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Association of constipation with all-cause mortality among individuals with type 2 diabetes: A retrospective cohort
Xianhua Li1, Haibin Wen2, Jing Ke1
1Center for Endocrine Metabolism and Immune Diseases, Beijing Lu He Hospital, Capital Medical University, Beijing, China.
Background:
Constipation is a common complication in type 2 diabetes mellitus (T2DM), yet its impact on mortality remains unclear. This study aimed to investigate the association between constipation and all-cause mortality in patients with T2DM.
Methods:
We conducted a retrospective cohort study using data from the National Health and Nutrition Examination Survey (NHANES) 2005-2010. Mortality outcomes were ascertained through linkage to National Death Index records until December 31, 2019. The association between constipation and all-cause mortality was assessed using weighted Cox proportional hazards regression models. Kaplan-Meier curves were then employed to visualize survival probabilities. Effect modification was explored through stratified analyses and interaction tests.
Results:
Of 1,339 participants with T2DM, 146 (10.90%) reported constipation. During a median follow-up of 10.75 years, 411 deaths occurred (57 in the constipation group, 354 in the non-constipation group). Fully adjusted weighted Cox regression analysis revealed that constipation was associated with increased all-cause mortality (HR 1.50, 95% CI 1.01-2.22, P = 0.04). Kaplan-Meier analysis demonstrated a significantly lower survival probability in patients with constipation (log-rank P < 0.05). Stratified analyses and interaction tests corroborated these findings across various subgroups.
Conclusions:
Constipation is associated with elevated all-cause mortality risk in T2DM patients. These findings suggest that constipation management may be an important consideration in improving long-term outcomes for individuals with T2DM.
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