Background Maternal dietary patterns play an important role in the progress of gestational diabetes mellitus (GDM). The aim of the present study was to explore this association. Method A total of 388 pregnant women (122 case and 266 control) were included. Dietary intake were collected using a food frequency questionnaire (FFQ). GDM was diagnosed using a 100-gram, 3-hour oral glucose tolerance test. Dietary pattern was identified by factor analysis. To investigate the relation between each of the independent variables with gestational diabetes, the odds ratio (OR) was calculated. Results Western dietary pattern was high in sweets, jams, mayonnaise, soft drinks, salty snacks, solid fat, high-fat dairy products, potatoes, organ meat, eggs, red meat, processed foods, tea, and coffee. The prudent dietary pattern was characterized by higher intake of liquid oils, legumes, nuts and seeds, fruits and dried fruits, fish and poultry whole, and refined grains. Western dietary pattern was associated with increased risk of gestational diabetes mellitus before and after adjustment for confounders (OR = 1.97, 95% CI: 1.27–3.04, OR = 1.68, 95% CI: 1.04–2.27). However, no significant association was found for a prudent pattern. Conclusion These findings suggest that the Western dietary pattern was associated with an increased risk of GDM.
Although Iran is a high-risk country for esophageal squamous cell carcinoma (ESCC), the contribution of overall nutrient intakes to this high incidence rate is not yet clear. The aim of this study was to examine the association between nutrient patterns and risk of ESCC in Iran. Forty-seven patients with ESCC and 96 frequency-matched hospital controls underwent private interviews, and dietary habits were collected using a validated food-frequency questionnaire. Factor analysis was conducted and two major nutrient patterns were retained; factor 1 (high in pantothenic acid, vitamin C, potassium, vitamin B(6), magnesium, folate, thiamin, copper, carbohydrate, vitamin K, niacin, α-tocopherol, zinc, total fiber, fluoride, and polyunsaturated fatty acids) and factor 2 (high in saturated fatty acid, biotin, selenium, monounsaturated fatty acids, riboflavin, sodium, fat, cholesterol, calcium, phosphorus, protein, iron, vitamin E, manganese, vitamin D, and vitamin B(12)). Factor 2 was inversely associated with ESCC (OR = 0.06, 95% CI: 0.01-0.28; P = 0.008), whereas no significant association was found for factor 1 (OR = 0.45, 95% CI: 0.11-1.82). The results of the present study suggested a possible role for a nutrient pattern similar to factor 2 in reducing the risk of ESCC.
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