Table 1.

Annual trend of number of national and regional operations for pulmonary nontuberculous mycobacterial disease

Region	2008 [5]	2009 [6]	2010 [7]	2011 [8]	2012 [9]
Hokkaido	12	18	26	16	13
Tohoku	16	19	37	28	39
Kanto	54	62	96	72	86
Tokyo	33	57	53	72	90
Chubu	40	58	69	83	78
Kinki	72	45	68	67	95
Chugoku/Shikoku	32	46	60	52	75
Kyushu	33	18	43	50	38
Nation (total)	292	323	452	440	514