Department of Urology, Faculty of Medical Science, University of Fukui, Eiheiji-cho, Fukui, Japan.
Neurourol Urodyn. 2019 Nov;38(8):2250-2254. doi: 10.1002/nau.24126. Epub 2019 Jul 23.
We evaluated the relationship between body mass index (BMI), including low BMI, and nocturia in Japanese women.
We collected data on 18 952 women who participated in a multiphasic health screening in Fukui, Japan, in 2006. The participants were asked to report any current or previous disease. Self-reported current body weight and height were used to calculate the BMI. We analyzed the relationship between nocturia, as assessed by a questionnaire, and other variables including age, BMI, and comorbidities.
The participants' mean age was 60.6 years. Overall, the prevalence of nocturia (two or more voids/night) was 4.3% and increased in an age-dependent manner. BMI did not affect nocturia in the young participants. The prevalence of nocturia was higher in the high-BMI women (>25.0 kg/m ) in their fifth and sixth decades, but the prevalence was higher in the low-BMI (<18.5 kg/m ) in the women more than 80-years old. A multivariate analysis revealed a significant association between nocturia and the following: age, BMI, sleep disturbance, arteriosclerosis, cerebrovascular disease, chronic pulmonary disease, diabetes mellitus, and hypertension. Not only high BMI (which is already reported as a risk of nocturia) but also low BMI was a factor related to nocturia.
Our findings indicate that in addition to obesity, low BMI is a factor of nocturia in women.
我们评估了体质指数（BMI），包括低 BMI，与日本女性夜尿症之间的关系。
我们收集了 2006 年在日本福井参加多阶段健康筛查的 18952 名女性的数据。参与者被要求报告任何当前或以前的疾病。自我报告的当前体重和身高用于计算 BMI。我们分析了夜尿症（通过问卷评估）与其他变量（包括年龄、BMI 和合并症）之间的关系。
参与者的平均年龄为 60.6 岁。总体而言，夜尿症（每晚两次或更多次排尿）的患病率为 4.3%，并呈年龄依赖性增加。BMI 对年轻参与者的夜尿症没有影响。在第五和第六个十年中，高 BMI（>25.0kg/m ）的女性中夜尿症的患病率较高，但在 80 岁以上的女性中，低 BMI（<18.5kg/m ）的患病率较高。多变量分析显示，夜尿症与以下因素显著相关：年龄、BMI、睡眠障碍、动脉硬化、脑血管疾病、慢性肺部疾病、糖尿病和高血压。不仅高 BMI（已被报道为夜尿症的危险因素），而且低 BMI 也是与夜尿症相关的因素。
我们的研究结果表明，除肥胖外，低 BMI 也是女性夜尿症的一个因素。
