Table 3.

BME and structural lesions on MRI-spine of patients from the Devenir des Spondyloarthropathies Indifférenciées Récentes cohort over 5 years of follow-up

	Baseline mean (SD) (n=145)	2 years’ mean (SD) (n=129)	5 years’ mean (SD) (n=145)	Change over 5 years mean (SD)		P value*
BME lesions (scores)
Mean Berlin score† (0–69)	0.6 (1.5)	0.6 (1.2)	0.7 (1.3)	0.1 (1.7)		0.43
Mean 23 DVU SPARCC score† (0–414)	1.6 (4.1)	1.7 (3.3)	1.9 (3.7)	0.3 (4.6)		0.41
Structural lesions (scores)
Mean number of erosions†‡ (0–92)	0.1 (0.2)	0.1 (0.2)	0.1 (0.2)	0.0 (0.2)		1.000
Mean number of bone spur†‡ (0–92)	0.1 (0.3)	0.2 (0.3)	0.2 (0.4)	0.1 (0.3)		0.012
Mean number of fatty lesions†‡ (0–92)	0.2 (0.7)	0.3 (0.8)	0.4 (1.0)	0.1 (0.4)		0.001
Mean number of fatty lesions and / or erosions (0–184) †‡	0.3 (0.8)	0.3 (1.0)	0.4 (1.1)	0.2 (0.5)		<0.001
Mean total number of lesions§†‡ (0–322)	0.4 (0.9)	0.5 (1.1)	0.6 (1.2)	0.2 (0.6)		<0.001

DVU, discovertebral unit.