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Table 6 Inter- and intra-observer reliabilities of OC4Ds and OCDs

From: A novel method for measurement of the occipital-cervical distance via the occiput-C4 distance

  

OC4D

OCD

P value*

ICC

Std error

95% CI

ICC

Std error

95% CI

Neutral

 inter-observer reliability

0.945

0.185

0.921–0.965

0.785

0.254

0.689–0.814

<  0.05

 intra-observer reliability

0.981

0.124

0.941–0.988

0.832

0.239

0.812–0.841

<  0.05

Extension

 inter-observer reliability

0.953

0.173

0.942–0.971

0.654

0.312

0.638–0.664

<  0.001

 intra-observer reliability

0.972

0.142

0.953–0.985

0.671

0.301

0.651–0.685

<  0.001

Flexion

 inter-observer reliability

0.961

0.156

0.948–0.987

0.681

0.289

0.678–0.688

<  0.05

 intra-observer reliability

0.968

0.151

0.955–0.989

0.695

0.262

0.684–0.715

<  0.001

  1. OC4D Occiput-C4 distance, OCD Occipitocervical distance
  2. *Comparison of the ICC values between OC4D and OCD using the Z test
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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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