Genotyping results of paired clinical isolates from patients with recurrent Mycobacterium avium complex (MAC) lung disease#
| Total | Reinfection¶ | Relapse¶ | p-value | |
| Subjects | 27 (100) | 20 (74) | 7 (26) | |
| Type of disease | 0.091 | |||
| NB | 22 (81) | 18 (82) | 4 (18) | |
| Noncavitary NB | 17 | 14 | 3 | |
| Cavitary NB | 5 | 4 | 1 | |
| Fibrocavitary form | 5 (19) | 2 (40) | 3 (60) | |
| Aetiology | 0.091 | |||
| M. avium | 12 (44) | 11 (92) | 1 (8) | |
| M. intracellulare | 15 (56) | 9 (60) | 6 (40) | |
| Time interval between treatment completion and recurrence months | 10.6 (5.5–18.3) | 13.0 (6.0–23.7) | 6.0 (4.8–8.5) | 0.040 |
Data are presented as n (%), n or median (interquartile range), unless otherwise stated. NB: nodular bronchiectatic form. #: “recurrent MAC lung disease” only includes cases where MAC lung disease redeveloped due to the same species; ¶: repetitive sequence-based PCR profiles indicated that genotypes differed from the original isolates (reinfection) or were identical to the initial genotype (relapse).