BackgroundThe health condition of old age is affected by various factors such as economic level, disease condition, and nutrition. With the aging population in Korea, the ratio of single-person households increased rapidly. Research on the health status and nutrition of the elderly in the single-person household is very insufficient. In this study, we compared the health and nutritional status of the elderly by the household type.MethodsData from the 2013 to 2014 Korea National Health and Nutrition Examination Survey were used. A total of 2,730 patients were classified into 2 groups (single-person, with family), and general, chronic disease, health behavior, nutrient intake, and food insecurity status were compared by the statistical analysis.ResultsSingle-person households had a low economic and educational level and a higher percentage of women. In addition, obesity, hypertension, dyslipidemia, stroke, myocardial infarction disease rate was significantly higher. Sing-person households answered that their subjective health status was bad, and their quality of life was low. As a result of analysis of the quality of the diet in the single-person, the intake of protein, calcium, iron, vitamin B2, niacin, and vitamin C was significantly lower. In particular, the intake of calcium was the most insufficient. Food insecurity has also been observed, including the inability to consume diverse and sufficient foods due to economic difficulties.ConclusionsMore attention should be paid to the health of single-person households in elderly population and various policies should be prepared.