Characteristics of districts selected for the study
| District | Region | Hospitals available in the region (n) | Urban/rural | Population (region, 2020 projection, Tanzania census) | Population (district, 2017 projection, Tanzania census) | Area (km2) | Population density (people per km2) |
| Dodoma MC | Dodoma | 15 | Urban | 2 647 410 | 456 035 | 2611 | 175 |
| Chemba DC | Dodoma | 15 | Rural | 2 647 410 | 261 567 | 7299 | 36 |
| Kigoma Ujiji MC | Kigoma | 12 | Urban | 2 800 919 | 242 917 | 93 | 2615 |
| Kakonko DC | Kigoma | 12 | Rural | 2 800 919 | 188 909 | 2204 | 86 |
| Ilala MC | Dar es Salaam | 65 | Urban | 5 401 814 | 1 616 901 | 369 | 4383 |
| Kigamboni MC | Dar es Salaam | 65 | Rural | 5 401 814 | 215 830 | 69 490 | 3087 |
| Mbeya CC | Mbeya | 21 | Urban | 2 204 543 | 435 072 | 252 | 1724 |
| Rungwe DC | Mbeya | 21 | Rural | 2 204 543 | 274 189 | 2154 | 127 |
CC, City Council; DC, District Council; MC, Municipal Council.