A review on tuberculosis prevalence and its control programme in Kanto Region was made based on the routine annual statistics of tuberculosis registry and the results of sampling survey of tubercu losis registry in 1978. The region consists of metropolis Tokyo, 2 municipalities and 8 prefectures. The results are summarized as follows:
1) The prevalence of tuberculosis in the region was, in general, lower than the national average. Tochigi, Ibaragi, Yamanashi and Yokohama were areas in which the prevalence was relatively high within the region.
2) Most of newly registered tuberculosis patients were detected by symptomatic visit to physi cians. The time interval from the appearance of symptoms to the first visit to physicians was slightly longer in the region except Kawasaki than the national average.
3) The rate of bacteriological examination among newly registered patients was 83% in whole Japan, and the rates in Tochigi and Nagano were lower than the national average.
4) No information on the activity of patients within one year was available in 21 % of all regis tered persons in whole Japan, and the rate was higher than this figure in Tochigi, Saitama, Chiba and Ibaragi.
5) The average duration of treatment as well as of registration was longer in Tochigi, Ibaragi and Nagano than those of whole Japan. The use of rifampicin was less in Ibaragi, Tochigi and Chiba. The duration of treatment has to be shortened through the active introduction of intensive regimen of chemotherapy containing isoniazid and rifampicin.
6) The ratio of tuberculosis death to pulmonary cancer death might be used as an index to make the overall evaluation of tuberculosis control programme, as both diseases are highly prevalent among male of higher age, and the reduction of tuberculosis problem could be accelerated through the active implementation of the control programme, while the control of lung cancer is still rather difficult. Tuberculosis death was 44% of pulmonary cancer death, and the ratio in Ibaragi (28), Nagano (30), Gumma and Chiba (33 each), Kawasaki (37) and Yokohama (38) was lower, the ratio. in Yamanashi and Tokyo (43 each), Saitama (44) and Kanagawa (45) was nearly similar, and the ratio in Tochigi (56) was much higher than the national average.
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