Table 3

Change over time in SI joint pain, Oswestry Disability Index, SF-36, and EQ-5D.

Time pointMean (SD)Improvement from Baseline, Mean (SD)P-value*
VAS SI joint pain
Baseline
Month 1
Month 3
Month 6
Month 12
Month 18
Month 24
79.8 (12.8)
37.0 (26.3)
30.7 (25.9)
30.0 (26.5)
30.4 (27.6)
28.1 (27.8)
26.0 (26.7)
-
42.7 (28.5)
49.2 (25.6)
49.9 (28.3)
49.3 (29.5)
51.5 (28.8)
53.3 (27.6)		<.0001
Oswestry Disability Index
Baseline
Month 1
Month 3
Month 6
Month 12
Month 24
55.2 (11.5)
42.6 (17.4)
33.8 (18.8)
32.5 (19.7)
31.5 (19.2)
30.9 (20.5)
-
12.5 (19.2)
21.3 (19.2)
22.7 (20.6)
23.8 (20.6)
24.5 (21.1)		<.0001
SF-36 PCS
Baseline
Month 6
Month 12
Month 24

SF-36 MCS
Baseline
Month 6
Month 12
Month 24
31.7 (5.6)
40.1 (9.6)
40.5 (9.6)
40.7 (10.3)


38.5 (11.3)
47.8 (11.6)
48.2 (12.3)
49.0 (11.5)
-
8.3 (9.7)
8.8 (9.8)
8.9 (10.6)


-
9.3 (12.7)
9.5 (11.8)
10.1 (11.8)		<.0001





<.0001
EQ-5D TTO
Baseline
Month 6
Month 12
Month 24
0.43 (0.18)
0.69 (0.21)
0.71 (0.20)
0.71 (0.22)
-
0.25 (0.24)
0.27 (0.24)
0.27 (0.26)		<.0001

  • ↵* Repeated measures analysis of variance compared to baseline