Table 1

Results of meta-regression

Variable

Sensitivity

Specificity


Setting for recruitment

0.14

0.43

DVT prevalence

<0.001

0.11

Proportion of proximal DVT

0.04

0.14

Mean age

0.36

0.17

Proportion of males

0.66

0.24

Consecutive recruitment

0.78

0.55

Prospective study

0.26

0.24

Radiologist interpreted

0.064

0.52

Sonographer interpreted

0.52

0.44

Ultrasound performed blind to reference standard

0.44

0.52

Reference standard performed blind to ultrasound

0.59

0.56

Previous DVT excluded

0.92

0.039

Date of publication

0.057

0.84


p-value when included in random effect weighted meta-regression

Goodacre et al. BMC Medical Imaging 2005 5:6   doi:10.1186/1471-2342-5-6

Open Data