Table 2. Overview of studies included in our review*.
| Study | Design | Country | Type of Subjects | Period patients identified | N |
| Hartley et al. [118] **,† | Cohort | UK | Cases treated at Brompton Hospital with open tuberculosis | 1905–1914 | 3,326 |
| Sinding-Larsen [119] | Cohort | Denmark | Sanatorium patients with open tuberculosis | 1907–1931 | 1,114 |
| Trail and Stockman [117] ** | Cohort | UK | Sanatorium patients with bacillary and abacillary tuberculosis | 1911–1928 | 2,625 |
| Backer [120] | Cohort | Norway | Dispensary material of patients with bacillary and abacillary tuberculosis | 1911–1930 | 2,312 |
| Krebs [121] & | Cohort | Switzerland | Sanatorium patients with open and closed tuberculosis | 1912–1927 | 1,787 |
| Tattersall [123], [124] | Cohort | UK | Dispensary material from smear-positive patients | 1914–1940 | 1,192 |
| Magnusson [125] | Cohort | Iceland | Sanatorium patients with open and closed tuberculosis | 1916–1935 | 792 examined, 379 with open and 413 with closed tuberculosis |
| Rutledge and Crouch [19] | Cohort | USA | Discharged sanatorium patients with bacillary and abacillary tuberculosis | Not stated, prior to 1919 | 1,654 |
| Münchbach [126] | Cohort | Germany | Sanatorium patients, with open tuberculosis | 1920–1927 | 3,966 |
| Braeuning and Neisen [127], [128] | Cohort | Poland (then Germany) | Dispensary material of bacillary/open tuberculosis patients | 1920–1921, 1927 | 951 |
| Griep [129] | Retrospective cohort | The Netherlands | Notified cases with open tuberculosis | 1920–1938 | 1,846 |
| Baart de la Faille [130] ‡ | Cohort | The Netherlands | Sanatorium patients, with open and closed tuberculosis | 1922–1935 | 3,615 (1,131 smear-positive at least once; 534 smear-positive at discharge) |
| Buhl and Nyboe [131] | Cohort | Denmark | Notified cases with bacillary tuberculosis | (here) 1925–1929 | 314 |
| Lindhardt [132] | Cohort | Denmark | Notified cases | 1925–1934 | 5,432 smear-positive cases |
| Berg [115] | Cohort(s) | Sweden | All diagnosed open tuberculosis patients | 1928-1934† | 2,042 |
| Thompson [133] | Cohort | UK | All diagnosed smear-positive patients | 1928–1938 | 406 |
| National Tuberculosis Institute (NTI), Bangalore [29] | Successive waves of surveys, prevalence and incidence | India | Active case-finding, smear-positive and/or culture-positive tuberculosis | 1961–1968 | 166,140 examined, 627 with tuberculosis |
| Pamra et al. [113] | Successive waves of surveys, prevalence and incidence | India | Active case-finding, smear-positive and/or culture-positive tuberculosis | 1962–1970 | 21,344–24,808¶ examined, 142 with tuberculosis |
| Drolet [116] | Notification and mortality | USA and UK | Notified cases with pulmonary tuberculosis (not further specified) | 1915–1935 | 299,244 (parts of USA), 323,870 (UK) |
| Braeuning [134] | Notification and mortality | Poland (then Germany) | Notified cases with open pulmonary tuberculosis and deaths from tuberculosis | 1925–1929 | 264,500 (annual average) |
| Framingham Com-munity Health & Tuberculosis Demon-stration [20], [135]–[137] | Community study; prevalence and mortality | USA | Community active and passive case finding of tuberculosis (not specified) | 1916–1925 | Not precisely given |
*Abbreviations used in this table: UK, United Kingdom; USA, United States of America; culture-positive, Löwenstein-Jensen medium culture-positive.
**as reported by Berg [115], since original paper was not available.
only the years of which least biased data (according to Berg's [115] opinion) were available are included here.
Smear-negative tuberculosis was defined as growth of mycobacteria on Malachite-green culture whereas no bacilli were identified in the patient's sputum.
Data re-analyzed by Fürth [122], who included the 1464 patients (995 with open and 469 with closed tuberculosis) who were followed for at least 5 years after discharge.
Depending on survey wave (first survey had 21,344 participants, fourth and last had 24,808 participants).