Table 3. Differences in radiographic progression between autoantibody groups in the radiographic cohort.

	Triple-positive vs single-positive	Triple-positive vs negative	Single-positive vs negative
Difference in total SvH change between baseline and 12 months	1·2 (0·1-2·4, 0·5)	1·0 (-0·2 to 2·3, 0·5)	-0·2 (-1·1 to 0·7, 0·4)
Difference in erosion score change between baseline and 12 months	0·8 (0·1-1·6, 0·3)	0·8 (-0·1 to 1·6, 0·4)	-0·1 (-0·6 to 0·4, 0·2)
Difference in joint space narrowing score change between baseline and 12 months	0·6 (-0·3 to 1·5, 0·4)	0·5 (-0·3 to 1·3, 0·3)	-0·1 (-0·7 to 0·5, 0·3)

Data are mean (95% CI, SE). SvH=Sharp-van der Heijde.