| Objective:Metabolic syndrome(MetS)is characterized by a clustering of cardiovascular risk factors,including abdominal obesity,glucose intolerance,hypertension,and dyslipidemia,it has become a major public health problem currently.The purpose of this study was undertaken to assess the difference dietary habits,nutrient intake and life style between MetS patients and control group,and to evaluate the possible role of dietary factors in MetS,and to discuss the relationship between dietary nutrient patterns and MetS through health examination,lifestyle and dietary habits investigation,which may be more significant for MetS prevention by providing a theoretical basis for the guidance.Methods:The case-control study was conducted during March 2010-January 2011.A total of 123 MetS cases and 135 controls were selected from the Health Examination Center of Heping District,Tianjin,China.Dietary intake was estimated by 24-h dietary recalls for 7 days.All statistical analyses were performed using SPSS 16.0.Continuous variables were presented as mean and standard deviation,and analyzed using the independent-samples t-test.Categorical data were analyzed using the Chi-square test.The dietary nutrient pattern for MetS was used by factor analysis.Logistic regression analysis was used to analyze the relationship of dietary factors and MetS.Results:Clinical characteristics and lifestyle factors are shown in tables.The case subjects were more likely to smoke in the life and had lower education level,and the controls paid more attention to balance dietary nutrition and milk intake(P<0.05).There was no significant difference gender,age and physical activity between two groups.Subjects with MetS had significantly higher waist circumference,blood pressure,body mass index,and higher levels of triglyeride,total cholesterol,low-density lipoprotein cholesterol,fasting plasma glucose and uric acid compared with the control group.However,case group had a lower level of high-density lipoprotein cholesterol than control subjects.Regarding dietary nutrient intake status,the dietary intakes of energy,total fat,cholesterol,and sodium were significantly higher and vitamin E and magnesium were relatively deficient in the case group than in the control group.In the univariate logistic regression analysis,education level(OR=0.752,95%CI:0.645～0.878),manganese(OR=0.762,95%CI:0.587～0.989)were negative with MetS.Smoke(OR=1.739,95%CI:1.040～2.909),total energy(OR=1.001,95%CI:1.001～1.002),sodium(OR=6.164,95%CI:3.906～9.726)were associated with the risk of developing MetS.In the multiple logistic regression analysis,sodium(OR2=1.002,95%CI:1,002～1.003)were associated with the risk of developing MetS,education level(OR=0.390,95%CI:0.244～0.623)was the protective factor of MetS after adjusting lifestyle and confounding factors.In the factor analysis,4 major nutrient patterns were derived using principal component factor analysis.They were "vitamin B group" pattern,"protein and lipids" pattern,"vitamin E and minerals" pattern and "antioxidant vitamins" pattern."vitamin B group" pattern(OR=0.16,95%CI:0.05～0.47)were negative with MetS after adjustment for age,sex,education level,smoking status,alcohol drink status,physical activity and marital status.Conclusion:This study suggested that the individuals of MetS should control the intake of total energy,total fat,cholesterol and sodium,and pay attention to intake of magnesium,vitamin E in daily life to balance dietary nutrition,which is advantaged of preventing and controlling the occurrence and development of MetS.A long-term study should be further conducted to clarify the association between the "vitamin B group" pattern and MetS. |
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