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Table 2b Four main quality criteria of articles from literature review on effect of SMT on pain – maximum score 8 points

From: The effect of spinal manipulative therapy on experimentally induced pain: a systematic literature review

Article Is the assessment blinded? Is the randomization procedure mentioned? Study subjects: Were losses and exclusions reported? Total points
  Yes = 2 pts Points Yes = 2 pts Points Naive to tx and blind Points Yes = 2 pts Points Max = 8 Min = 0
[31] Yes 2 Yes 2 Blind 1 Yes 2 7
[28] Yes 2 Yes 2 Naive and blind 2 No 0 6
[44] No 0 Yes 2 Naive and blind 2 Yes 2 6
[43] No 0 Yes 2 Naive and blind 2 Yes 2 6
[40] Yes 2 Yes 2 Naive and blind 2 No 0 6
[21] Yes 2 Yes 2 Naive and blind 2 No 0 6
[39] Yes 2 Yes 2 Blind 1 Yes 2 6
[42] Yes 2 Yes 2 Blind 1 No 0 5
[29] Yes 2 Yes 2 Naive 1 No 0 5
[38] Yes 2 Yes 2 Blind 1 No 0 5
[20] Yes 2 Yes 2 Blind 1 No 0 5
[34] Yes 2 Yes 2 Naive 1 No 0 5
[35] Yes 2 Yes 2 Naive 1 No 0 5
[37] Yes 2 Yes 2 Nothing 0 No 0 4
[18] No 0 Yes 2 Nothing 0 Yes 2 4
[32] Yes 2 No 0 Naive and blind 2 No 0 4
[33] Yes 2 No 0 Naive and blind 2 No 0 4
[41] Yes 2 Yes 2 Nothing 0 No 0 4
[30] Yes 2 No 0 Blind to sham laser 1 No 0 3
[19] Yes 2 No 0 Blind 1 No 0 3
[36] No 0 Yes 2 Nothing 0 No 0 2
[23] No 0 No 0 Nothing 0 No 0 0
  1. Articles scoring ≤ 4/8 pts.