The relationship between testosterone deficiency (TD) and depressive symptoms among obese individuals has not been fully clarified. This study explores the relationship between TD and depressive symptoms in obese males and possible mediating factors.
These cross-sectional analyses included 6177 participants from the National Health and Nutrition Examination Survey (NHANES) conducted between 2011 and 2016. Logistic regression models were employed to assess the association of TD with depressive symptoms in different subgroups. Sensitivity analyses were performed using restricted cubic splines (RCS), subgroup analysis, and mediation analysis.
There was a significant positive correlation between TD and depressive symptoms in obese males (OR = 1.33, 95% CI = 1.04-1.69,
In obese males, testosterone levels exhibit an L-shaped correlation with depressive symptoms, with inflammation acting as a statistical mediating factor. These findings offer new hypotheses for future clinical interventional studies.

