| Abatacept | csDMARDs | ||
---|---|---|---|---|
AY | AO | CY | CO | |
Total number of adverse events | 26 (50.0)* | 46 (63.0) | 8 (19.5) | 30 (60.0)$ |
Serious adverse events | 6 (11.5) | 20 (27.4)$ | 2 (4.9) | 18 (36.0)$ |
Infection | 3 (5.8) | 9 (12.3) | Â | 2 (4.0) |
 Pneumonia | 1 (1.9) | 4 (5.5) |  | 2 (4.0) |
 Pulmonary Mycobacterium  avium complex infection | 2 (3.8) |  |  | 1 (2.0) |
 Herpes zoster |  | 2 (2.7) |  |  |
 Cellulitis |  | 1 (1.4) |  |  |
 Septic arthritis |  | 1 (1.4) |  |  |
 Periodontal disease |  | 1 (1.4) |  |  |
Malignancy | 1 (1.9) | 6 (8.2) | Â | 3 (6.0) |
 Lung cancer |  | 2 (2.7) |  | 1 (2.0) |
 Breast tumor |  | 1 (1.4) |  | 1 (2.0) |
 Lymphadenopathy |  | 1 (1.4) |  | 1 (2.0) |
 Prostate cancer |  | 1 (1.4) |  |  |
 Bladder cancer |  | 1 (1.4) |  |  |
 Subcutaneous tumor | 1 (1.9) |  |  |  |
Others | Â | Â | Â | Â |
 Bone fracture |  | 3 (4.1) | 2 (4.9) |  |
 Joint surgery |  | 2 (2.7) |  | 3 (6.0) |
 Diabetes mellitus |  |  |  | 2 (4.0) |
 Heart failure |  |  |  | 2 (4.0) |
 Interstitial pneumonia |  | 1 (1.4) |  |  |
 Hyponatremia |  |  |  | 1 (2.0) |
 Hypothyroidism |  | 1 (1.4) |  |  |
 Gallstones | 1 (1.9) |  |  |  |
 Retinal detachment |  |  |  | 1 (2.0) |
 Hypersensitivity | 1 (1.9) |  |  |  |
 Subdural hematoma |  |  |  | 1 (2.0) |
 Hydrocephalus |  |  |  | 1 (2.0) |
Death | Â | Â | Â | 1 (2.0) (due to traffic accident) |