Table 2

Derived data from meta-analyses examples

Meta-analysis

Range of weights wi (% weights) in the fixed-effect model

Inconsistency

(I2)%

Diversity

(D2)%

(D2 - I2)%

A priori relative risk reduction %

(RRR)

Unadjusted information size

(SS)

Heterogeneity-adjusted

information size

(HIS)

Diversity-adjusted information size

(DIS)


Afshari and others

2007 [16]

0.2-281

(0.04-80%)

0.0

0.0

0.0

10

3,317

3,317

3,317

Al-Inany and others,

2006 [17]

0.2-3.9

(1-18%)

7.2

13.9

6.7

25

3,516

3,789

4,083

Soll and others,

1997 [18]

3.6-22.2

(6.2-38.1%)

22.9

37.3

14.3

60

193

250

307

Wetterslev and Juhl,

2006 [19]

0.3-10.4

(1-42%)

13.4

40.5

27.1

20

8,421

9,726

14,164

Bury and Tudehope,

2000 [20]

1.5 - 9.6

(7-38%)

40.2

57.7

17.5

45

440

736

1,039

Li and others,

2007 [21]

0.24-565.1

(0.02-42%)

61.9

89.9

28.0

10

31,094

81,466

306,276

Meyhoff and others,

2008 [22]

1.3-15.2

(4-47%)

74.2

79.4

5.2

30

1,699

6,581

8,239


Wetterslev et al. BMC Medical Research Methodology 2009 9:86   doi:10.1186/1471-2288-9-86

Open Data