Lower Urinary Tract Symptoms and Functional Ability in Older Adults: a Community-based Cross-sectional Study

Overview

Journal BMJ Open

Specialty General Medicine

Date 2022 Apr 26

PMID 35470185

Authors

Kyo Takahashi

Tomoki Tanaka

Yasuyo Yoshizawa

Mahiro Fujisaki-Sueda-Sakai

Bo-Kyung Son

Katsuya Iijima

Affiliations

Soon will be listed here.

Abstract

Objectives: Functional ability, or the ability to live actively in older age, is essential for healthy ageing. This study assessed the association between the five types of lower urinary tract symptoms (LUTS) and functional ability among community-dwelling older adults (≥65 years old).

Design: A cross-sectional study.

Setting: Community-dwelling older adults (≥65 years old) randomly selected from the basic resident register of Kashiwa city as part of the Kashiwa study.

Participants: The study included 916 community-dwelling older adults (481 male participants) in Japan.

Outcome Measures: A self-administered questionnaire was used to collect data regarding LUTS, which included frequency, nocturia, urgency, urinary incontinence and overactive bladder (OAB). Functional ability was measured using the Japan Science and Technology Agency Index of Competence. Sex-stratified logistic regression analyses were conducted, adjusting age, obesity, alcohol consumption, polypharmacy and comorbidities.

Results: Male participants experienced symptoms of frequency, nocturia, urgency, urinary incontinence and OAB at rates of 68.0%, 89.0%, 16.0%, 3.7% and 4.3%, respectively. Female participants experienced these symptoms at rates of 68.3%, 80.0%, 11.0%, 7.4% and 8.5%, respectively. Among male participants, lower functional ability was only associated with nocturia (≥3 times/night) (adjusted OR (AOR): 1.71, 95% CI 1.05 to 2.79). Contrarily, lower functional ability among female participants was significantly associated with frequency (AOR: 1.61, 95% CI 1.04 to 2.49), urgency (AOR: 2.06, 95% CI 1.08 to 3.95) and OAB (AOR: 2.43, 95% CI 1.15 to 5.11).

Conclusion: The different associations between LUTS and functional ability by sex might be related to differences in the effect of comorbidities and physical fatigue. Our results help clarify the multifaceted effects of LUTS in old age, the need for early detection and treatment of LUTS, and the importance of maintaining functional ability.

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