Table 1. Poisson regression analysis of the association between prevalence rates of nontuberculous mycobacteria isolation and pulmonary disease, Barcelona-South Health Region, Catalonia, Spain, 1994–2014*.

Patient age group, sex, and year	Isolation				Pulmonary disease
	No. patients	aRR (95% CI)	p value		No. patients	aRR (95% CI)	p value
18–49 y	176				89
Sex
F	29	1.0	<0.0001		12	1.0	<0.0001
M	147	5.10 (3.20–8.12)			77	6.46 (3.04–13.89)
Year of isolation	176	0.95 (0.93–0.97)	<0.0001		89	0.92 (0.88–0.95)	<0.0001
50–65 y	209				89
Sex
F	49	1.0	<0.0001		20	1.0	<0.0001
M	160	3.18 (2.20–4.58)			69	3.38 (2.01–5.24)
Year of isolation	209	1.02 (0.99–1.04)	0.2		89	0.99 (0.95–1.04)	0.7
>65 y	295				79
Sex
F	73	1.0	<0.0001		25	1.0	0.001
M	222	3.09 (2.39–3.93)			54	2.15 (1.35–3.41)
Year of isolation	295	1.11 (1.09–1.13)	<0.0001		79	1.0 (1.02–1.12)	0.004

*aRR, adjusted relative risk.