Medians and IQRs of the dependent and independent variables used for the models stratified by the global burden of disease subregions
| Median (IQR) | High income; n=31 | Central Europe; n=22 | Sub-Sahara; n=18 | Latin America; n=16 | Asia and Oceania*; n=12 | Middle East; n=10 |
| TC2020 | 47 000.00 (32 000.00) | 25 000.00 (23 000.00) | 1800.00 (1900.00) | 6500.00 (6600.00) | 4500.00 (5600.00) | 30 000.00 (1900.00) |
| TC2021 | 150 000.00 (120 000.00) | 70 000.00 (110 000.00) | 3700.00 (9200.00) | 18 000.00 (17 000.00) | 22 000.00 (30 000.00) | 81 000.00 (9200.00) |
| Vaccination | 78 000.00 (7600.00) | 49 000.00 (27 000.00) | 17 000.00 (19 000.00) | 66 000.00 (27 000.00) | 67 000.00 (31 000.00) | 68 000.00 (19 000.00) |
| Urban population | 85.00 (11.00) | 62.00 (12.00) | 43.00 (23.00) | 58.00 (6.40) | 73.00 (20.00) | 85.00 (23.00) |
| Current health expenditure | 9.30 (1.60) | 6.60 (1.50) | 5.20 (2.10) | 6.80 (1.20) | 3.80 (1.40) | 5.00 (2.10) |
| Employment-to-population ratio | 62.00 (4.70) | 64.00 (7.70) | 61.00 (10.00) | 54.00 (20.00) | ||
| Vulnerable employment | 11.00 (4.60) | 14.00 (16.00) | 68.00 (24.00) | 37.00 (18.00) | 51.00 (23.00) | 6.10 (24.00) |
| Population density | 2.10 (1.00) | 1.90 (0.35) | 1.90 (0.55) | 1.80 (0.84) | 2.40 (0.48) | 2.00 (0.55) |
| Gender inequality index | 0.08 (0.05) | 0.18 (0.11) | 0.53 (0.02) | 0.40 (0.06) | 0.42 (0.11) | 0.28 (0.02) |
| Gini index | 33.00 (5.30) | 33.00 (7.80) | 43.00 (9.40) | 45.00 (3.40) | 36.00 (5.60) | 37.00 (9.40) |
*As only four South Asian countries had sufficient data and considering that global burden of disease regions are defined based on epidemiological similarity and geographical closeness, we grouped South Asia and Southeast Asia, East Asia and Oceania together for all the analyses and denoted this region as Asia and Oceania.
IQR, interquartile range; TC, testing capacity.