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Table 3 Data on 636 patients with isolated headache

From: D-dimer for the exclusion of cerebral venous thrombosis: a meta-analysis of low risk patients with isolated headache

 

CVT

 

No CVT

 
 

D-dimer raised

D-dimer normal

D-dimer raised

D-dimer normal

Tardy et al., 2002

6

0

0

17

Kosinski et al., 2004

20

0

27

244

Meng et al. 2014

15

1

2

155

Alons et al., 2015

3

0

63

83

Total

44

1

92

499