Medical history of the patient population: malignancy, mycobacterial infection and autoimmune disease
| Diagnosis | N | % |
| Malignancy | 51 | 38.9 |
| Pulmonary malignancy | 7 | 5.6 |
| NSCLC | 7 | 5.6 |
| Gynaecological malignancy | 22 | 16.8 |
| Breast carcinoma | 20 | 15.3 |
| Ovarian carcinoma | 1 | 0.8 |
| Cervical carcinoma | 1 | 0.8 |
| Gastrointestinal malignancy | 6 | 4.6 |
| Oesophageal carcinoma | 1 | 0.8 |
| Gastric adenocarcinoma | 2 | 1.5 |
| Colonic carcinoma | 3 | 2.3 |
| Various malignancies | 13 | 9.8 |
| Prostate carcinoma | 4 | 3.1 |
| Testis carcinoma | 1 | 0.8 |
| Renal cell carcinoma | 2 | 1.5 |
| Lymphoma | 3 | 2.3 |
| Osteogenic sarcoma/leyomyosarcoma | 2 | 1.5 |
| Thyroid hurtle cell carcinoma | 1 | 0.8 |
| Multiple malignancies | 3 | 2.3 |
| Breast and renal cell carcinoma | 1 | 0.8 |
| Breast carcinoma and CML | 1 | 0.8 |
| ENT spinocellular carcinoma and NSCLC | 1 | 0.8 |
| Autoimmune or systemic disease | 0 | 0.0 |
| Mycobacterial infection | 6 | 4.6 |
| No specific medical history | 74 | 56.5 |
| Total | 131 | 100.0 |
All percentages are relative to the study population.
CML, chronic myeloid leukaemia; ENT, ear, nose and throat; NSCLC, non-small-cell lung carcinoma.