Time to initiation of a new antihypertensive therapy in patients without or in patients with antihypertensive therapy at baseline. Cumulative event rates for time to initiation are shown for (A) a new antihypertensive therapy in patients without baseline antihypertensive therapy, (B) a new antihypertensive therapy in patients with baseline antihypertensive therapy, and (C) a new antihypertensive therapy class in patients with baseline antihypertensive therapy. HR, hazard ratio.