Table 4.

Estimated impact of intervention by intervention cohort and comparison group^a

Intervention group	Comparison
	Within intervention	Contemporary controls	Historical controls
	Odds Ratio (95% CI); p	Odds Ratio (95% CI); p	Odds Ratio (95% CI); p
Overall	0.47 (0.14, 1.61); 0.23	0.46 (0.12, 1.71); 0.25	0.42 (0.09, 2.06); 0.29
Early intervention	0.49 (0.08, 2.98); 0.44	0.46 (0.09, 2.40); 0.35	0.47 (0.08, 2.91); 0.42
Late intervention	0.47 (0.11, 2.04); 0.32	0.43 (0.10, 1.77); 0.24	0.37 (0.06, 2.35); 0.29

CI Confidence Interval. p = Wald p-value

^a All models include clustering for patient and provider