关于体脂百分比、腰臀比、体重指数诊断肥胖的研究

目的通过对肥胖诊断的测量指标体脂百分比(F%)、腰臀比(WHR)、体重指数(BMI)的比较,分析三者对肥胖诊断的一致性。方法研究对象为2008-01—2009-06来我院体检者1773例,以电子身高体重计(深圳南山区双佳康乐电子厂生产,型号SK-CK)测身高、体质量,计算BMI;采用上海佰尼好科贸有限公司Inbody3.0人体成分分析仪测人体成分,运用生物阻抗法(BIA)直接得到F%、WHR,进行统计学分析。结果 F%、WHR、BMI诊断肥胖的一致性不理想。结论临床上诊断肥胖时应综合应用F%、WHR、BMI,排除肌肉含量超标、体脂量不多的体质量过重者,早期发现体质量正常而体脂量超标的个体。     

成年人体脂率与体重指数、腰围、血脂、血糖、尿酸的相关性分析

目的探讨体脂率与体重指数（BMI）、腰围、血糖（Glu）、血脂、尿酸（UA）的相关性。方法选取2010-04—10来我院参加健康体检的2004例成年人的体检资料进行分析。结果男性除总胆固醇（TC）外,BMI、腰围、血糖、三酰甘油（TG）、高密度脂蛋白胆固醇（HDL-C）、尿酸均与体脂率呈显著相关（P〈0.01）,低密度脂蛋白胆固醇（LDL-C）与体脂率有相关性（P〈0.05）;而女性则所有指标均与体脂率显著相关（P〈0.01）。结论体脂率的测定对评估疾病风险有一定价值,应广泛推广,同时应建立科学健康的生活方式,避免过多热量摄入。     

不同性别青年人尿酸水平与体质量指数的相关性研究

目的 探讨不同性别体检青年人尿酸(UA)水平与体质量指数(BMI)的相关性.方法 选择2019年1-11月该院年龄为18～44岁的1223例健康体检者作为研究对象,分析UA水平与BMI及相关临床指标的关系并进行组间比较,按照UA水平分为高尿酸组和血尿酸正常(NUA)组,采用Logistic回归分析不同性别高尿酸血症(H...     

成年人体脂率与体重指数、腰围、血脂、血糖、尿酸的

目的 探讨体脂率与体重指数(BMI)、腰围、血糖(Glu)、血脂、尿酸(UA)的相关性.方法 选取2010-04-10来我院参加健康体检的2 004例成年人的体检资料进行分析.结果 男性除总胆固醇(TC)外,BMI、腰围、血糖、三酰甘油(TG)、高密度脂蛋白胆固醇(HDL-C)、尿酸均与体脂率呈显著相关(P＜0.01),低密度脂蛋白胆固醇(LDL-C)与体脂率有相关性(P＜0.05);而女性则所有指标均与体脂率显著相关(P＜0.01).结论 体脂率的测定对评估疾病风险有一定价值,应广泛推广,同时应建立科学健康的生活方式,避免过多热量摄入.     

淮安市市区成人体脂百分比与BMI关系初探

目的调查淮安市区部分成人体脂成分现状,了解体重指数(BMI)与体脂百分比(F%)之间的关系。方法对1700名成人进行体格测量,应用生物电阻抗技术对体重、腰臀比、F%、BMI、内脏脂肪面积分布进行描述,部分指标与上海、太原和日本东京成人指标进行比较,重新确定研究对象的肥胖诊断切点。结果随年龄增长,BMI和F%均呈现逐年增长的趋势,但两者之间存在不均衡性;淮安市成人与上海、太原、日本东京的BMI、F%分布相近,但20～30岁男性在BMI,50～60岁女性在F%均与其他地区存在统计学差异;研究对象中男性、女性内脏脂肪分布呈逐年增长趋势,而男性达到50%内脏型肥胖的情况比女性提前10年左右;重新确定肥胖的切点显示男性BMI为24.625kg/m2,女性为22.505kg/m2;对研究对象F%的预测:F%(男性)=腰臀比×233.241-BMI×0.673-年龄×0.297-156.3;R2=0.881;F%(女性)=腰臀比×43.388+BMI×0.928-年龄×0.083-25.43;R2=0.616。结论 BMI与F%对肥胖的判定存在不均衡性,BMI的肥胖诊断切点可随慢性病预防的需要适当调整。     

