From: Clinical characteristics and treatment outcomes of tuberculosis in the elderly: a case control study
Characteristics | Older | Younger | p-value |
---|---|---|---|
Positive AFB smear | 67/190 (35) | 66/247 (27) | 0.060 |
Positive culture for M.TB | 155/191 (81) | 169/248 (68) | 0.002 |
Positive TB PCR | 146/190 (77) | 168/247 (68) | 0.053 |
Positive IGRA | 56/63 (89) | 87/97 (90) | 1.000 |
Positive tuberculin skin test | 86/92 (93) | 133/143 (93) | 1.000 |
Confirmed by bronchoscopy in pulmonary TB* | 64/173 (37) | 53/222 (24) | 0.005 |
Drug resistances | |||
Resistance to INH | 10/137 (7) | 15/160 (9) | 0.665 |
Multi-drug resistance | 1/137 (1) | 6/160 (4) | 0.185 |