Table 4.

Counts, percentage change, and relative risks of imaging, injections, surgery events, and downstream care after six months from the initial visit by treatment group.

		Event						95% CI4
Domain	Treat	Yes1	No	Total	Rates	% Change2	RR3	LB	UB	p5 <
Imaging	MC	13	1266	1279	0.0102	-49.75%	1.99	1.156	3.498	0.0110
	CC	726	35078	35804	0.0203
Injections	MC	14	1266	1280	0.0109	-39.44%	1.64	0.987	2.781	0.0611
	CC	643	35147	35763	0.0180
Surgery	MC	2	1278	1280	0.0016	-78.38%	4.73	1.179	19.00	0.0153
	CC	265	35569	35834	0.0074
1. Yes means that these services were provided. 2. % change is calculated as 100 x (.0102 - .0203)/.0203 = -49.75% reflecting 49.75% less imaging for MC. 3. RR or relative risk is the ratio of CC/MC where, for example, 0.0203/0.0102 = 1.99, which indicates that imaging was 1.99 times more likely for CC subjects relative to MC subjects. 4. 95% confidence interval (CI) shows the lower and upper bounds (LB and UB) for relative risks. 5. p < values reflecting the likelihood of rejecting the null hypothesis (Ho) of no differences in CC & MC risks.
		Event						95% CI4
Domain	Treat	None1	Some	Total	Rates	% Change2	RR3	LB	UB	p5 <
DownStream Care	MC	35	1511	1546	0.0226	-77.72%	4.49	4.44	4.54	0.0001
	CC	399	3527	3926	0.1016

1. None means that these no services were necessary after 6 months of care from baseline. 2. %change is calculated as 100 x((0.0226 - 0.1016)/0.1016) = -77.72% reflecting less care after 6 months for MC.

3. RR or relative risk is the ratio of CC/MC where, for example, 0.1016/0.0226 = 4.49, which indicates that downstream care was 4.49 times more likely for CC subjects relative to MC subjects.

4. 95% confidence interval (CI) shows the lower and upper bounds (LB and UB) for relative risks.

5. p < values reflecting the likelihood of rejecting the null hypothesis (Ho) of no differences in CC & MC risks.