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Table 2 Treatment duration for isolated thoracic tuberculosis (TB) according to the type of treatment, and for extrathoracic TB according to the disease location.

From: Factors associated with excessively lengthy treatment of tuberculosis in the eastern Paris region of France in 2004

Type of patients Treatment duration (months)
  6 6-9 9-12 12-18 > 18
Isolated thoracic TB, N = 279 163 (58.4%)* 46 (16.5%) 58 (20.8%) 10 (3.6%) 2 (0.7%)
   Four-drug regimen, N = 241 146 (60.6%) 30 (12.5%) 53 (22.0%) 10 (4.1%) 2 (0.8%)
   Three-drug regimen without ethambutol, N = 23 14 (60.9%) 7 (30.4%) 2 (8.7%) - -
   Three-drug regimen without pyrazinamide, N = 8 3 (37.5%) 2 (25.0%) 3 (37.5%) - -
   Four drug regimen and isoniazid resistance, N = 7   7 (100%)    
Extrathoracic TB N = 199 53 (26.6%) 34 (17.1%) 57 (28.7%) 44 (22.1%) 11 (5.5%)
   Meningeal, N = 7 2 (28.6%) 0 2 (28.6%) 3 (42.8%) -
   Isolated nodal, N = 98 34 (34.7%) 18 (18.4%) 29 (29.5%) 13 (13.3%) 4 (4.1%)
   Isolated osteoarticular, N = 22 2 (9.1%) 2 (9.1%) 6 (27.3%) 9 (40.9%) 3 (13.6%)
   Disseminated or military, N = 41 6 (14.6%) 4 (9.8%) 11 (26.8%) 16 (39.0%) 4 (9.8%)
   Other, N = 31 9 (29.0%) 10 (32.3%) 9 (29.0%) 3 (9.7%) -
  1. Abnormally lengthy treatments are in bold.