Table 2.
Comparison of Pelvic Floor Measures in Women With and Without Stress Urinary Incontinence by BMI Category
| Normala | Overweighta | Obesea | P Valuesb | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Controls (N=46) 1 |
Stress Incontinent (N=26)
2 |
Controls (N=32) 3 |
Stress Incontinent (N=32)
4 |
Controls (N=30) 5 |
Stress Incontinent (N=45)
6 |
Overall Controls vs. Stress Incontinent
(1, 3, 5 vs 2, 4, 6) |
Controls Across BMI Groups (1 vs 3 vs 5) |
Stress Incontinent Across BMI Groups
(2 vs 4 vs 6) |
|
| Measures of Urethral Function | |||||||||
| Urethral Pressure, cm H2O | |||||||||
| Maximal Urethral Closure Pressure | 69.8 ± 22.3 | 36.4 ± 11.7 | 70.8 ± 24.9 | 42.9 ± 19.0 | 70.1 ± 20.6 | 41.9 ± 18.3 | <.001 | .977 | .429 |
| Measures of Urethrovaginal Support | |||||||||
| POP-Q Point Aa, cm | −1.2 ± 0.8 | −0.4 ± 1.0 | −0.8 ± 0.9 | −0.6 ± 0.8 | −1.1 ± 0.9 | −0.7 ± 0.7 | <.001 | .220 | .414 |
| Urethral Axis (degrees from horizontal) Using Cotton-Tipped Swab | |||||||||
| At Rest | −11.2 ± 15.0 | −5.0 ± 9.6 | −4.6 ± 15.7 | −3.8 ± 12.7 | −0.2 ± 12.1 | 4.0 ± 10.7 | .001 | .001 | .006 |
| During Strain | 24.8 ± 19.5 | 27.1 ± 22.8 | 27.5 ± 19.9 | 25.8 ± 21.4 | 22.4 ± 18.0 | 33.5 ± 17.5 | .102 | .602 | .190 |
| During Kegel | −25.6 ± 14.1 | −13.1 ± 15.3 | −18.3 ± 16.4 | −15.1 ± 15.7 | −16.9 ± 21.6 | −8.3 ± 13.6 | <.001 | .039 | .169 |
| Measures Relating to Increased Demands on the Continence System | |||||||||
| Intravesical Pressure, cm H2O | |||||||||
| At Rest | 17.6 ± 12.8 | 15.5 ± 4.6 | 19.0 ± 4.5 | 21.0 ± 4.3 | 23.6 ± 4.6 | 24.7 ± 5.0 | .148 | .002 | <.001 |
| With Maximal Cough | 132.4 ± 28.5 | 136.8 ± 38.2 | 142.4 ± 34.2 | 156.5 ± 34.0 | 170.6 ± 35.3 | 185.9 ± 44.4 | .001 | <.001 | <.001 |
Data presented as mean ± SD
a
BMI categories as follows: Normal (18.5–24.9 kg/m2), Overweight (25.0– 29.9 kg/m2), and Obese (>30 kg/m2)
b
P values determined using simple linear regression or logistic regressions.