Table 5.
Mean Cochrane score for the RCTs in the two periods.
| Period | |||||
|---|---|---|---|---|---|
| 2000-2004 | 2004-2009 | ||||
| Mean | SD | Mean | SD | P value | |
| Cochrane score | 14.07 | 3.62 | 13.4 | 4.6 | 0.63 |
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