Patient on prednisone ≥ 20 mg/day (or equivalent dose of other corticosteroid) for ≥ 1 month WITH an underlying immunosuppressive disorder or COPD
Patient on prednisone ≥ 20 mg/day (or equivalent dose of other corticosteroid) for ≥ 1 month AND on a concomitant immunosuppressant (e.g. TNF-α inhibitors, methotrexate, azathioprine)