Table 3: SI joint-related health outcomes survey. Each category was rated on a 0-10 scale where 0 = no pain or no difficulty and 10 = worst pain imaginable or severe difficulty.

	Baseline Mean (±SD)	12 mo Mean (±SD)	60 mo Mean (±SD)	t-Test at 60 mo
Light activities	6.4 (2.3)	3 (1.9)	2.4 (2.0)	p<0.001
Moderate activities	8.2 (2.7)	5.1 (3.3)	4.4 (3.5)	p<0.001
Vigorous activities	9.6 (0.8)	6.6 (3.7)	4.8 (3.5)	p<0.001
Sleep	7.5 (2.0)	3.6 (3.1)	3.3 (3.3)	p<0.001
Lifting	5.5 (3.0)	5.9 (3.2)	4.6 (3.3)	p=0.45
Overall happiness	6.4 (2.8)	3.2 (1.9)	3.8 (2.4)	p=0.02
Social Interest	4.2 (2.7)	4.9 (3.2)	3.9 (2.7)	p=0.81
Pain affect on social interest	7.2 (2.3)	2.6 (2.1)	3.1 (2.7)	p<0.001