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Table 1 The modified Jaded Scale

From: Effects of transversus abdominis plane block versus quadratus lumborum block on postoperative analgesia: a meta-analysis of randomized controlled trials

Classification Score Description
Randomization
 Inappropriate 0 Semi-randomized or quasi-randomized trials
 Unclear 1 Randomized trials without describing methods for generating random sequences
 Appropriate 2 Random sequences produced by a computer or a random number table
Allocation concealment
 Inappropriate 0 Regular grouping
 Unclear 1 Only use of a random number table or other random assignment scheme
 Appropriate 2 A method for assigning sequences without prediction
Blinding
 Inappropriate 0 Use of double blindness without an appropriate method
 Unclear 1 Only mention of double blindness
 Appropriate 2 A description of the specific and appropriate method of double blindness
Withdrawals or dropouts
 No 0 No description of withdrawal or dropouts
 Yes 1 A description of withdrawal or dropouts