骨量下降期成年人骨密度与体质量指数的相关性

目的:通过对骨量下降期成年人的跟骨进行骨密度的测试,探讨骨量下降期成年人骨密度与体质量指数的关系。方法:实验于2005-02/05在苏州市体育科学研究所进行测试,随机选取苏州市骨量下降期40～65岁成年912人作为受试对象,其中男517人,女395人。记录受试者的性别、出生年月,分别测试身高、体质量、体质量指数;采用sonost-2000超声骨密度仪测试跟骨骨密度,算出跟骨骨质量指数;测量不同体质量指数组间超声参数和骨质疏松发生率;并进行体质量指数与各指标的相关性分析。结果:受试对象912人全部进入结果分析。①体质量指数与各指标的相关性分析:体质量指数越高与超声波衰减系数和骨质指数相关性越高(r=0.573和0.525,P<0.01),体质量指数与骨密度和骨强度呈显著性正相关。②不同体质量指数组间骨质疏松率的比较:根据体质量指数测量结果分为≤18.50kg/m2组,18.50～24.9kg/m2组和≥25.0kg/m2组。结果表明,体质量指数≤18.5kg/m2组骨质疏松发生率为12.5%,18.50～24.9kg/m2组骨质疏松发生率为5.45%,≥25.0kg/m2组骨质疏松发生率为3.89%。结论:①体质量指数与骨密度和骨强度呈正相关。体质量指数越大,骨密度和骨强度越高,即骨承受和抵抗外力的能力强,骨质疏松发生率低。②保持适当的体质量指数有利于防止骨质疏松的发生,低体质量指数是发生骨质疏松的危险因素之一。     

体质量指数、血糖水平与急性胰腺炎相关性分析

目的探讨体质量指数、血糖水平与急性胰腺炎病情程度的关系。方法 398例急性胰腺炎患者依据病情分为重症急性胰腺炎组38例和轻症急性胰腺炎组360例,分析2组患者体质量指数、血糖水平与Ranson评分、Balthazar CT分级等的相关性。再依据体质量指数将398例患者分为肥胖组88例,超体质量组140例,体质量正常组170例,比较3组重症急性胰腺炎发病率。结果重症急性胰腺炎组入院时血糖水平、体质量指数高于轻症急性胰腺炎组（P〈0.05）;肥胖组重症急性胰腺炎发病率高于体质量正常组与超体质量组（P〈0.05）;Ranson评分≥3分、BalthazarCT分级为D或E级者体质量指数、血糖水平均高于Ranson评分〈3分者、Balthazar CT分级为A,B或C级者（P〈0.05）;血糖水平、体质量指数与Ranson评分、Balthazar CT均呈正相关（P〈0.05）。结论体质量指数、血糖水平可作为评估急性胰腺炎病情严重程度的参考指标之一。     

烟台市成年人体质量指数抽样调查

目的:分析成年人体质量指数指标与体质的关系。方法:于2004-09/2005-01,在烟台市APE休闲广场抽取成年人997人,男644人,年龄20～59岁;女353人,年龄20～54岁。研究对象年龄分段依据《中国成年人体质测定标准》。使用体能测试系统采集身高、体质量及其他身体功能和身体素质指标数据,各指标的测量方法参照体育学院通用教材《体育测量评价》。亚洲成年人体质量指数分类新标准:体质量指数<18.5kg/m2为体质量偏低,体质量指数18.5～22.9kg/m2为正常体质量,体质量指数23～24.9kg/m2为超重,体质量指数25～29.9kg/m2为I度肥胖(中度),体质量指数≥30kg/m2为Ⅱ度肥胖(重度)。参考此标准合并I度肥胖和Ⅱ度肥胖(即体质量指数≥25kg/m2为肥胖)进行统计分析。计算各组体质量指数均值的变化规律。结果:纳入成年人997人,均进入结果分析。①成年人体质量指数男性平均为23.7kg/m2,女性平均为21.8kg/m2,两者比较差异显著。各年龄段男女之间比较,除50～54岁差异无显著性外,其余各年龄段男性体质量指数均大于女性,但到35岁以后,这种差距明显缩小。②体质量偏低和正常两类人群在各年龄段中所占的比例基本上随年龄段的增加呈逐步下降趋势,而超重和肥胖两类人群在各年龄段中所占比例基本上随年龄段的增加呈逐步上升趋势。③女性体质量偏低和体质量正常的比例都远高于男性,而超重和肥胖的比例则明显低于男性,尤其是女性肥胖者的比例比男性低19.4%。④在相关性显著的所有指标中,血压与体质量指数存在较大的正相关性。结论:①烟台市成年人体质量指数均值男性高于女性,男女均随年龄增长基本是逐步上升趋势。②烟台市成年人中有接近一半的人体质量超标。③体质量指数对大部分身体功能和体质指标均有显著性相关;体质量超标对某些相关体质产生一定的负面影响,因此有必要采取相应措施防止体质量的过度增长,以改善自身的健康状况。     

