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Table 4 Correlation between US-assessed joint cartilage thicknesses measured as Z-score and Bone age and bone health index assessed by digital radiogrammetry. N = 67

From: Joint cartilage thickness and automated determination of bone age and bone health in juvenile idiopathic arthritis

US mean Z score

Bone age GP SDS

BHI SDS

r

p

r

p

Knee

- 0.288

0.023*

- 0.069

0.587

Ankle

- 0.172

0.177

- 0.222

0.073

Wrist

- 0.298

0.018*

- 0.121

0.331

2nd MCP

- 0.500

<0.001*

0.019

0.880

2nd PIP

- 0.058

0.649

−0.009

0.945

  1. US mean Z score: mean of the Z score of joint cartilage thickness assessed by ultrasonography of the left and right joint. GP Greulich-Pyle, BHI Bone health index, SDS standard deviation score. *: significant correlation p < 0.05
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Pediatric Rheumatology

ISSN: 1546-0096