Is seated voiding associated with lower urinary tract symptoms, health conditions, or marital status? Findings by age group from the 2023 Japan Community Health Survey

Seated voiding may be an attempt to obviate voiding dysfunction, improve physical stability during voiding, and prevent messy bathroom contamination. Therefore, we hypothesized that seated voiders had a higher prevalence of lower urinary tract symptoms (LUTS), deteriorating health conditions, and a higher marriage rate than standing voiders. Of the participants from the 2023 Japan Community Health Survey conducted by the Japanese Continence Society, 2936 men (mean age: 53.6 years old) were divided into sitting and standing groups based on their posture when voiding at home. Characteristics of the two groups were compared, and factors associated with seated voiding stratified by age were investigated using multivariable logistic regression analysis. One-thousand six-hundred and sixty men (57%) voided in the sitting position at home, and the proportion of seated voiding decreased with age. On multivariable analysis, comorbidities other than benign prostatic hyperplasia were associated with the standing group aged 40-59, and storage symptoms were associated with the seated group aged 60 and older. Being married was significantly and consistently associated with seated voiding across all ages. Approximately 60% of Japanese men void in the sitting position at home. There are certain differences in the associations of LUTS and health conditions with voiding position by age, while seated voiding is consistently associated with marital status throughout all ages, which implies that sanitation matters.