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Table 3 Quality of key methodological items (n = 26)

From: Assessing the quality of reports about randomized controlled trials of scalp acupuncture treatment for vascular dementia

Item

Criteria

Description

Number of positive trialsa

%

Cohen’s к coefficient

95% CI

8

Randomization

Description of the method used to generate the random sequence

14

54

0.68

0.39 to 0.97

9 and 10

Allocation concealment and implementation

Description of the method used to implement the random allocation sequence assuring the concealment until interventions are assigned

3

12

0.84

0.52 to 1.15

11

Blinding

Whether or not participants, those administering the interventions, or those assessing the outcomes were blinded to group assignment

3

12

1.00

1.00

15

Baseline data

An outline of baseline demographic and clinical characteristics of each group

11

42

0.92

0.77 to 1.07

16

Intent-to-treat analysis

No. of participants in each group included in each analysis and whether it was done by “intention to treat”

3

12

0.71

0.32 to 1.10

  1. aPositive trials, the information for each item was stated so 1 point was given