1054 FACTORS ASSOCIATED WITH ESTIMATED DAILY SALT INTAKE IN PATIENTS WITH HYPERTENSION AND CHRONIC KIDNEY DISEASE

Abstract

Objectives: Salt restriction is one of the important life-style modifications for prevention and/or management of hypertension. Although guidelines for management of hypertension recommend that daily salt intake is < 6 g/day, it is still higher in Japan than in Western countries. We examined current status of estimated salt intake in Japanese patients with hypertension and/or chronic kidney disease. Methods: Consecutive outpatients (n = 985) who had been measured estimated salt intake were enrolled. The estimated salt intake was calculated using the formula of the Japanese Society of Hypertension Guideline for the Management of Hypertension (JSH2009). We examined percentage of attaining target estimated salt intake (<6 g/day) and its correlates. Results: Baseline values of age, female gender, office blood pressure (BP), body mass index (BMI) and estimated salt intake were 59.5 ± 17.9 years, 53.3 %, 127 ± 19/74 ± 12 mmHg, 25.1 ± 4.3 kg/m2 and 8.3 ± 2.3 g/day, respectively. The attaining target level of estimated salt intake was 15.1%. The office diastolic BP, BMI, hemoglobin A1c and serum triglyceride levels in patients who attained target estimated salt intake were significantly lower than in patients who did not attain it. Age and gender adjusted logistic analysis indicated that obesity (odds ratio = 0.61, 95% CI = 0.43 – 0.88, p < 0.01) and diabetes mellitus (odds ratio = 0.62, 95% CI = 0.38 – 0.99, p < 0.05) were negatively associated with attaining target estimated salt intake. Conclusions: The attaining target level of estimated salt intake is still low in Japanese patients, especially in diabetic and obese patients.