Table 7.
Results of quality assessment of trials and datasets according to criteria defined in Table 1
| Study | DS | Selection bias* | Detection/performance bias* | Attrition bias* | Run-in phase* | Trial outcome* | |
|---|---|---|---|---|---|---|---|
| Randomisation | Baseline data | Blinding/masking | LtF | ||||
| Milgrom et al.20 | 01 | D | 0 | B | B | 0 | A |
| 02 | D | 0 | B | A | 0 | A | |
| Mäkinen et al.21 | 03 | 0 | 0 | B | B | A | A |
| Mäkinen et al.22 | 04 | 0 | C | B | A | A | A |
| Mäkinen et al.26 | 07 | 0 | C | B | 0 | A | A |
| 08 | 0 | C | B | 0 | A | A | |
| 09 | 0 | C | B | 0 | A | A | |
| 10 | 0 | C | B | 0 | A | A | |
| Mäkinen et al.26 | 11 | 0 | C | B | 0 | A | A |
| 12 | 0 | C | B | 0 | A | A | |
| Mäkinen et al.23 | 05 | 0 | C | B | 0 | A | A |
| 06 | 0 | C | B | 0 | A | A | |
| Hujoel et al.27 | 13 | 0 | C | B | 0 | A | A |
| 14 | 0 | C | B | 0 | A | A | |
| Machiulskiene et al.24 | 15 | 0 | C | B | A | A | A |
| 16 | 0 | C | B | A | A | A | |
| 17 | 0 | C | B | B | A | A | |
| Mäkinen et al.25 | 18 | 0 | A | B | A | A | A |
*
A–D and 0, see criteria defined in Table 1.
DS, dataset; LtF, lost to follow-up.