Appendix Table 2.

Correlation between the change scores in the 14 core continuous core items.^*

	V1	V2	V3	V4	V5	V6	V7	V8	V9	V10	V11	V12	V13	V14
V1	1.0	−0.30	0.22	0.26	0.16	0.32	0.21	0.12	0.17	0.17	−0.10	0.07	0.08	0.17
V2		1.0	−0.39	−0.31	−0.27	−0.29	−0.33	0.03	−0.06	−0.17	0.10	0.002	−0.30	−0.10
V3			1.0	0.17	0.27	0.31	0.23	−0.005	0.08	−0.05	−0.009	−0.18	0.30	0.05
V4				1.0	0.25	0.46	0.19	−0.09	0.18	0.03	−0.08	0.04	0.33	0.26
V5					1.0	0.13	0.25	−0.007	0.002	0.05	−0.14	−0.10	0.16	0.25
V6						1.0	0.28	−0.08	0.15	−0.07	−0.02	0.22	0.30	0.02
V7							1.0	0.07	0.27	0.10	0.22	0.11	0.33	0.23
V8								1.0	0.001	−0.12	−0.03	0.01	−0.12	−0.14
V9									1.0	0.20	0.35	0.20	0.23	0.47
V10										1.0	−0.13	0.11	0.05	0.36
V11											1.0	0.008	0.06	0.05
V12												1.0	0.16	−0.07
V13													1.0	0.28
V14														1.0

V1=MRSS, V2=FVC% predicted, V3=HAQ-DI, V4=Physician global, V5=Patient global, V6=Patient skin interference, V7=Pain, V8=Vitality, V9=Raynaud VAS, V10=Finger Ulcers VAS, V11=Number of digital ulcers, V12=BMI, V13=Breathing VAS, V14=GI VAS

^*renal crisis and tendon friction rubs not included