Table 4. Odds ratios comparing the UK and Ireland with other regions based on the proportion of higher- compared with lower-quality evidence.
| Comparison region | Higher-/lower-quality articles (n) | Odds ratio | 95% confidence interval | p-value | |
|---|---|---|---|---|---|
| Lower | Higher | ||||
| UK and Ireland | 73/473 | ||||
| Compared with: | |||||
| Europe | 265/1241 | 0.723 | 0.546 | 0.956 | 0.022 |
| North America | 249/2526 | 1.566 | 1.185 | 2.069 | 0.003 |
| Japan | 25/410 | 2.531 | 1.577 | 4.062 | < 0.001 |
| Rest of the world | 215/929 | 0.667 | 0.500 | 0.889 | 0.003 |