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Table 3 Comparison of US and NCS: statistical values

From: Effectiveness of ultrasonography and nerve conduction studies in the diagnosing of carpal tunnel syndrome: clinical trial on accuracy

Statistical parameter

US

NCS

Sensitivity(%)

84.6 (76.2–90.9)

92.3 (85.4–96.6)

Specificity(%)

81.8 (48.2–97.7)

90.9 (58.7–99.8)

Positive predictive value(%)

97.8 (92.2–99.7)

99.0 (94.4–100.0)

Negative predictive value(%)

36.0 (18.0–57.5)

55.6 (30.8–78.5)

Positive likelihood ratio(%)

4.7 (1.3–16.4)

10.2 (1.6–65.9)

Negative likelihoodratio(%)

0.2 (0.1–1.3)

0.1 (0–0.2)

  1. NCS nerve conduction studies, US ultrasonography
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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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