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Medical AI Inquiry: You was designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.  Labels: OBJECTIVE, METHODS, RESULTS. Meshes: Adult, Analysis of Variance, Body Mass Index, Cross-Sectional Studies, Diet Records, Exercise, Female, France, Health Behavior, Health Promotion, Humans, Logistic Models, Male, Metabolic Syndrome, Middle Aged, Sedentary Behavior, Surveys and Questionnaires.
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Are sedentary behaviour , physical activity and dietary patterns independently associated with the metabolic syndrome? Context: This study assessed the independent relationships of daily sitting time, levels of work and leisure-time physical activity (PA), and dietary patterns of patients with the metabolic syndrome (MetS). This population-based, cross-sectional study included 3090 French subjects aged 35-64 years. Daily time spent sitting and PA levels were assessed by an interview-administered questionnaire, while dietary patterns were identified using the factorial method of principal component analysis. Independent associations of lifestyle behaviours with the MetS were assessed by multivariable logistic-regression models adjusted for age, centre, educational level, smoking status, total calorie intake, heart rate and menopausal status. The multivariable-adjusted ORs [95% CI] for MetS in the fourth quartile of sitting time and leisure-time PA were 1.65 [1.11-2.44] (P for trend < 0.01) and 0.58 [0.40-0.84] (P for trend < 0.001), respectively, for men, and 2.35 [1.41-3.92] (P for trend < 0.01) and 0.52 [0.33-0.82] (P for trend < 0.01), respectively, for women. Work PA was not favourably related to the MetS, particularly in women. An 'energy-dense' dietary pattern was independently associated with higher ORs for the MetS in both genders. However, accounting for body mass index (BMI) weakened the associations, which otherwise remained significant for leisure-time PA and the energy-dense dietary pattern in men, suggesting that BMI may be a potential mediator of these relationships.
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This study demonstrated a dose-response association between sitting time, an energy-dense dietary pattern and the MetS, together with a graded inverse association between leisure-time PA and the MetS. In addition to the usual advice for PA and healthy eating, limiting the amount of time spent sitting should also be promoted through public-health initiatives. Final Decision: yes