| Objective:To understand the intake status of dietary macronutrient and fatty acid, meanwhile to learn theprevalence of metabolic syndrome (MS), To explore extensively the dietary and non-dietaryfactors which affect MS of residents, Providing the theory’s basis to prevent and control themetabolic diseases and to draw up a scientific nutrition policy.Method:Random sampling3973people (male1887, female2086) aged48.71y from unban rural inZhejiang Province. Using24-hours dietary recall for3consecutive days and condiments weighingand recording the daily consumption of food and condiments including eating outside). Calculatingthe everyday intake of energy and macronutrient like protein, fat, carbohydrate and so on,calculating carbohydrates, fats, proteins and other nutrients for energy ratio, and different typesfatty acids and their the constitute ratio will also be calculated according to "Food CompositionTable". To descriptive and analyze the different characteristics of people’s dietary fatty acid intakestatus and prevalence of the metabolic syndrome. Analyzing the probable factors which affect theprevalence of MS by applying Logistic multivariate analysis.Results：1．The results of intake of dietary energy and main nutrients showed: Zhejiangresidents’ average intake of dietary energy was8.94MJ/standard/person-day, protein was64.88g/standard/person-day, carbohydrate was64.88g/standard/person-day, fat was74.04g/standard/person-day, cholesterol was245.80mg standard/person-day. Carbohydrate, protein and fatfor energy ratio was49.45%,14.71%and38.87%respectively. In general, carbohydrate for energyratio below the lower limit of recommended, in contract, fat for energy ratio over therecommended standard.2. The results of intake of fatty acids showed: Zhejiang residents’ average intake of dietaryfatty acid was67.70g/standard/person-day,saturated fatty acid(SFA)was13.61g/standard/person-day, monounsaturated fatty acids(MUFA)was29.46g/standard/person-day, the ω-6PUFAofpolyunsaturated fatty acids(PUFA)was15.64g/standard/person-day; ω-3PUFA of polyunsaturated fatty acids(PUFA)was2.92g/standard/person-day. SFA, MUFA, PUFA for energy ratios were6.91%,15.15%,9.67%. ω-6/ω-3PUFA ratio averaged5.26:1, SFA: MUFA: PUFA ratio averaged1:2.17:1.45.In general, More intake of dietary fatty acid in rural area than in unban, expect intakeof PUFA（P＜0.001）, higherω-6/ω-3fatty acid ratio in urban than in rural areas (P<0.001),Dietary fats and various types of fatty acids for energy ratio growth was negatively correlated withage（P＜0.001）.3. The results of distribution of metabolic syndrome and its abnormal components status:the prevalence of residents’ MS was25.86%(standard rate was24.42%), pressure and abnormalglucose increased with age (trend test P<0.001), region-group analysis found significantly lowerprevalence of MS central obesity, universalis adiposis and abnormal glucose in rural areas than inurban areas (P <0.0167).4.The relationship between different types of fatty acids for energy ratio, constitute ratio offatty acid and MS including its abnormal components: the higher fat for energy ratio, the higherrisks of TG hyperlipidemia, abnormal blood pressure, abnormal blood glucose (trend test P<0.05);the higher SFA for energy ratio, the higher risks of MS, central obesity(trend test P<0.001);Thehigher MUFA for energy ratio, the lower risks central obesity and abnormal blood pressure (trendtest P<0.01), in contract, the risk of abnormal glucose increased with the growth of energy ratio ofMUFA (trend test P<0.001); the risk of central obesity decreased with PUFA for energy ratioincreased, whereas the risk for MS increased along with energy ratio of PUFA rising (trend testP<0.05). when ω-6/ω-3PUFA ratio was4—6:1, the levels of SBP, FPG, TG can maintain a lowstatus, whereas the level of serum HDL-C maintain high.5. The results of case-control study between dietary fatty acids and MS in Zhejiang Province:In factors of dietary, increased risks of MS were associated with intake of energy, fat, fatty acid,fatty acid proportions (OR were3.14,1.94,1.47,1.81and1.63respectively, trend test P<0.10);while EPA for total fatty acids ratio, carbohydrates for energy than was the protective factor of MS(OR were0.92,0.85respectively, trend test P <0.10)among male. LA for total fatty acids ratio, S/M ratio were significant risk nutrients(OR were1.41,1.83respectively, trend test P<0.10);theintake of ω-3PUFA, ALA, ω-6/ω-3ratio, S/P, cholesterol, carbohydrates for energy ratio wereMS’s protective factors among female (OR were0.46,0.59,0.62,0.93,0.39,0.86respectively, trendtest P <0.10).Conclusion:1. The level of Zhejiang Province residents’ dietary energy and macronutrients intakewere within the range of recommended by Chinese Nutrition Society, but fat for energy ratio stillbe controlled, whereas carbohydrates for energy supply needed be increased. 2. In general, more intake of dietary fatty acid in rural areas than in urban areas, exceptPUFAs. The ratio of SFA:MUFA:PUFA was imbalance，and the MUFA had the largestconstitute ratio. ω-6/ω-3ratio within appropriate range in general, but ω-6/ω-3ratio aboverecommended in big cities.3. The standardized prevalence of MS was24.42%. Higher prevalence of MS and itsabnormal components were found in urban than in rural.4. The results of case-control study showed that the high educational level, unmarried status,regular medical examination and regular physical exercise were protective factors of MS, whereaslong meditation was risk factors of MS. In dietary factors, high-energy, high-fat, high fatty acidcomposition ratio were risk factor for MS among males; EPA, carbohydrates for energy wereprotective factors for MS among males. LA, S/M were the risk factors in the females, ALA, ω-6/ω-3PUFA ratio, S/P, cholesterol, carbohydrates for energy as protective factors.5. In general, the lower fat for energy, SFA for energy maintained at the range7%—10%,MUFA and PUFA maintained within10%, SFA:MUFA:PUFA maintained1:1.88:1.36, ω-6/ω-3ratio maintained from4to6,which make body maintain good metabolic state... |
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