Table 6. Antihypertensive drugs used.

	Baseline (n=21 571)	16 weeks (n=21 571)
No. of antihypertensive drugs (including olmesartan)	1.5±0.7	1.6±0.8
Antihypertensive drugs other than olmesartan, n (%)	8354 (38.7)	9663 (44.8)
Calcium channel blocker, n (%)	7306 (33.9)	8447 (39.2)
β-Blocker, n (%)	1288 (6.0)	1397 (6.5)
Diuretic, n (%)	971 (4.5)	1414 (6.6)
α-Blocker, n (%)	438 (2.0)	513 (2.4)
Angiotensin-converting enzyme inhibitor, n (%)	311 (1.4)	311 (1.4)
Angiotensin receptor blocker, n (%)	165 (0.8)	167 (0.8)