TABLE 1.

Characteristics of lung infections by nontuberculous mycobacteria (NTM), overall and in each decade

	Total	1st decade#	2nd decade¶	p-value
Patients with NTM lung disease	327	257 (78.6%)	70 (21.4%)	<0.001
NTM species
Mycobacterium kansasii	274 (83.8%)	236 (91.6%)	38 (54.3%)	<0.001
Mycobacterium avium complex	43 (13.1%)	15 (5.8%)	28 (40.0%)
Others+	10 (3.1%)	6 (1.8%)	4 (1.2%)
Age years mean	56.8±18	54±18.6	61±16.9	0.010
Male	71.2%	75.2%	57.1%	0.003

^#: 1997–2006; ^¶: 2007–2016; ⁺: Mycobacterium celatum, Mycobacterium abscessus and Mycobacterium xenopi.