Table 1.

HIV testing options offered across the three study arms in the pragmatic randomised controlled trial

Arm	Offers	Description
1	One common option	Combines the on average most preferred levels of each attribute included in the DCE, as described by the mean parameter estimates from a mixed logit model.
	Three targeted options	Comprise features widely available in the study area. The targeted options are predicted to be jointly more-preferred than the common option by the largest possible share of participants.
2	One common option	Combines the on average most preferred levels of each attribute included in the DCE, as described by the mean parameter estimates from a mixed logit model.
	Three enhanced options	Includes additional features that are not yet widely available in the study area. The enhanced options are predicted to be jointly more-preferred than the common option by the largest possible share of participants.
3	One common option	Combines the on average most preferred levels of each attribute included in the DCE, as described by the mean parameter estimates from a mixed logit model.
	Three less preferred options	Includes options that are widely available in the study area and jointly predicted to be equally or less-preferred than the common option by the largest possible share of participants.

DCE, discrete choice experiment.