Table 2 True positives (TP), false positives (FP), true negatives (TN), false negatives (FN), sensitivity and specificity for all studies with 95% confidence intervals.

Aragona 2005

3171

1073

1695

98

305

0.92 [0.90, 0.93]

0.15 [0.14, 0.17]

Beneduce 2007

101

42

31

8

20

0.84 [0.71, 0.93]

0.39 [0.26, 0.54]

Ciatto 2004

410

167

171

18

54

0.90 [0.85, 0.94]

0.24 [0.19, 0.30]

Espana 1998

170

53

96

15

6

0.78 [0.66, 0.87]

0.06 [0.02, 0.12]

Fischer 2005

178

61

76

13

28

0.82 [0.72, 0.90]

0.27 [0.19, 0.37]

Hofer 2000

184

67

81

7

33

0.91 [0.81, 0.96]

0.29 [0.21, 0.38]

McArdle 2004

171

93

52

10

16

0.90 [0.83, 0.95]

0.24 [0.14, 0.35]

Ryden 2007

361

180

146

8

27

0.96 [0.92, 0.98]

0.16 [0.11, 0.22]

Unal 2000

59

30

10

0

19

1.00 [0.88, 1.00]

0.66 [0.46, 0.82]

Wymenga 2000

716

253

228

68

15

0.79 [0.74, 0.83]

0.06 [0.03, 0.10]