Clinical characteristics and laboratory findings of the 11 patients with rheumatoid arthritis
| Value | |
| Female | 9 (81.8%) |
| Age, mean±SD (years) | 68.1±8.8 |
| Smoker | 2 (18.2%) |
| Cryptococcal meningitis | 1 (9.1%) |
| Respiratory failure | 2 (18.2%) |
| Comorbidity | |
| Respiratory disease | 7 (63.6%) |
| Interstitial pneumonia | 1 (9.1%) |
| Pulmonary emphysema | 0 |
| Previous pulmonary tuberculosis | 1 (9.1%) |
| Bronchiolitis | 2 (18.2%) |
| Non-tuberculosis mycobacteria | 2 (18.2%) |
| Others | 1 (9.1%) |
| Non-respiratory disease | 1 (9.1%) |
| Diabetes mellitus | 0 |
| Advanced solid tumour | 0 |
| Chronic kidney disease | 0 |
| Chronic liver disease | 1 (9.1%) |
| Immunosuppressive therapy or chemotherapy | 10 (90.9%) |
| Others | 2 (18.2%) |
| Symptoms | |
| Asymptomatic | 5 (45.5 %) |
| Fever | 4 (36.4%) |
| Cough | 4 (36.4%) |
| General fatigue | 1 (9.1%) |
| Impaired consciousness | 0 |
| Dyspnoea | 1 (9.1%) |
| White cell count (mm3) | 8655±4292 |
| Lymphocyte count (mm3) | 1438±628 |
| Neutrophil count (mm3) | 5616±2508 |
| C reactive protein (mg/dL) | 4.18±5.48 |
| Positive for serum cryptococcal antigen | 10 (90.9%) |