孕前体质量指数及孕期体质量增加与妊娠期糖尿病的相关性

目的:分析孕前体质量指数(BMI)及孕期体质量增加与妊娠期糖尿病(GDM)的相关性。方法:选取2016年6月~2017年6月于我院行常规产检的100例孕妇为研究对象,根据孕前BMI水平将其分为低体重组12例、正常体重组45例、超体重组28例、肥胖组15例,并根据孕期体质量增幅分为≤12.5 kg、12.5 kg两个组段。分析孕前BMI、孕期体质量增加与GDM发病情况的关系。结果:低体重组、正常体重组、超体重组及肥胖组GDM发生率分别为8.33%、22.22%、53.57%、80.00%,GDM发生率随BMI的增加而升高,P0.05;空腹血糖、餐后1 h血糖及餐后2 h血糖与BMI相关系数r分别为0.131 1、0.266 9、0.226 4,P0.05;除低体重组外,在同等BMI范围内,孕期体质量增幅12.5 kg孕妇的GDM检出率显著高于孕期体重增幅≤12.5 kg的孕妇,P0.05;孕前BMI、孕期体质量增加与GDM的发生呈正相关,相关系数r分别为0.151 1、0.160 7,P0.05。结论:孕前BMI、孕期体质量增加与GDM的发生呈正相关,孕前超重及孕期体质量增加过多均可增加GDM发生率。     

儿童瘦素水平与性别和体质量指数的关系

目的研究儿童血清瘦素水平与性别和体质量指数的关系。方法在小学生7—9岁体检人群中随机抽取160人;使用放射免疫法检测他们的瘦素水平;根据性别分为男女两组,根据体质量指数（BMI）分为正常和肥胖组;分别评价儿童血清瘦素水平与性别和体质量指数的关系。结果（1）女孩瘦素水平明显高于男孩（P〈0．01）,正常和肥胖组比有显著性差异（P〈0．01）。结论（1）儿童血清瘦素水平男女之间有显著差异（2）正常儿童和肥胖儿童血清瘦素水平也有显著差异,所以儿童瘦素水平与性别密切相关,肥胖儿童将成为血清瘦素观察和治疗对象。     

Effects of combined female sex hormone replacement therapy on body fat percentage and distribution

The effectiveness of hormone replacement therapy for patients with cardiovascular disease and for postmenopausal women with associated cardiovascular risks is currently under wide investigation. Among the cardiovascular risks are those related to body fat percentage and distribution. The present study undertook to investigate the effects of combined hormone replacement therapy on body fat percentage and distribution in postmenopausal women. Data for the present study were collected via retrospective analyses of 287 healthy postmenopausal women (146 as a study group, 141 as controls). Participants in the study group received 0.625 mg conjugated equine estrogen combined with 2.5 mg medroxyproges-terone acetate per day for 18 months. Body fat percentage and fat distribution were evaluated through the electrical impedance method and measurements of skinfold thickness, respectively. Two indices of centripetal fat distribution were defined: ratio of trunk-to-extremity skinfold thickness (T/E index), and ratio of upper-to-lower body skinfold thickness (U/L index). Investigators found that a daily dose of 0.625 mg of conjugated equine estrogen combined with 2.5 mg of medroxyprogesterone acetate taken for 18 months increased body fat percentage by decreasing lean body mass and by affecting upper-to-lower body fat distribution, without producing significant changes in overall weight. A slight decrease in the trunk-to-extremity body fat ratio was noted at 18 months of treatment, but this decrease did not reach statistical significance. Data related to the effects of hormone replacement therapy on body fat percentage and distribution in postmenopausal women are scarce. Additional research is needed to clarify the possible health benefits of hormone replacement therapy.     

体重指数与骨密度的关系

目的分析体重指数(BMI)与骨密度的关系.方法对2395例腰椎前后位和髋部骨密度检查结果的T值与体重指数进行统计学相关回归分析.结果无论总体分析或按年龄组分析都显示骨密度T值与体重指数呈线性正相关.低体重指数者(BMI≤20)骨密度T值低于较高体重指数者(BMI>20),差异具有显著性.骨密度T值随体重指数变化在髋部较脊柱更明显.结论体重指数与骨密度T值呈正相关,低体重指数与骨质疏松的发生有关.     

Accuracy of body mass index to determine obesity in women with breast cancer: An observational study of Taiwanese sample

Background

Obesity is common in women with breast cancer. The risk of obesity-induced metabolic syndrome is higher in Asians than in Caucasians. Excessive body fat accumulation has been associated with a worse prognosis. However, the most popular clinical indicator of obesity is not fat itself, but body mass index (BMI).

Objectives

The purposes of this study were to determine the consistency of BMI and body fat percentage (BF%) in determining obesity and to identify the best BMI cutoffs for identifying obesity in Taiwanese women with breast cancer.

Methods

Body fat and fat-free mass were measured by bioelectrical impedance 1 day before breast surgery for 200 women with breast cancer. BMI was calculated as weight (in kilograms) divided by height (in meters) squared.

