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Table 1 Percentage agreement for the results of a trial to be predicted by the meta-analysed results of the remaining studies in the Cochrane reviews

From: Which is more generalizable, powerful and interpretable in meta-analyses, mean difference or standardized mean difference?

   Random-effects model Fixed-effect model
No. of reviews MD SMD P-value, sign test MD SMD P-value, sign test
All reviews 1068 44.5% 46.7% <0.0001 27.8% 31.9% <0.0001
I-squared of both MD and SMD <60% 560 50.0% 52.9% 0.0004 44.0% 47.9% <0.0001
I-squared of both MD and SMD <30% 357 55.3% 59.8% <0.0001 53.0% 57.8% <0.0001
  1. The average percentages are weighted by the number of included RCTs.