The aim of this cross-sectional observational study is to examine the independent associations of urinary incontinence severity and post-void residual urine volume with frailty and other geriatric outcomes in older adults presenting to a urology outpatient clinic with urinary incontinence.
Study Type
OBSERVATIONAL
Enrollment
120
Karabuk Training and Research Hospital
Karabük, Merkez, Turkey (Türkiye)
RECRUITINGFrailty Level Assessed Using the FRAIL Scale
The primary outcome is frailty level, assessed using the five-item FRAIL Scale. The total score ranges from 0 to 5, with higher scores indicating greater frailty. Participants will be classified as robust (0 points), prefrail (1-2 points), or frail (≥3 points). The primary exposures are urinary incontinence severity, assessed using the ICIQ-UI SF total score (range: 0-21), and post-void residual urine volume, recorded in milliliters as the mean of two consecutive bladder scanner measurements performed within 10 minutes after voiding. The independent associations of ICIQ-UI SF score and post-void residual urine volume with frailty level will be examined in the same multivariable regression model after adjustment for prespecified covariates.
Time frame: During the single study visit (cross-sectional baseline assessment)
Physical Performance Assessed Using the Short Physical Performance Battery
Physical performance will be assessed using the Short Physical Performance Battery (SPPB), comprising standing balance, usual-paced walking, and five-repetition chair-rise tests. Each component is scored from 0 to 4, resulting in a total score ranging from 0 to 12. Higher scores indicate better physical performance. A total score of ≤8 will be considered indicative of low physical performance.
Time frame: During the single study visit (baseline assessment)
Functional Mobility Assessed Using the Timed Up and Go Test
Functional mobility will be assessed using the Timed Up and Go Test (TUG). Participants will stand up from a chair, walk three meters, turn, walk back to the chair, and sit down. Completion time will be recorded in seconds, with longer times indicating poorer functional mobility.
Time frame: During the single study visit (baseline assessment)
Motor-Cognitive Mobility Assessed Using the Dual-Task Timed Up and Go Test
Motor-cognitive mobility will be assessed using the Dual-Task Timed Up and Go Test (DT-TUG). Participants will complete the TUG while simultaneously performing serial subtraction by threes from 100. Completion time will be recorded in seconds, with longer times indicating poorer motor-cognitive mobility performance.
Time frame: During the single study visit (baseline assessment)
Handgrip Strength Measured Using a Hand Dynamometer
Handgrip strength will be measured in the dominant hand using a BASELINE hand dynamometer. Three trials will be performed, and the highest value, recorded in kilograms, will be used in the analysis. Values below 27 kg in men and below 16 kg in women will be classified as low muscle strength.
Time frame: During the single study visit (baseline assessment)
Isometric Quadriceps Muscle Strength Measured Using a Hand-Held Dynamometer
Isometric quadriceps muscle strength will be measured using a hand-held dynamometer (BASELINE) under a standardized testing protocol. Participants will perform two maximal voluntary isometric contractions with standardized verbal encouragement. The highest force value obtained from the two trials will be used in the analysis, with higher values indicating greater quadriceps muscle strength.
Time frame: During the single study visit (baseline assessment)
Concern About Falling Assessed Using the Falls Efficacy Scale-International
Concern about falling will be assessed using the 16-item Falls Efficacy Scale-International (FES-I). Each item is scored from 1 to 4, producing a total score ranging from 16 to 64. Higher scores indicate greater concern about falling. Scores of 16-19, 20-27, and 28-64 will be classified as low, moderate, and high concern about falling, respectively.
Time frame: During the single study visit (baseline assessment)
Sleep Quality Assessed Using the Pittsburgh Sleep Quality Index
Sleep quality will be assessed using the Pittsburgh Sleep Quality Index (PSQI), which evaluates subjective sleep quality, sleep latency, sleep duration, habitual sleep efficiency, sleep disturbances, use of sleep medication, and daytime dysfunction. The total score ranges from 0 to 21, with higher scores indicating poorer sleep quality. A total score greater than 5 will be considered indicative of poor sleep quality.
Time frame: During the single study visit, reflecting sleep during the previous month.
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