4784例老年男性血脂分布的特点及与体质指数关系的研究

目的 了解老年男性血脂分布的规律及与体质指数(BMI)的关系,从血脂紊乱的角度探讨老年男性的体质量控制问题.方法 对4784例老年男性体检者进行调查并测定血脂水平,按年龄分为60～69岁组、70～79岁组和80～96岁组,按BMI水平分为低体质量组(BMI<18.5 kg/m2),正常体质量组(BMI:18.5～23.9 kg/m2),超质量组(BMI:24.0～27.9 kg/m2),肥胖组(BMI≥28.0 kg/m2).结果 4784例老年男性总胆固醇(TC)、低密度脂蛋白胆固醇(LDL-C)、三酰甘油(TG)、高密度脂蛋白胆固醇(HDL-C)分别为(5.1±0.9)mmol/L、(3.0±0.8)mmol/L、(1.5±1.0)rmmol/L、(1.3±0.3)mmol/L,血脂异常的检出率为44.8%(2141例),其中TC、TG、HDL-C异常的检出率分别为10.4%(497例)、9.3%(445例)、29.8%(1425例)和19.4%(928例).不同年龄组随增龄TG水平降低,HDL-C水平升高(均P<0.01),80～96岁组的TC和LDL-C水平有降低趋势(P<0.05).老年男性超体质量占46.8%(2239例),肥胖占15.5%(740例).随BMI水平的升高,TG水平亦升高,而HDL-C则随BMI升高降低,不同体质量组TC和LDL-C比较差异无统计学意义.80～96岁组亦以高TG和低HDL-C为主要类型的血脂异常,其血脂分布特点与70～79岁组相似.80～96岁组肥胖和超体质量的检出率最低,分别为44.6%(228例)和11.9%(61例).结论 老年男性血脂异常以高TG和低HDL-C为主,TC升高的检出率高于2002年全国普查的结果;超体质量、肥胖的检出率接近发达国家水平;老年男性随增龄TC和LDL-C水平下降,而HDL-C水平有上升趋势.

Lipid profile and its association with body mass index in 4784 elderly male subjects

Objective To evaluate lipid profile and its relationship with body mass index (BMI)in 4784 elderly male subjects. To explore the possibility of using an improvemem of dyslipidemia as an alternative target in the weight control in elderly male population. Methods 4784 elderly male subjects were surveyed with, the measurement of blood lipids and were grouped according to age (60-69, 70-79, 80-96 yrs) and BMI (＜18.5, 18.5-23.9, 24.0-27.9, ≥28.0 kg/m2), respectively.Results The mean levels of TC, LDL-C, TG and HDL-C (mmol/L) were (5.1±0.9)mmol/L,( 3.0±0. 8)mmol/L, (1.5±1.0)mmol/L and (1.3±0. 3)mmol/L, respectively. The prevalence of dyslipidemia was 44.8% (2141 cases) in this population, with specific abnormality rates in TC,LDLC, TG, HDL-C being 10. 4% (497 cases), 9.3% (445 cases), 29.8% (1425 cases) and 19.4% (928cases), respectively. Within all age groups, TG decreased dramatically and HDL-C incre ased with increasing age (P＜0.01), while the 60-69 yrs age group versus other age groups showed a tendency to an increment of TG, and a decrement of HDL-C. (P＜0. 05). Prevalences of overweight and obesity were 46.8% and 15.5% in the elderly male subjects, respectively. The level of TC increased with the increasing BMI, while HDL-C decreased. The differences in TG and LDL-C among various BMI groups were of no statistical significances. High TG and low HDL-C were predominant abnormalities amongst the oldest old, whose lipid profile resembled that of the 70-79 yrs age group.Whilst, the prevalences of overweight and obesity were at the lowest levels of 44.6% (228 cases) and 11.9% (61 cases), respectively. Conclusions High TG and low HDL-C are predominant abnormalities in elderly male subjects. TC level in the current population is higher than that from the national census in 2002. Prevalences of overweight and obesity are close to that in developed countries.TC and LDL-C levels are negatively related to age in the elderly male population, contrasting the correlation between HDL-C and age.