did not reach statistical significanceP = 0.0886
Conversely, while keeping neutrophil counts constant, there was a negative relationship between the total amount of physical activity and depressive symptoms, though this relationship did not reach statistical significance (coeff = − 0.0057, P = 0.0886).Therefore, to elucidate the specific interactions among these three variables, the total amount of physical activity was considered as a moderating variable.