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Subgroups of dabigatran vs rivaroxaban users with respect to the primary composite endpoint. The subgroups are the terminal nodes of the optimal causal forest model. The green subgroup favors the use of dabigatran while the red subgroup favors rivaroxaban. All the values were estimated based on the matched sample of dabigatran and rivaroxaban users. ATE, average treatment effect; ERPO, events rate per 1,000.
