Patients with Major Depressive Disorder (MDD) (n = 170) were stratified at baseline according to high-sensitivity C-reactive protein (hs-CRP) levels into an inflammatory (hs-CRP ≥1 mg/L, n = 127) and a non-inflammatory (hs-CRP <1 mg/L, n = 43) group. Here, CRP is linked to major depressive disorder.