Cohort study demonstrates that dynapenic abdominal obesity increases urinary incontinence risk in older women, suggesting dual screening for muscle strength and belly fat.
Key Points
To evaluate cross-sectional and longitudinal associations between dynapenic abdominal obesity and the prevalence and incidence of urinary incontinence in middle-aged and older women.
Analyzed data from Waves 2 through 9 of the English Longitudinal Study of Ageing, comprising 3,143 women for cross-sectional analysis and 1,291 women for longitudinal analysis.
Defined dynapenia as grip strength < 16 kg and abdominal obesity as waist circumference ≥ 88 cm, evaluating self-reported urinary incontinence using multivariable logistic regression and Cox proportional-hazards models.
In cross-sectional analysis (N = 3,143; mean age 65.89 years), dynapenic abdominal obesity was strongly associated with prevalent urinary incontinence compared to the non-dynapenic, non-abdominally obese group (OR = 2.398, P < 0.001).
During follow-up, 763 incident urinary incontinence cases occurred, with the dynapenic abdominal obesity group having the highest risk (HR = 1.654, P = 0.003), followed by abdominal obesity alone (HR = 1.349, P < 0.001).