Table 4.2.
Number of Included Studies, Not Using STAR Data
| Reduction due to | |||||
| Country | Total | Missing data | Too high risk of bias | Used same data sets | Used in data synthesis |
| Australia | 1 | ‐ | 1 | ‐ | 0 |
| Bolivia | 1 | ‐ | 1 | ‐ | 0 |
| Canada | 1 | 1 | ‐ | ‐ | 0 |
| Columbia | 1 | ‐ | 1 | ‐ | 0 |
| Cypres | 1 | ‐ | 1 | ‐ | 0 |
| Denmark | 1 | ‐ | 1 | ‐ | 0 |
| France | 3 | 1 | ‐ | ‐ | 2 |
| Germany | 1 | 1 | ‐ | ‐ | 0 |
| Greece | 1 | ‐ | 1 | ‐ | 0 |
| Hong Kong | 1 | ‐ | 1 | ‐ | 0 |
| Israel | 3 | 1 | 2 | ‐ | 0 |
| Italy | 1 | ‐ | 1 | ‐ | 0 |
| Japan | 3 | ‐ | 3 | ‐ | 0 |
| Lesotho | 1 | ‐ | 1 | ‐ | 0 |
| Multiple 1 | 8 | ‐ | 8 | ‐ | 0 |
| New Zealand | 1 | ‐ | 1 | ‐ | 0 |
| NL | 5 | ‐ | 4 | ‐ | 1 |
| Norway | 2 | ‐ | 2 | ‐ | 0 |
| Poland | 1 | ‐ | 1 | ‐ | 0 |
| Sri Lanka | 1 | ‐ | 1 | ‐ | 0 |
| Sweden | 2 | ‐ | 2 | ‐ | 0 |
| UK | 5 | 2 | 3 | ‐ | 0 |
| USA | 37 | 12 | 22 | ‐ | 3 |
| Total | 82 | 18 | 58 | 0 | 6 |
Note: The reduction due to too high risk of bias preceded the reduction due to using same data set.
1
The countries included in these eight studies are: Australia, Belgium, Canada, Croatia, Czech Republic, Denmark, England, France, Germany, Greece, Hong Kong, Hungary, Iceland, Ireland, Italy, Japan, Korea, Lithuania, Malta, Norway, Portugal, Romania, Scotland, Singapore, Slovak Republic, Slovenia, Spain, Sweden, the Netherlands, USA, Chinese Taipei, Scotland and Switzerland.