Adjusted home-recorded systolic blood pressure (SBP) and diastolic blood pressure (DBP) responses to atenolol, HCTZ, and the combination of the two drugs (adjusted for baseline BP, family history of high blood pressure, strategy arm, and final doses of HCTZ and atenolol). “ATEN arm” indicates those randomized to atenolol monotherapy (with addition of HCTZ); “HCTZ arm” indicates those randomized to HCTZ (with addition of atenolol). ATEN, atenolol; HCTZ, hydrochlorothiazide.