摘要：The elderly people are prone to be affected by quality of life (QOL) by nocturia becoming the multiple times. A purpose of this study was to determine it about a factor associated with the night urination. This survey was conducted in 2015 as a cross-sectional study. Anonymous, self-administered questionnaires were used to prevent individuals from being identified. The analysis subjects were 699 elderly people with the nocturia which belonged to club of the aged 65 years or older. Those with nocturia were placed in the Nocturia-1 group if they reported experiencing nocturia once per night or in the Nocturia- ≥ 2 group if they reported experiencing nocturia two or more times per night. We analyzed the relationships between the characteristics, lower urinary tract symptoms, and opportunities to go outdoors in the Nocturia-1 and Nocturia- ≥ 2 groups based on sex using the χ2 test. In addition, to investigate the factors that influence the change from nocturia once per night to two or more times per night, we performed logistic regression analysis using the χ2 test on the characteristics and lower urinary tract symptoms that showed significant differences separately for men and women. Among the men, factors with a significant positive relation-ship were age, diabetes mellitus, lower back pain, daytime frequency, and urinary urgency. Among the women, factors with a significant positive relationship were age, requiring support 1-requiring long-term care 2, urinary urgency, and feeling of incomplete emptying. It was suggested that the life of elderly people improved by nocturia not increasing.
