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Table 2 Clinical and radiological characteristics of 121 patients with AFB smear negative respiratory samples

From: A retrospective review of a tertiary Hospital’s isolation and de-isolation policy for suspected pulmonary tuberculosis

Characteristics  
Co-morbidities - no. (%#)  
Previous history of TB 27 (22.3)
Current or ex-smoker 48 (40)
Hypertension 28 (23.1)
Diabetes mellitus 23 (19)
Hyperlipidemia 19 (16.1)
Ischemic heart disease 15 (12.4)
Renal failure 13 (10.7)
Chronic lung disease 4 (3.3)
Malignancy 12 (9.9)
HIV 6 (4.9)
Presenting Symptoms - no. (%#)  
Cough 40 (30.3)
Fever 20 (16.7)
Anorexia 14 (12)
Loss of weight 20 (16.3)
Dyspnea 17 (13.8)
Hemoptysis 9 (7.6)
Radiological Findings - no.(%#)  
Abnormal CXR 116 (95.8)
Consolidation 40 (33)
Nodules 21 (17)
Cavitation 10 (8.2)
Other abnormality* 45 (37.2)
  1. TB = tuberculosis, HIV = human immunodeficiency virus.
  2. #percentages do not add up to 100% as each patient may have more than one co-morbidity, presenting symptom or abnormal radiological finding.
  3. *includes granuloma, pleural effusion and mass lesions.