population were 18.1%, 17.6%, 6.6%, 6.5%, respectively. The standardized rates of overweight and obesity in male and female were 18.4%, 5.8%, 16.5%, 7.2%, respectively. Age, drinking, smoking and regional difference were identified as the 4 risk factors of overweight and obesity, their OR values being 1.028, 1.683, 0.677, 1.404, Plt;0.05, respectively. Conclusion The prevalence of overweight and obesity in Zhuhai’s inhabitants was over the average level of Chinese residents, and overweight and obesity has become a major risk factor influencing the health of Zhuhai’s inhabitants. In view of the influence factors of overweight and obesity, timely and effective prevention and control measures should be taken.
Objective To systematically review the efficacy and safety of a very low-calorie ketogenic diet (VLCKD) in patients who were overweight or obese. Methods From inception to August 2021, the electronic databases PubMed, EMbase, Web of Science, The Cochrane Library, CNKI, WanFang Data, VIP, and CBM were searched for randomized controlled trials (RCTs) of VLCKD in patients with overweight or obesity. Two reviewers independently screened the literature, extracted data, and evaluated the risk of bias of the included studies. Then, meta-analysis was performed using Stata 16.0 software. Results A total of 5 RCTs involving 245 patients were included. Among patients with baseline body mass index (BMI) ≥30 kg/m2, the meta-analysis showed that compared with the control group, VLCKD could significantly reduce the BMI (MD=?0.24, 95%CI ?0.39 to ?0.08, P<0.05), weight (MD=?7.00, 95%CI ?10.48 to ?3.53, P<0.05) and waist circumference (MD=?7.40, 95%CI ?12.68 to ?2.12, P<0.05) . The subgroup analysis results showed that compared with the control diet, VLCKD could significantly reduce the glucose (MD=?9.60, 95%CI ?17.52 to ?1.69, P<0.05), glycated hemoglobin (MD=?0.24, 95%CI ?0.39 to ?0.08, P<0.05), insulin resistance index (MD=?0.90, 95%CI ?1.08 to ?0.73, P<0.05) and triglycerides (MD=?41.42, 95%CI ?53.78, ?29.06, P<0.05) in patients with type 2 diabetes and with obesity or overweight. In patients with obesity or overweight, VLCKD could increase high-density lipoprotein cholesterol (MD=8.60, 95%CI 0.17 to 17.03, P<0.05) when the intervention lasted longer than 12 months. In patients with obesity or overweight, VLCKD had no effect on insulin, total cholesterol, low-density lipoprotein, urea, creatinine, or uric acid. Patients with VLCKD had a higher rate of adverse events than those in the control groups; however, there was no significant difference in the rate when the intervention lasted longer than 4 months. Conclusion The current evidence shows that VLCKD can reduce BMI, weight, and waist circumference and reduce fasting glucose, HbA1c, insulin resistance index, and triglycerides among patients with type 2 diabetes and with obesity or overweight. However, VLCKD has no effect on insulin, total cholesterol, low-density lipoprotein, urea, creatinine, or uric acid. Due to the limited quantity and quality of the included studies, more high-quality studies are needed to verify the above conclusion.
