Table 3

Correlation of interferon gene scores and interferon chemokine scores in adult and juvenile DM patients

Interferon gene score

Interferon chemokine score



Adult DM (n = 44)

Juvenile DM (n = 27)

Adult DM (n = 44)

Juvenile DM (n = 29)





r

P value

r

P value

r

P value

r

P value


Global VAS score

0.599

<0.0001

0.319

0.105

0.622

<0.0001

0.504

0.005

Muscle VAS score

0.674

<0.0001

0.357

0.07

0.606

<0.0001

0.431

0.02


Interferon gene score correlates with dermatomyositis (DM) disease activity measures, global visual analogue scale (VAS) score (as measured by physician on 1 to 100 scale) and muscle VAS score in adult DM patients. Interferon chemokine scores correlate with DM disease activity measures, global VAS score and muscle VAS score in adult and juvenile DM patients. r, Pearson correlation coefficient. Significant correlations (P < 0.05) presented in bold.

Baechler et al. Arthritis Research & Therapy 2011 13:249   doi:10.1186/ar3531