Fig. 1From: Interrelationships among common symptoms in the elderly and their effects on health-related quality of life: a cross-sectional study in rural KoreaSeverity of each symptom according to the presence of any other symptom. Light blue represents individuals with only one of the corresponding symptoms on the x-axis. Blue represents individuals with any other symptoms in the presence of the corresponding symptom. Symptom severity was assessed on a seven-point Likert scale ranging from one to sevenBack to article page