Survival rates for open (smear-positive) and closed (smear-negative, diagnosed in various ways including chest X-ray) pulmonary tuberculosis.

*As reported by Berg [115];†In this re-analysis, 1464 of the total of 1787 tuberculosis patients were included, for part of whom 5- and 10-year survival rates could be calculated;§Based on 975 cases diagnosed between 1920 and 1930;‡These are 534 patients who were smear-positive at the time of discharge from sanatorium and also originally diagnosed as smear-positive;¶We only used the period (notified cases between 1928 and 1934) for which the author considered his material to be least biased;&These 597 patients were once smear-positive but had become smear-negative at the time of discharge from sanatorium;#4- instead of 5-year survival;%These are 2484 patients who were consistently smear-negative but it is unclear how many were culture-positive.