目的:了解成都市3~6歲學齡前兒童超重、單純性肥胖發展趨勢和干預效果,以尋求更有效的干預措施。方法:自2000~2007年對成都市五城區所有一類托幼園所3~6歲兒童進行調查,對其超重、肥胖發生、發展動態趨勢進行分析研究,并設重點干預點進行連續干預監測。參照WHO標準,應用身高別體重法評價兒童超重和肥胖。結果:2000~2005年中,成都市學齡前兒童超重、單純性肥胖發生率顯著升高(2000年為6.50%、2.14%;2005年為9.57%,4.39%,Plt;0.001);通過對托幼園所實施肥胖干預后,2005~2007年兒童超重、單純性肥胖檢出率處于穩定控制狀態(2007年為9.13%,4.17%,Pgt;0.05)。2005~2007年對本市15所托幼機構實施重點干預后,兒童超重、肥胖檢出率為8.51%,3.26%,明顯降低(Plt;0.05),而一般干預點,超重、肥胖發生率明顯升高(10.42%,5.12%,Plt;0.05)。結論:學齡前兒童超重、單純性肥胖呈上升趨勢,有效的干預措施能控制超重和肥胖發生率。
ObjectiveTo systematically review the intervention effects of high-intensity interval training (HIIT) on weight loss and blood lipid metabolism in overweight/obese populations. MethodsThe computer conducted searches in the PubMed, Embase, Cochrane Library, Web of Science, CNKI, and WanFang Data database to collect randomized controlled trials (RCTs) related to HIIT and weight loss, fat reduction, and blood lipid metabolism in overweight/obese populations. The search was conducted from the inception of the databases to March 31, 2023. Two researchers independently conducted literature screening and data extraction. After evaluating the risk of bias of the included studies, a meta-analysis was performed using RevMan 5.4 software. ResultsA total of 19 RCTs, involving 595 overweight/obese participants, were included. The meta-analysis results showed that compared wtih the control group, HIIT interventions effectively reduced body weight (MD=?2.63, 95%CI ?4.04 to ?1.23, P<0.05), BMI (MD=?1.21, 95%CI ?1.95 to ?0.48, P<0.05), Fat% (MD=?1.66, 95%CI ?2.28 to ?1.04, P<0.05), TG (MD=?0.13, 95%CI ?0.25 to ?0.01, P=0.04), HDL (MD=0.14, 95%CI 0.05 to 0.23, P<0.05), and LDL (MD=?0.26, 95%CI ?0.39 to ?0.13, P<0.05) levels but did not improve TC (MD=?0.15, 95%CI ?0.36 to 0.06, P=0.15) levels. ConclusionHIIT intervention can effectively improve body weight, BMI, Fat%, TG, HDL, and LDL levels in overweight/obese populations, particularly showing a more pronounced improvement in lipid profiles among overweight/obese adolescents, but it does not reduce TC levels. This study demonstrates that HIIT may be an effective strategy to assist in weight loss and prevent cardiovascular diseases in overweight/obese populations, with potential for broader application.
ObjectiveTo systematically review the impact of different electronic health technologies on weight loss outcomes in overweight and simple obesity populations. MethodsThe Cochrane Library, Embase, PubMed and WOS databases were electronically searched to collect randomized controlled trials (RCTs) related to the objectives from inception to May 2024. Two reviewers independently screened literature, extracted data and assessed the risk of bias of the included studies. Meta-analysis was then performed by using RevMan 5.4 and Stata 18 software. ResultsA total of 9 RCTs involving 2 416 patients with overweight or simple obesity were included. The meta-analysis results showed that body weight (MD=?0.81, 95%CI ?1.1 to ?0.52, P<0.001), BMI (MD=?0.63, 95%CI ?0.89 to ?0.37, P<0.001), waist circumference (MD=?1.06, 95%CI ?1.70 to ?0.42, P<0.001) and energy intake (SMD=?0.44, 95%CI ?0.75 to ?0.13, P=0.005) in the e-health technology group were significantly improved compared with the control group. But there was no statistically significant difference in physical activity between two groups. ConclusionThe available evidence suggests that e-health technology is an effective tool for weight loss. Due to the limited quality and quantity of the included studies, more high quality studies are needed to verify the above conclusion.
ObjectiveTo systematically review the association between overweight, obesity, abdominal obesity, and cognitive impairment (CI) in the elderly. MethodsThe CNKI, WanFang Data, VIP, CBM, PubMed, Web of Science, Embase, and Cochrane Library databases were electronically searched for studies on the relationship between overweight, obesity/abdominal obesity, and CI in the elderly from their inception to July 2024. Two researchers independently screened the literature, extracted data, and assessed the risk of bias of the included studies. Meta-analysis was performed using Stata 15.0 software. ResultsA total of 38 studies involving 1 783 087 subjects were included. Meta-analysis results showed that compared with normal-weight individuals, overweight (OR=0.96, 95%CI 0.91 to 1.02, P=0.201) was not statistically significant in the risk of CI in the elderly. Obesity (OR=1.14, 95%CI 1.02 to 1.28, P=0.03) and abdominal obesity (OR=1.16, 95%CI 1.11 to 1.21, P<0.001) may be risk factors for CI in the elderly. Subgroup analysis was conducted based on study type, BMI standards, cognitive diagnostic standards, national development level, abdominal obesity diagnostic standards, and follow-up time. Among the subgroups analyzing the correlation between overweight and CI in the elderly, follow-up time ≤5 years (OR=0.68, 95%CI 0.58 to 0.80) showed a lower proportion of CI compared to other follow-up periods. In the subgroups analyzing the correlation between obesity and CI in the elderly, follow-up time ≤5 years (OR=0.71, 95%CI 0.50 to 1.01) was not statistically significant compared to other follow-up periods. For abdominal obesity, a significant association with increased CI risk in the elderly was found only in the subgroup with a follow-up time of 5-10 years (OR=1.21, 95%CI 1.15 to 1.27), compared with other follow-up periods. ConclusionCurrent evidence suggests that obesity and abdominal obesity may increase the risk of CI in the elderly. Proper weight management is crucial for preventing and delaying the progression of CI in the elderly.
