prednisone, prednisolone, methylprednisolone) * Initial drug resistance to isoniazid and/or * Antimetabolites (eg, rifampicin([aOR] 4.8) methotrexate, azathioprine, lefl unomide) * Smoking([aOR] 3.1) * T-cell inhibitors (eg, * Being male([aOR] 3.4) ciclosporin, tacrolimus) * History of previous * Alkylating agents (eg, treatment([aOR] 2.8) cyclophosphamide, chlorambucil) * Alcoholism*([aOR] 2.2) * Biological agents * Diagnosis by community * Tumour necrosis factor or survey([aOR] 2.1) interleukin 2 blockers (eg, etanercept, infl iximab, * Weight < 35kg ([aOR] 3.8) adalimumab) * Humanised
chimaeric monoclonal antibodies (eg, basiliximab, daclizumab, muromonab-CD3, tacrolimus) * Non-steroidal anti-inflammatory drugs (eg, ibuprofen, diclofenac) Figure 10.