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. 2020 May;12(2):128-136.
doi: 10.1111/luts.12292. Epub 2019 Oct 23.

Relationship between frailty and lower urinary tract symptoms among community-dwelling adults

Osamu Soma  1 , Shingo Hatakeyama  1 , Atsushi Imai  2 , Teppei Matsumoto  1 , Itsuto Hamano  1 , Naoki Fujita  1 , Hiromichi Iwamura  1 , Teppei Okamoto  1 , Hayato Yamamoto  1 , Yuki Tobisawa  1 , Tohru Yoneyama  2 , Takahiro Yoneyama  1 , Yasuhiro Hashimoto  2 , Shigeyuki Nakaji  3 , Chikara Ohyama  1   2
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Relationship between frailty and lower urinary tract symptoms among community-dwelling adults

Osamu Soma et al. Low Urin Tract Symptoms. 2020 May.

Abstract

Objectives: To evaluate the relationship between frailty and lower urinary tract symptoms (LUTS), the association of frailty and LUTS remains unclear.

Methods: This cross-sectional study investigated LUTS and frailty in 710 individuals (249 men and 461 women, aged ≥60 years) who participated in the Iwaki Health Promotion Project between 2014 and 2015 in Hirosaki, Japan. Parameters of frailty were compared for individuals with mild and moderate to severe symptoms of LUTS. The International Prostate Symptom Score (IPSS) and Overactive Bladder Symptom Score (OABSS) were used to evaluate LUTS. Frailty was evaluated by the frailty phenotype (FP), modified frailty index (mFI), and frailty discriminant score (FDS). The influence of frailty on LUTS was investigated by multivariate logistic regression analyses.

Results: Frailty parameters of age, renal function, and lower physical activity were significantly associated with severity of IPSS and OABSS. FP and mFI were significantly associated with severity of OABSS and IPSS, respectively. The FDS was significantly associated with severity of IPSS and OABSS. FP, mFI, and FDS were significantly associated with severity of nocturia. Multivariate logistic regression analyses revealed that FDS was independently associated with the severity of IPSS, OABSS, and nocturia, whereas FP and mFI were significantly associated with the severity of nocturia alone.

Conclusions: Individuals with LUTS are potentially frailer than those without LUTS. Although the influence of frailty on LUTS is different depending on the measurement tool, attention for frailty is necessary for subjects with LUTS.

Keywords: IPSS; Nocturia; frailty; lower urinary tract symptoms.

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