Abstract:

AIM： Waistline is a simple measurement index for fat content in human internal organs. It could reflect central obesity and act as an important index for predicting obesity-associated healthy risks. In this study, the relationship between waistline and metabolic syndrome and its related metabolic disorders in the elderly populations of Shanghai was determined. METHODS： 2 000 retired male cadres who aged （74±5） years and received the health examination in the Ranking Medical Examination Center of the Sixth People＇s Hospital of Shanghai from May to December 2006 were selected. 1 700 people with complete data and the informed consent were analyzed. ①The waistline was horizontally measured via the midpoint of line from the anterior superior iliac spine to the inferior margin of waist. At the same time, the blood pressure and body mass index （BMI） was measured. ②According to the working definition of International Diabetes Federation about Asian in 2005, the incidence of metabolic syndrome in the subjects was detected. ③The Hitachi 7600-020 automatic biochemical analyzer was applied to determine the triglyceride （TG）, total cholesterol （TC）, high density lipoprotein cholesterol （HDL-C）, low density lipoprotein cholesterol （LDL-C）, blood glucose and other related biochemical indicators. The morbidity of metabolic syndrome and abnormal condition of some metabolic indexes in people with different waistlines were analyzed. RESULTS： All 1 700 people with complete data were involved in the result analysis. ①Of the enrolled people, the incidence of metabolic syndrome, central obesity, essential hypertension, glucose metabolic disorder and hypertdacylglyceroiemia were 36.41% （619/1 700）, 63.58% （1 080/1 700）, 59.35% （1 009/1 700）, 40.76% （693/1 700） and 33.88% （576/1 700）, respectively. ②The incidence of metabolic syndrome was increased concomitantly with the increase of waistline, when the waistline was beyond 90 cm. There was a positive correlation between the waistline and the number of abnormal metabolic indexes （r =0.479, P 〈 0.01）. ③The increase of waistline was positively correlated with the levels of BMI, systolic blood pressure, diastolic blood pressure and TG （r =0.722 9, 0.125 3, 0.163 3, 0.284 9, P 〈 0.01）, and negatively correlated with the level of HDL-C （r=-0.270 2, P 〈 0.01）. ④The incidence of hypertension in people with waistline beyond 90 cm was obviously higher than that in people with waistline below 90 cm （P 〈 0.01 ）. CONCLUSION： The incidence of metabolic syndrome is higher relatively among the old male populations in Shanghai. The number of abnormal metabolic indexes and the incidence of metabolic syndrome are increased with the waistline.[著者文摘]