Association between Sodium Excretion and Obesity of Adults in Gwangju / 대한지역사회영양학회지

ABSTRACT

PURPOSE: The aim of this study was to analyze the association between sodium excretion and obesity for healthy adults in the Gwangju area. METHODS: The participants included 80 healthy adults aged 19 to 69 years in Gwangju. The dietary intake and sodium excretion were obtained using the 24-hour recall method and 24 hour urine collection. The participants were classified into two groups according to the amount of urinary sodium excretion (≤ 141.75 mmol/dL, > 141.75 mmol/dL). RESULTS: After adjusting for sex, age, smoking history, and income, the high excretion of sodium group was significantly higher for weight, body mass index, body fat mass, percent body fat, visceral fat area (VFA), waist circumference, hip circumference, and WHR. The energy and nutrients intake were significant after adjusting for sex, age, smoking history, and income. The LSE group had a significantly higher fat intake and Na/K intake ratio. The HSE group had significantly higher fiber intake, and K intake. As the amount of urinary sodium excretion increased, the risk of obesity before correction was 3.57 (95% CI 1.13–11.25) times greater, and the risk of obesity of T3 increased significantly by 3.33 times (95% CI 1.05–10.59). After correcting for sex and age, the obesity risk of T2 increased significantly by 4.23 times (95% CI 1.11–16.06), and after correcting for sex, age, smoking history, and income, the obesity risk of T2 increased significantly by 6.81 times (95% CI 1.44–32.19) the risk of obesity. CONCLUSIONS: An association exists between sodium excretion and obesity in Korean adults. In this study, the high excretion of sodium group was obese and the risk of obesity was higher than the low excretion of sodium group.