Fecal incontinence was associated with depression of any severity: insights from a large cross-sectional study

Current studies on the association between fecal incontinence (FI) and depression are very limited, and most of them are restricted to women or elderly patients. This study aims to evaluate in detail the association between FI and depression among US adults.

13,480 adults aged 20 years and older were selected from the National Health and Nutrition Examination Survey 2005-2010. Monthly loss of solid, liquid, or mucous stool was defined as FI. Clinical depression and depression severity were assessed by the validated Patient Health Questionnaide-9 (PHQ-9). Models of multivariate logistic regression were used to calculate adjusted odds ratios (ORs). A subgroup analysis was carried out to ensure that the results were stable.

After adjusting for covariates such as demographics, risk behaviors and associated comorbidities, the PHQ-9 score and clinical depression were both significantly associated with FI, with ORs and 95%CIs of 1.11 (1.10-1.13) and 3.01 (2.53-3.57). Depression of all severities was also significantly associated with FI. The ORs and 95%CIs of FI with mild depression, moderate depression, and moderately severe to severe depression were 2.29 (1.96-2.68), 3.44 (2.77-4.27) and 4.65 (3.61-6.00), respectively. Subgroup analyses showed no statistically significant interactions (P > 0.05).

In conclusion, FI significantly associated with depression of any severity. Like the elderly or female patients with FI, young and middle-aged or men with FI are also at high risk of depression and should also be the focus of depression screening and early intervention.