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Table 3 Sensitivity and specificity of baseline clinicolaboratory findings for the diagnosis of GCA in 55 patients studied prospectively

From: Colour duplex sonography of temporal arteries before decision for biopsy: a prospective study in 55 patients with suspected giant cell arteritis

Findings

Sensitivity (%)

Specificity (%)

Elevated ESR

86

9

Fever

41

42

New onset of headache

64

70

Diffuse musculoskeletal pain

32

55

Jaw claudication

14

100

Temporal artery tenderness

36

91

Acute visual impairement

23

94

Unilateral halo sign

82

91

Bilateral halo sign

41

100

  1. ESR, erythrocyte sedimentation rate; GCA, giant cell arteritis.