Table 4. Comparison of differences in COVID-19 Testing Index between countries and states with different testing and tracing policies, geographical settings, forms of government and economic development status (n = 147).
| Variable | n (%) | CovTI (95% CI) | Test statistica | p-value |
|---|---|---|---|---|
| Testing policy | 8.4 | <0.0001 | ||
| No testing policy | 6 (4.1) | 29.7 (17.6–41.9) | ||
| Limited testing | 60 (40.8) | 54.0 (49.0–59.0) | ||
| Symptomatic testing | 53 (36.1) | 59.6 (54.7–64.5) | ||
| Open public testing | 28 (19.1) | 66.9 (61.0–72.8) | ||
| Contact tracing policy | 9.8 | 0.0001 | ||
| No contact tracing | 18 (12.2) | 43.9 (35.4–52.5) | ||
| Limited contact tracing | 58 (39.5) | 54.4 (49.4–59.3) | ||
| Extensive contact tracing | 71 (48.3) | 63.5 (59.3–67.7) | ||
| Geographical setting | 2.94 | 0.004 | ||
| Island or island-like | 23 (15.7) | 68.0 (59.7–76.3) | ||
| Non-island | 124 (84.4) | 55.5 (52.5–58.8) | ||
| Form of government | 1.12 | 0.26 | ||
| Unitary state | 123 (83.7) | 58.3 (54.8–61.7) | ||
| Federation | 24 (16.3) | 53.5 (45.4–61.5) | ||
| Economic development status | 0.08 | 0.94 | ||
| OECD Member | 36 (24.5) | 57.3 (50.6–63.9) | ||
| Non-OECD Member | 111 (75.5) | 57.6 (54.0–61.2) |
a t-statistic from two-way two-sample t-test with equal variance or F-statistic from one-way ANOVA.