Table 2.

Regression models fit for each scenario specified in Table 1. All models include the intervention assignment and adjustment for randomization factors (region and urban/suburban vs. rural). For the center-level models that include self-reported race, the variable used to encode self-reported race at the cluster level is displayed in parentheses

Level of data	Model	Adjusted for self-reported race	Allows HTE between intervention and urban	Allows HTE between intervention and self-reported race
	1a
	1b		✔
Individual	1c	✔
	1d	✔	✔
	1e	✔		✔
	1f	✔	✔	✔
	2a
	2b		✔
	2c	✔(proportion)
	2d	✔(indicator)
Center	2e	✔(proportion)	✔
	2f	✔(indicator)	✔
	2 g	✔(proportion)		✔
	2 h	✔(indicator)		✔
	2i	✔(proportion)	✔	✔
	2j	✔(indicator)	✔	✔