[Nontuberculous mycobacteriosis (NTM) in Japan--epidemiologic and clinical study].

The epidemiologic study for NTM was conducted among 211 national, provincial and private sanatoriums in Japan. The case cards of patients with NTM disease from 97 hospitals were collected by questionary method. The total number of NTM patients newly admitted in these hospitals were 2,873 in 7 years from 1985 to 1991, and the culture positive tuberculosis patients were 22,836 cases in the same period.