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Table 2. Outcome by study size: proportion of studies with statistically positive results (positive studies)

Outcome > 25 per treatment group < 25 per treatment group
Number of Studies Number of Positive Studies (%) Number of Studies Number of Positive Studies (%)
Glycemic control 28 14 (50) 20 8 (40)
Risk factor reduction Weight 20 4 (20) 10 2 (20)
Cholesterol 16 5 (31) 5 3 (60)
Blood pressure 9 3 (33) - -

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