Most studies point out BMI and age as risk factors for
UI. Higher BMI goes along with a higher intrapelvic
pressure, which can lead to urinary incontinence, but is a
modifiable risk factor [14, 25]. Evidence suggests that
weight loss reduces intraabdominal and intravesicular
pressure, which leads to reduced urethral mobility, and this
seems to reduce risk and episodes of stress and urge UI [13,
14, 24]. The unmodifiable risk factor higher age also goes
along with a higher risk for and prevalence of UI [14, 19].
Although age and BMI in our study also were significantly
associated with urinary incontinence, the effect size was too
small to translate into clinical significance