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Success rate of randomized controlled trials in achieving a reduction of glycated hemoglobin A1c across the 3 intervention categories.
| Intervention category | RCTsa (n=23), n (%) | Significant resultsb, n/N (%) |
| High intensity | 5 (22) | 2/5 (40) |
| Medium intensity | 14 (61) | 8/14 (57) |
| Low intensity | 4 (17) | 2/4 (50) |
aRCT: randomized controlled trial.
bNumber of studies achieving statistically significant results in comparative reduction of HbA1c.
