Background Despite the association between cardiovascular diseases and periodontitis, there are scarce data on the impact of oral health in the dietary intake of patients with coronary artery disease (CAD). The aim of this study was to assess the association between dietary intake with periodontitis and present teeth in individuals with stable CAD. Methods This cross‐sectional study included 115 patients with stable CAD (76 males, aged 61.0 ± 8.3 years) who were under cardiovascular care in an outpatient clinic for at least 3 months. Dietary intake was recorded applying a food frequency questionnaire previously validated. Periodontal examinations were performed by two calibrated examiners in six sites per tooth from all present teeth. Blood samples were collected to determine serum levels of lipids. Multivariable logistic and linear regression models were fitted to evaluate the association between dietary outcomes and oral health variables. Results Individuals with periodontitis had significantly higher percentage of total energy intake from fried foods, sweets, and beans, and also had lower consumption of fruits than those without periodontitis. Presence of periodontitis was associated with lower percentage of individuals who reached the nutritional recommendation of monounsaturated fatty acids and higher blood concentration of triglycerides. Having a greater number of present teeth (≥20 teeth) was associated with higher intake of fibers and total calories. Conclusion In patients with stable CAD, the presence of periodontitis and tooth loss were associated with a poor dietary intake of nutrients and healthy foods, which are important for cardiovascular prevention.
Our aim was to develop a food frequency questionnaire (FFQ) to estimate vitamin K intake in patients receiving warfarin. We conducted a cross-sectional study. The FFQ was designed based on a literature review, and included foods containing ≥ 5 µg/100 g consumed by the study group. The correlation between the intake of vitamin K estimated by the questionnaire and habitual intake measured by two 24-hour dietary recalls was assessed, as well as correlations between FFQ, International Normalized Ratio (INR) and serum vitamin K levels. The mean intake of vitamin K, estimated by the FFQ, was 112.6± 82.7 µg/day, and the habitual dietary intake estimated by 24-hour dietary recalls was 85.1±75.5 µg/ day, with a significant correlation between both methods (r= 0.756; p< 0.001). There was no correlation between FFQ and INR (r= 0.054; p= 0.716), or between FFQ and serum vitamin K (r=-0.005; p= 0.982). The strong correlation between vitamin K intake measured by FFQ and habitual dietary intake measured by 24-hour dietary recalls suggests that the FFQ can be used to estimate vitamin K intake.
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