Table 1.
Clinical Characteristics of the Study Population
| Characteristics | pNTM Cases (n = 25) | Controls (n = 27) |
|---|---|---|
| Age, yr | 66.9 (±10.3) | 65.4 (±7.5) |
| Male sex, n (%) | 9 (36) | 10 (37) |
| Ex- or current smoker, n (%) | 14 (56) | 14 (52) |
| Underlying diagnosis, n (%) | ||
| COPD | 7 (28) | 7 (26) |
| Bronchiectasis | 11 (44) | 20 (74) |
| No underlying lung disease | 7 (28) | 0 |
| FEV1 % predicted | 48.64 (±31.42) | 71.27 (±25.98) |
| FVC % predicted | 73.78 (±39.2) | 102.25 (±20.87) |
| Prophylactic antibiotics, n (%) | 6 (24) | 8 (29) |
| Systemic corticosteroids, n (%) | 3 (12) | 2 (7) |
| Inhaled corticosteroids, n (%) | 12 (48) | 17 (63) |
| NTM treatment, n (%) | 9 (36) | — |
| NTM species, n (%) | ||
| MAC | 14 (56) | — |
| M. abscessus | 4 (16) | — |
| M. xenopi | 3 (12) | — |
| M. kansasii | 2 (8) | — |
| M. malmoense | 1 (4) | — |
| M. fortuitum | 1 (4) | — |
Definition of abbreviations: COPD = chronic obstructive pulmonary disease; FEV1 = forced expiratory volume in 1 second; FVC = forced vital capacity; M. = Mycobacterium; MAC = M. avium complex; NTM = nontuberculous mycobacterial; pNTM = pulmonary nontuberculous mycobacterial.
Continuous variables are stated as means (±SD).