Table 3.

Baseline factors associated with persistent radiographic findings suggestive of nontuberculous mycobacteria in patients with radiographic evaluations at least 2 years (n = 93) or at least 5 years (n = 65) after initial isolation

Baseline Patient Characteristics	Patients with Scans (n)	Findings at ≥2 Yr	Nodules, Cavitation, or Infiltrate vs. No Findings at ≥2 Yr		Patients with Scans (n)	Findings at ≥5 Yr	Nodules, Cavitation, or Infiltrate vs. No Findings at ≥5 Yr
			OR	AOR			OR	AOR
Overall	93				65
Met case criteria*	61	54 (88.5)	3.5 (1.2–10.4)	2.0 (0.6–6.8)	44	36 (81.8)	1.8 (0.5–6.1)	1.1 (0.2–5.2)
Did not meet case criteria	32	22 (68.8)			21	15 (71.4)
Treatment initiated	45	42 (93.3)	5.8 (1.5–21.7)	3.1 (0.7–15.0)	34	29 (85.3)	2.4 (0.7–8.1)	1.4 (0.3–6.9)
No treatment	48	34 (70.8)			31	22 (71.0)
Age ≥67 yr	48	37 (77.1)	0.5 (0.2–1.5)	0.4 (0.1–1.3)	32	25 (78.1)	1.0 (0.3–3.1)	0.9 (0.3–3.0)
Age <67 yr	45	39 (86.7)			33	26 (78.8)
Female sex	64	56 (87.5)	3.2 (1.1–9.3)	2.1 (0.5–8.4)	53	44 (83.0)	3.5 (0.9–13.5)	2.4 (0.4–13.3)
Male sex	29	20 (69.0)			12	7 (58.3)
COPD	22	18 (81.8)	1.0 (0.3–3.5)	1.4 (0.3–6.2)	13	9 (69.2)	0.5 (0.1–2.1)	0.7 (0.2–3.4)
No COPD	71	58 (81.7)			52	42 (80.8)
Bronchiectasis†	39	35 (89.7)	2.8 (0.8–9.3)	1.6 (0.3–7.4)	29	25 (86.2)	2.4 (0.7–8.7)	1.4 (0.3–6.7)
No bronchiectasis	54	41 (75.9)			36	26 (72.2)
Any steroid use‡	20	16 (80.0)	0.9 (0.2–3.0)	1.0 (0.2–4.1)	14	11 (78.6)	1.0 (0.2–4.3)	1.2 (0.2–6.0)
No steroid use	73	60 (82.2)			51	40 (78.4)

Definition of abbreviations: AOR = adjusted odds ratio; COPD = chronic obstructive pulmonary disease; OR = odds ratio.

Numbers are count (percent) except as noted. Boldface type indicates P < 0.05.

^*American Thoracic Society/Infectious Diseases Society of America pulmonary nontuberculous mycobacteria disease criteria (4).

^†Bronchiectasis noted on computed tomographic scan report or physician diagnosis recorded.

^‡Use of inhaled corticosteroids or oral prednisone.