Figure 1

Study design. *When the difference in the patients’ seated diastolic blood pressure between week −2 and week 0 was ⩾10 mm Hg, the baseline single-blind screening period was extended up to 6 weeks.

Study design. *When the difference in the patients’ seated diastolic blood pressure between week −2 and week 0 was ⩾10 mm Hg, the baseline single-blind screening period was extended up to 6 weeks.