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Relationship Between A Body Shape Index and Self-Reported Stress Urinary Incontinence Among US Women: A
Xingyun He1, Fenxiong Liang2, Yuewen Guo3
1Department of Gynecology, Shunde Women and Children's Hospital, Guangdong Medical University, Foshan, China.
Introduction And Hypothesis:
Stress urinary incontinence (SUI) is common among women, but its link with A Body Shape Index (ABSI) is not well understood. This study investigates the association between ABSI and SUI risk in women, exploring variations across different subgroups.
Methods:
Data from National Health and Nutrition Examination Survey (2001-2020) were analyzed. A weighted multivariable logistic regression was performed to examine the relationship between ABSI and SUI risk, calculating odds ratios and 95% confidence intervals. A restricted cubic spline (RCS) analysis was used to assess any nonlinear associations. Subgroup analyses and interaction tests were conducted to explore the influence of factors on the ABSI-SUI relationship. Sensitivity analyses were also performed to ensure the robustness of the findings.
Results:
The analysis, after adjusting for potential confounders, showed a significant association between ABSI and SUI risk (p < 0.001). The RCS analysis indicated a nonlinear relationship (p for nonlinear = 0.02) with a turning point at an ABSI of 0.081. Subgroup analyses revealed that the association between ABSI and SUI was stronger in women with lower BMI, non-Mexican ethnicity, and those without hypertension (p for interaction < 0.05). Sensitivity analyses confirmed the consistency of these findings, supporting their robustness.
Conclusion:
Higher ABSI is associated with an increased risk of SUI in US women, particularly in specific subgroups. This suggests that ABSI could be a valuable measure for identifying women at higher risk of SUI.
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