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Table 1 Results of meta-regression

From: Systematic review and meta-analysis of the diagnostic accuracy of ultrasonography for deep vein thrombosis

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