Table 1

Results

Comparison

Recall

Precision


Number of Studies

Number of Comparisons

Median (Range)

Number of Studies

Number of Comparisons

Median (Range)


MEDLINE vs. Handsearching

23

41 22*

53 (7,97) 58 (7,97)

12

23 11

35 (0.03,99) 31 (0.03,78)

MEDLINE vs. MEDLINE + Handsearching

13

16 12*

70 (18,90) 75 (18,90)

6

8 5

49 (13,83) 40 (13,83)

MEDLINE vs. Reference Standard

13

24 18*

59 (17,98) 58 (17,98)

8

17 11

27 (1,91) 30 (1,91)

EMBASE vs. Handsearching

2

2

(42,88)

2

2

(9,17)

EMBASE vs. Reference Standard

9

14 13*

72 (13,100) 68 (13,100)

5

8 7

28 (0,48) 26 (0,48)

PsycINFO vs. Handsearching

2

2

(68,70)

2

2

(8,9)

PsycINFO vs. Reference Standard

2

4 2*

50 (0,65) (38,61)

2

3 2

39 (36,47) (36,47)

Trial Registries vs. Reference Standard

2

4

89 (84,95)

1

2

(96,97)

CINAHL vs. Reference Standard

2

2

(0,1)

1

1

0

Biosis vs. Reference Standard

1

1

47

1

1

1

CancerLIT vs. Handsearching

1

1

92

0

--

--

Cabnar vs. Reference Standard

1

1

47

1

1

2

CENTRAL vs. Reference Standard

1

1

78

0

--

--

Chirolars vs. Reference Standard

1

1

49

0

--

--

HealthStar vs. Reference Standard

1

1

53

1

1

1

Internet vs. Reference Standard

1

1

24

1

1

17

SciCitIndex vs. Reference Standard

1

1

61

0

--

--


* excludes duplicate topics

excludes Index searches

Crumley et al. BMC Medical Research Methodology 2005 5:24   doi:10.1186/1471-2288-5-24

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