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Table 1 Characteristics of the 33 patients
| Variables | Total (n = 33) |
|---|---|
| Age at onset of MAC, yrs ± SD | 57 ± 12 |
| Age (when found to be resistant), yrs ± SD | 67 ± 9 |
| Female, n (%) | 31 (93.9) |
| Body mass index, kg/m2 ± SD | 17.2 ± 5.0 |
| Smoking history, n (%) | |
| Current/Former/Never | 0 (0)/3 (9.1)/30 (90.9) |
| Pack-years ≥20, n (%) | 1 (3.0) |
| Alcohol abuse, n (%) | 1 (3.0) |
| Underlying respiratory disease, n (%) | |
| Old pulmonary tuberculosis | 2 (6.1) |
| Bronchiectasis | 2 (6.1) |
| Interstitial pneumonia | 1 (3.0) |
| Underlying systematic disease, n (%) | |
| Old cerebral infarction | 1 (3.0) |
| Diabetes mellitus | 1 (3.0) |
| Radiographic features, n (%) | |
| NB/FC | 8 (24.2)/25 (75.8) |
| Total lesion extenta 1/2/3, n (%) | 2 (6.1)/24 (72.7)/7 (21.2) |
| Cavity at the beginning of treatment, n (%) | 25 (75.8) |
| Laboratory | |
| White blood cell, /μl ± SD | 5590 ± 1437 |
| Neutrophil, /μl ± SD | 3915 ± 1291 |
| Hemoglobin, g/dl ± SD | 12.4 ± 1.3 |
| Serum albumin, g/dl ± SD | 3.8 ± 0.6 |
| CRP, mg/dl ± SD | 1.9 ± 2.9 |
| AST, mg/dl ± SD | 23 ± 7 |
| ALT, mg/dl ± SD | 15.9 ± 8.4 |
| Cre, mg/dl ± SD | 0.5 ± 0.14 |
| Chronic infection with P. aeruginosa | 3 (9.1) |
| With treatment for pulmonary aspergillosis, n (%) | 4 (12.1) |
| Steroid use, n (%) | 0 (0) |
| Past MAC treatment | |
| CAM monotherapy, n (%) | 6 (18.2) |
| Two-drug regimen including CAM, n (%) | 4 (12.1) |
| MAC treatment more than 5 years, n (%) | 20 (60.6) |
