Table 4 Overall mean scores over three time periods and by clinical fields
Time period | No. of RCTs | Dentistry | Neurology | Geriatrics | Overall score |
|---|---|---|---|---|---|
1990 to 2010 | 189 | 10.5 ± 4.2 | 11.4 ± 5.1 | 9.5 ± 4.8 | 10.7 ± 4.5 |
2011 to 2014 | 99 | 13.6 ± 5.0 | 11.6 ± 3.6 | 13.9 ± 5.9 | 13.3 ± 4.9 |
2015 to 2018 | 104 | 15.7 ± 4.9 | 13.4 ± 4.6 | 13.0 ± 7.3 | 15.3 ± 5.1 |