Orlistat, which has a new mechanism of action, is currently the only approved weight-loss drug in China. In addition to controlling body weight, orlistat can significantly improve blood glucose, blood pressure, dyslipidemia, adiponectin, insulin concentration and other obesity-related biochemical indicators in patients with overweight/obese. Recently, orlistat was approved for weight management in patients with polycystic ovary syndrome. Although there are clinical trials supporting the good weight loss efficacy of orlistat, its long-term safety and effectiveness in obesity-related diseases still need to be further determined. This article provides a brief review of the new progress in the clinical efficacy and safety of orlistat, aiming to provide a reference for the more rational drug application.
ObjectiveTo review the current epidemiological status and trends of overweight and obesity globally and in China, and to analyze its hazards, causes, and prevention strategies. MethodsRecent global and Chinese studies and reports on obesity epidemiology were retrieved. Data from the latest World Obesity Federation’s reports and authoritative national statistics were comprehensively analyzed. ResultsThe prevalence of overweight and obesity was rising worldwide. According to the World Obesity Atlas 2025, it was predicted that by 2030, nearly 3 billion adults worldwide (approximately 50% of the adult population) would be affected by overweight or obesity. The overweight rate in youth aged 5–19 increased from 8% in 1990 to 20% in 2022. In China, over half of adults were overweight or obese, totaling over 402 million and ranking first in the world; the overweight/obesity rate in children and adolescents approached 20%. Gaps between urban and rural obesity had narrowed in China, and males and northern regions had higher rates than females and southern regions. Unhealthy diet patterns, reduced physical activity and other lifestyle changes were the main reasons for the prevalence of obesity. Obesity greatly increased the risk of type 2 diabetes, cardiovascular diseases, and other chronic diseases. ConclusionsBoth globally and in China, obesity has become a serious epidemic challenge. Strengthened prevention and control strategies are urgently needed, including comprehensive treatment based on healthy lifestyle intervention, drugs, endoscopy, weight loss surgery, etc, adoption of new weight management therapies and supportive policies are also needed. Special attention should be paid to preventing childhood obesity to curb the rising trend and reduce the associated health burden.
