Background: Cardiovascular events (CVE) are increased in rheumatoid arthritis (RA), psoriatic arthritis (PsA) and psoriasis (PsO) patients. Objectives: To determine the impact on CVE from methotrexate (MTX), TNF inhibitors (TNFi), corticosteroids (CS) and non-steroidal anti-inflammatory drugs (NSAIDs) (non-selective [ns-]NSAIDs and coxibs) in RA, PsA, and PsO. Methods: Medline, Embase, Cochrane databases were systematically searched. Observational studies and randomized trials reporting CVE (myocardial infarction [MI], heart failure [HF], strokes, and major cardiovascular adverse effects [MACEs]) in RA and in PsA/PsO patients treated with MTX, TNFi, CS and NSAIDs were considered. Studies with <400 patients, or < one year's duration, or including patients > mean age of 80 years were excluded. Random-effects meta-analyses were performed. Results: Out of 2630 references, 34 studies were included, 28 for RA and 6 for PsA/PsO. In RA, both TNFi (RR 0.70, 95% CI, 0.54-0.90; p=0.005) and MTX (RR 0.72, 95% CI, 0.57-0.91; p=0.007) decreased all CVE. TNFi decrease MI, strokes and MACEs. MTX decreases MI. NSAIDs increased all CVE (RR 1.18, 95% CI 1.01-1.38; p=0.04) and strokes. Among NSAIDs only rofecoxib (RR 1.58, 95% CI 1.24-2.00; p<0.001) significantly impacted all CVE. CS increased all CVE (RR 1.47, 95% CI 1.34-1.60; p<0.001), MI, HF, strokes, and MACEs. In PsA/PsO, systemic therapy decreased all CVE (RR 0.75, 95% CI, 0.63-0.91; p=0.003). Conclusions: In RA, TNFi and MTX are associated with a decrease in all CVE while CS are associated with an increase of all CVE. The deleterious effect of NSAIDs on CVE is related to rofecoxib. While current evidence suggests deleterious cardiovascular effects of CS and rofecoxib in RA, targeting inflammation with MTX and TNFi may be cardioprotective.