Sodium in Drinking Water in South Carolina.

Abstract: The potential contribution of drinking water sodium to total consumption and to blood pressure level, is explored in a South Carolina survey. Most (96 per ¢) of the population was served by drinking water containing <100 mg/l Na (median 14.8 mg/l). For households with water sources containing ≥ 100 mg/l Na. drinking water accounted for approximately 8.5 per ¢ of total estimated consumption. After adjustment for age, sex, race, brady mass index, education, and dietary sodium, a negative association between diastolic blood pressure and drinking water sodium levels was found. (Am J Public Health 1985; 75:772-774.) [ABSTRACT FROM AUTHOR]