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Table 4 Summary of the GRADE assessment

From: Synergistic Effect of Increased Total Protein Intake and Strength Training on Muscle Strength: A Dose-Response Meta-analysis of Randomized Controlled Trials

  Study design Risk of bias Inconsistency Indirectness Imprecision Publication bias Absolute effect (95%CI) (%) Quality
With RT RCT Not serious Not serious Not serious Not serious Not serious 2.01 (1.09, 2.93) High
Without RT RCT Not serious Not serious Not serious Not serious Serious 0.13 (− 1.53, 1.79) Moderate
All RCT Not serious Not serious Not serious Not serious Not serious 1.40 (0.55, 2.24) High
  1. RT resistance training