Table 4

Verdicts for each of six RCTs, indicating number of assessors rating 'Yes' (Y), 'Unclear' (U), or 'No' (N) per domain

Lewith, 2002 [26]


Domain

Yes

Uncertain

No

Majority


I (Rationale)

3

1

4

N


II (Principles)

7

1

0

Y


III (Practitioner)

6

1

1

Y


IV (Outcome measure)

6

2

0

Y


V (Sensitivity)

8

0

0

Y


VI (Follow-up)

5

1

2

Y


Overall majority verdict

5Y+1N


Kainz, 1996 [27]


Domain

Yes

Uncertain

No

Majority


I (Rationale)

6

2

0

Y


II (Principles)

7

1

0

Y


III (Practitioner)

5

3

0

Y


IV (Outcome measure)

8

0

0

Y


V (Sensitivity)

8

0

0

Y


VI (Follow-up)

4

4

0

U*


Overall majority verdict

5Y+1U


McCutcheon, 1996 [28]


Domain

Yes

Uncertain

No

Majority


I (Rationale)

2

4

2

U


II (Principles)

2

5

1

U


III (Practitioner)

1

4

3

U


IV (Outcome measure)

7

1

0

Y


V (Sensitivity)

4

3

1

Y


VI (Follow-up)

3

3

2

U*


Overall majority verdict

2Y+4U


Bell, 2004 [29]


Domain

Yes

Uncertain

No

Majority


I (Rationale)

8

0

0

Y


II (Principles)

8

0

0

Y


III (Practitioner)

8

0

0

Y


IV (Outcome measure)

8

0

0

Y


V (Sensitivity)

8

0

0

Y


VI (Follow-up)

8

0

0

Y


Overall majority verdict

6Y


Robertson, 2007 [30]


Domain

Yes

Uncertain

No

Majority


I (Rationale)

6

1

1

Y


II (Principles)

6

0

2

Y


III (Practitioner)

4

2

2

Y


IV (Outcome measure)

7

0

1

Y


V (Sensitivity)

7

1

0

Y


VI (Follow-up)

8

0

0

Y


Overall majority verdict

6Y


Adler, 2009 [31]


Domain

Yes

Uncertain

No

Majority


I (Rationale)

8

0

0

Y


II (Principles)

8

0

0

Y


III (Practitioner)

7

1

0

Y


IV (Outcome measure)

8

0

0

Y


V (Sensitivity)

8

0

0

Y


VI (Follow-up)

6

1

1

Y


Overall majority verdict

6Y


*: In the case of tied majority between the two verdicts Y and U, the lower-ranked of the two (U) was used to reflect the rating of that domain: see domain VI (Kainz, McCutcheon)

Mathie et al. BMC Medical Research Methodology 2012 12:49   doi:10.1186/1471-2288-12-49

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