Results

BMI and BF% were highly correlated (r = 0.91; p < 0.001). However, BMI exhibited poor sensitivity for identifying obesity (47%). The sensitivity of BMI to detect obesity was better in women over age 60. The best BMI cutoff for obesity was 22.3 kg/m² with a sensitivity and specificity of 89% (95% CI = 83-94%) and 87% (95% CI = 77-93%) respectively, and the total accuracy rate improved from 65% to 89%.

Conclusions

Using BMI to identify obesity in Taiwanese women with breast cancer requires careful attention to the diagnostic criterion chosen. The World Health Organization criterion tends to underestimate the prevalence of obesity, especially for younger women with breast cancer (under age 40).     

食管癌患者放疗期间体质指数及机体组成成分分析

目的：动态分析食管癌患者放疗期间体质指数（body mass index，BMI）及体成分的变化，以期更好地为此类患者提供营养支持方案。方法：选取32例食管癌患者入组，放疗期间动态行体成分测定，包括机体总含水量（total body water，TBW）、蛋白质、矿物质、机体脂肪含量（body fat mass，BFM）、机体骨骼肌含量（skeletal muscle mass，SMM）。动态分析食管癌患者放疗期间不同时间点BMI与机体组成成分的相关性。结果：放疗开始后患者的TBW、蛋白质、BFM、SMM均开始逐渐下降，BMI与BFM明显相关（P<0.01），与矿物质含量的相关性最不明显。结论：食管癌患者放疗期间机体组成中的蛋白质、水分、脂肪、肌肉都明显下降；BMI下降主要由体脂含量下降所致，适当增加膳食脂肪含量有助于提高其放疗耐受性及生存质量。     

Headache prevention outcome and body mass index

A population-based longitudinal study suggests that obesity is a strong risk factor for the development of headaches on 15 or more days per month. Little is know about the influence of weight on the response to headache preventive treatment. Herein we prospectively assessed the influence of the baseline body mass index (BMI) on the response to headache preventive treatment. We included adults with episodic or chronic migraine (ICHD-2), or transformed migraine (Silberstein and Lipton criteria) that sought care in a headache clinic. BMI was assessed in the first visit. Baseline information included headache frequency, number of days with severe headache (prospectively obtained over 1 month), and headache-related disability (HIT-6). The same information was obtained after 3 months of preventive treatment. Subjects were categorized based on BMI in: normal weight (/=30). We contrasted the headache end-points using anova with post-test and Kruskal-Wallis with post-test. We used logistic regression to model BMI and headache parameters adjusting for covariates. Our sample consisted of 176 subjects (79.5% women, mean of 44.4 years). At baseline 40.9% had normal weight, 29.5% were overweight and 27.3% were obese. No significant differences were observed in the number of headache days at baseline. After treatment, frequency declined in the entire population, but no significant differences were found by BMI group. Regarding the number of days with severe pain per month, there were also no significant differences at baseline (normal = 6.1, overweight = 6.5, obese = 6.7), and improvement overall (P = 0.01). However, changes were greater in the obese (reduction in 2.7 days with treatment) and overweight (3.9) vs. normal (1.5, P < 0.01). Finally, HIT scores at baseline did not differ by BMI group (normal weight = 63.8, overweight = 64.1, obese = 63.6). However, compared with the normal weighted group, change in HIT scores (follow-up baseline) were greater in the obese (6.4 vs. 3.5, P < 0.05) and overweight groups (6.8 vs. 3.5, P < 0.05). In the logistic regression model, BMI did not account for changes in disability, headache frequency, or in the number of days with severe headache per month, after adjusting for covariates. Contrary to what we hypothesized, obesity at baseline does not seem to be related to follow-up refractoriness to preventive treatment.     

阻塞型睡眠呼吸暂停低通气严重程度与体重指数的关系

目的:探讨阻塞型睡眠呼吸暂停低通气综合征严重程度与体重指数的关系。方法:按时间顺序收集137例在我院睡眠呼吸中心确诊为睡眠呼吸暂停低通气综合征患者的体重指数和睡眠呼吸暂停低通气指数数据,分组做时应分析,同时取不用手术和呼吸机治疗的肥胖患者,予以减体重治疗,随访5个月。结果:睡眠呼吸暂停低通气综合征患者病情与体重指数相关,减体重者体重指数下降,睡眠呼吸暂停低通气综合征患者病情也改善。结论:肥胖是睡眠呼吸暂停低通气综合征的发生发展的主要危险因素之一,减轻体重,是睡眠呼吸暂停低通气综合征的治疗的重要手段,同时降低了医疗费用,是值得推广的睡眠呼吸暂停低通气综合征患者的基础治疗方式。