Research Article

Clinical Features and Risk Factors of Active Tuberculosis in Patients with Behçet’s Disease

Table 1

Past medical history and medication of BD patients with and without ATB.

BD with ATB ()BD without ATB ()

Sex (male, %)13 (61.90%)35 (50.72%)0.369
Age ()0.450
Past medical history
 Previous contact with ATB patients (%)3 (14.29%)2 (2.90%)0.081
 Previous prophylactic treatment of TB (%)1 (4.76%)3 (4.35%)1.000
 Evidence of PTB a (%)13 (61.90%)17 (24.64%)0.002
Previous treatment of BD
 Glucocorticoid
  Maximal dosage (mg/d, median, IQR)b0 (0, 50)25 (0, 60)0.093
  Duration (months, median, IQR)0 (0, 3.5)3 (0, 13)0.028
 Biologics
  Infliximab (%)2 (9.52%)2 (2.90%)0.231
  Other TNF-α inhibitors (%)2 (9.52%)3 (4.35%)0.587
 Immunosuppressant
  CTX (%)5 (23.81%)11 (15.94%)0.515
  CsA (%)0 (0%)10 (14.49%)0.109
  MTX (%)1 (4.76%)3 (4.35%)1.000
  FK506 (%)1 (4.76%)2 (2.90%)0.554
  AZA (%)2 (9.52%)5 (7.25%)0.663
Current treatment of BDc
 Glucocorticoid dosage (mg/d, median, IQR)b0 (0, 15)5 (0, 32.5)0.177
 Biologics
  Infliximab (%)0 (0%)2 (2.90%)1.000
  Other TNF-α inhibitor (%)1 (4.76%)0 (0%)0.233
 Immunosuppressant
  CTX (%)1 (4.76%)11 (15.94%)0.281
  CsA (%)1 (4.76%)7 (10.14%)0.675
  MTX (%)0 (0%)0 (0%)
  FK506 (%)1 (4.76%)1 (1.45%)0.414
  AZA (%)1 (4.76%)1 (1.45%)0.414

aEvidence of PTB includes past history of TB infection and radiological features indicating PTB in chest CT. bAll forms of glucocorticoid were converted to the equivalent dosage of prednisone. cCurrent use of immunosuppressant and biologics indicates continuous use of the drug for 3 months before hospitalization, and the dosage of glucocorticoid records the maximal dose of glucocorticoid within 2 weeks before hospitalization. TNF-α: tumor necrosis factor-α; CTX: cyclophosphamide; CsA: ciclosporin A; MTX: methotrexate; FK506: tacrolimus; AZA: azathioprine; LEF: leflunomide; MMF: mycophenolate mofetilhs.