Background:It has been shown that life style modification may decrease the prevalence of metabolic syndrome, but this intervention has not been reported in community setting.ObjectivesEffect of lifestyle modification on prevalence of metabolic syndrome and its components were assessed in an urban population.Materials and Methods:In 6870 participants of Tehran Lipid and Glucose Study aged 20-74 years, the prevalence of metabolic syndrome and its components were measured before and after a 3.6 years interval. Lifestyle intervention was employed at a community level including 2961 individuals and also 3909 subjects which were recruited as controls. Logistic regression analysis was adjusted for age, sex and medications.ResultsAfter 3.6 years, the rise in the prevalence of metabolic syndrome was less prominent in intervention than control group (P < 0.002 for increase of metabolic syndrome prevalence between groups), with an OR of 0.84 (confidence interval 0.75-0.95). After intervention the prevalence of abdominal obesity, elevated fasting glucose levels, elevated triglyceride and low HDL cholesterol were more prominent in control group, as compared to intervention group.Conclusions:Community based lifestyle modifications in Tehranian adults delayed rise in the prevalence of metabolic syndrome and some of its components.
BackgroundRefined grains and white rice have been associated with elevated risk of type 2 diabetes mellitus (T2DM). In this study, we sought to quantify the effect of white rice intake on incident T2DM in two prospective population-based cohort studies from Iran, where white rice is one of the main staple.MethodsWe used follow-up data from 9,182 participants from Golestan Cohort Study (GCS, 2004–2007, conducted mainly in rural areas) and 2,173 from Tehran Lipid and Glucose Study (TLGS, 2004–2006) who did not have T2DM and other chronic diseases at baseline. Diet was assessed using validated food frequency questionnaires. Multivariable logistic regression models were used to estimate adjusted odds ratios (ORs) for incident T2DM.ResultsWe documented 902 new cases of T2DM in GCS and 81 in TLGS. Age-standardized cumulative incidence of T2DM was 9.9% in Golestan and 8.0% in Tehran. Daily white rice intake was significantly higher among residents of Tehran compared to Golestan (median daily intake: 250 vs. 120 grams; P-value < 0.001). After adjustment for potential confounders, there was no significant association between daily white rice intake and incident T2DM in GCS. In TLGS, the adjusted OR (95% confidence interval (CI)) was 2.1 (1.1, 3.9) comparing participants with daily white rice intake of >250 grams/day to those with <250.ConclusionsWe observed an increased lieklihood of T2DM associated with high white rice intake among residents of Tehran and no association in Golestan. Our findings, if further supported by other studies, have important public health implications especially for countries where white rice is a major staple and diabetes is increasing rapidly incidence is high. Further research is needed to investigate lack of an association between lower levels of white rice intake and T2DM.Electronic supplementary materialThe online version of this article (doi:10.1186/s12889-016-3999-4) contains supplementary material, which is available to authorized users.
BACKGROUND AND OBJECTIVESTo improve cardiovascular (CV) health of American population, the American Heart Association (AHA) developed definitions of ideal, intermediate, and poor CV health based on 7 accessible health metrics. The applicability of this construct and the distribution of its components in the community-based populations in the Middle East region have not been reported.DESIGN AND SETTINGSA prospective population-based cohort study conducted from 1999 to 2011.METHODSWe used data from phase 4 of Tehran Lipid and Glucose Study (2009–2011) (2861 women and 2004 men, aged ≥ 20 years) to estimate the frequency of CV health levels (ideal, intermediate, and poor) in adults of both genders, and the frequency of each metric at each level of CV health. The median or mean of each CV health metric was also estimated in the whole spectrum of CV health in all subgroups.RESULTSOnly 1 adult participant met all 7 ideal CV health metrics; 25.01% of women and 26% of men had intermediate CV health; 74.8% of women and 74% of men exhibited poor CV health. Only 19.7% of women and 10.3% of men had 5 or more ideal CV health metrics. Nonsmoking was the most frequent ideal health behavior. A total of 89.6% of participants had 1 or 2 ideal CV health behaviors. Ideal smoking and fasting plasma glucose had the highest frequency of CV health factors among others.CONCLUSIONThe frequency of ideal CV health was extremely low in this cohort of adults. The frequency of intermediate CV health was also low, and it may be significantly lower in the general population.
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