The effective response rate was 21.0% (84 individuals). The mean age of the subjects was 81.8±3.9 years, and the ratio of those with complaints (the rate of self-reported prevalence of urinary incontinence (UI)) of urinary incontinence based on self-reporting was 54.8% (46 individuals). The mean age of the subjects with urinary incontinence was 82.3±4.0 years, and that of those without was 81.0 ±3.7 (years), showing no significant difference (p=0.144, Mann-Whitney U-test). Of the subjects, 26 (31.0%) were under certification of long-term care needs, among which 7 (8.3%) and 5 (6.0%) subjects required support 1 and 2, respectively; 4 (4.8%), 5 (6.0%), 1 (1.2%), 3 (3.6%), and 1 (1.2%) subjects required long-term care 1, 2, 3, 4, and 5, respectively. The ICIQ-SF of the subjects with no certification of requiring support or requiring long-term care were 3.3±3.9. The respective values of those subjects requiring support 1 and 2 were 4.9±4.9 and 7.2±5.7. The respective values of those subjects requiring long-term care 1, 2, and 4 were 3.0±3.6, 6.4±5.9, and 12.3±10.8. As such, a significant difference was observed between the level of certification of long-term care needs and ICIQ-SF (p=0.017, Bonferroni) (Fig. 1). As the requiring long-term care 3 and 5 was one individual, these two excluded from the analysis.
Regarding the volume of urinary incontinence, a small, medium, and large amount was the case for 33 (39.3%), 11 (13.1%), and 2 (2.4%), respectively. Regarding the timing of urinary incontinence, just before arriving at the toilet was the case for 28 (33.3%), following a cough or sneeze was the case for 20 (23.8%), during sleep for 6 (7.1%), during bodily movements for 3 (3.6%), when dressing after voiding for 2 (2.4%), leakage for a known reason 4 (4.8%), and constant leakage for 1 (1.2%) subject.
Regarding the presence of an illness, the ICIQ-SF for subjects with and without asthma was 7.29±4.5 and 3.95±4.7, respectively, showing a significantly higher value for those with asthma (p=0.044, Mann-Whitney U-test). However, for present illnesses such as diabetes, urological diseases, and gynecological diseases, there was no significant differences regarding the status of urinary incontinence (p=0.418, Mann-Whitney U test).