【摘要】 目的 探討內江市企事業及機關單位從業人員20~60歲人群中超重、肥胖者及其相關因素。 方法 2009年6月－2010年9月采用整體隨機分層方法，對內江市企事業及機關單位從業人員共5 832例進行調查。用問卷了解吸煙、飲酒、運動、家族史、文化程度，并測定身高、體重、空腹血糖、甘油三酯、膽固醇等。采用SPSS 17.0軟件進行統計學分析，以雙側Plt;0.05為有統計學的意義。與肥胖有關的危險因素采用多因素logistic回歸分析。 結果 超重及肥胖者比例為27.16%，其中超重者1 377例，占23.6%，肥胖者207例，占3.55%；肥胖較超重者空腹血糖、甘油三酯、血壓更高；多因素logistic回歸分析提示:超重及肥胖與年齡、吸煙、性別、運動、家族史、文化程度有關，與飲酒無關。 結論 內江市企事業及機關單位從業人員20~60歲人群中超重、肥胖者比例為27.16%；肥胖較超重者更易發生高血糖、高血壓、高血脂、高尿酸血癥；超重及肥胖與年齡、吸煙、性別、運動、家族史、文化程度均有關。【Abstract】 Objective To investigate the prevalence and the risk factors of overweight and obesity among employees aged 20 to 60 years old in enterprises and government institutions in Neijiang city. Methods From June 2009 to September 2010, 5 832 employees in government departments, enterprises and institutions in Neijiang were surveyed using stratified random sampling method. Items like physical exercise, smoking, drinking, educational level, and family history were collected through face-to-face questionnaire, and their height, weight, fasting plasma glucose, triglyceride, cholesterol were measured. SPSS 17.0 was used for statistical analysis, and the relationship of each index was analyzed by Pearson correlative analysis. Bilateral Plt;0.05 was considered to be statistically significant. Risk factors associated with obesity were analyzed by Logistic regression analysis. Results The overweight and obesity morbidity rate was 27.16%, including 1377 cases of overweight (23.6%) and 207 cases of obesity (3.55%). Fasting plasma glucose, triglyceride, and blood pressure of obesity patients were higher than those of the overweight patients. Correlation analysis showed that overweight and obesity were positively correlated with fasting plasma glucose (r=0.116,Plt;0.01), triglyceride(r=0.319,Plt;0.01), uric acid (r=0.373,Plt;0.01), diastolic blood pressure (r=0.198,Plt;0.01), and systolic blood pressure (r=0.212,Plt;0.01), but not correlated with cholesterol. Logistic regression multivariate analysis showed that overweight and obesity were related with age, smoking, sex, sports, the educational level and family history, but not related with drinking. Conclusions The prevalence of overweight and obesity among employees aged 20 to 60 years old in enterprises and government institutions in Neijiang city is 27.16%. People with overweight and obesity are more susceptible to hyperglycemia, hypertension, hyperlipemia, and hyperuricemia. Overweight and obesity were closely related with age, smoking, gender, sports activities, family history, and educational level.
Objective To systematically review the efficacy of eight time-restricted eating strategies on overweight/obese adults using network meta-analysis. MethodsThe Scopus, MEDLINE, Embase, PubMed, Web of Science, and Cochrane Library databases were electronically searched to collect randomized controlled trials (RCTs) on the intervention effects of eight time-restricted eating strategies on overweight/obese adults from inception to September 18, 2024. Two researchers independently screened the literature, extracted data, and assessed the risk of bias of the included studies. Network meta-analysis was performed using ADDIS 1.16.8 and Stata 18.0 software. ResultsA total of 23 RCTs involving 1 306 overweight/obese adults were included. The network meta-analysis revealed that compared with standard diets, the 8-hour time-restricted eating combined with a low-carbohydrate diet (MD=?4.01, 95%CI ?5.95 to ?2.08, P<0.05) showed better weight reduction effects. Compared with standard diets, the 8-hour time-restricted eating combined with a low-carbohydrate diet (MD=?3.54, 95%CI ?5.44 to ?1.63, P<0.05) and the 8-hour time-restricted eating combined with a low-sugar diet (MD=?4.19, 95%CI ?8.33 to ?0.05, P<0.05) significantly improved overall fat mass. Compared with standard diets, the 8-hour time-restricted eating combined with a low-sugar diet (MD=?15.42, 95%CI ?29.12 to ?1.72, P<0.05) had a better effect on fasting blood glucose control. The 8-hour time-restricted eating combined with high-intensity interval training (MD=?3.68, 95%CI ?6.57 to ?0.79, P<0.05) showed better results in reducing waist circumference. No statistical significance was found in direct comparisons regarding bone mineral content. The efficacy ranking showed that the 8-hour time-restricted eating combined with a low-carbohydrate diet was most effective for weight reduction; the 8-hour time-restricted eating combined with a low-sugar diet was more effective in reducing overall fat mass and controlling fasting blood glucose; the 8-hour time-restricted eating combined with calorie restriction had significant effects on waist circumference improvement; and the 8-hour time-restricted eating combined with high-intensity interval training was more effective for increasing bone mineral content. ConclusionBased on the results of the network meta-analysis and ranking, different time-restricted eating strategies have specific advantages for the intervention of overweight or obese individuals. The choice of the appropriate strategy should consider individual dietary habits and health conditions. Due to the limited quantity and quality of the included studies, more high-quality studies are needed to verify the above conclusion.