Table. Percentage of insurees with calcium channel blockers (total and subgroups) according to age group (2009)^*.

Age	Calcium channel blocker		Dihydropyridine		Nifedipine
					Total		Sustained-release		Immediate-release
	n	%	n	%	n	%	n	%	n	%
		(95% CI)		(95% CI)		(95% CI)		(95% CI)		(95% CI)
0–39	248	0.2 (0.2–0.3)	216	0.2 (0.2–0.2)	25	0.0	11	0.0	14	0.0
40–59	3777	5.2 (5.1–5.4)	3479	4.8 (4.7–5.0)	216	0.3 (0.3–0.3)	65	0.1 (0.1–0.1)	157	0.2 (0.2–0.3)
60–79	13 741	20.6 (20.2–20.9)	12 123	18.1 (17.8–18.4)	969	1.4 (1.4–1.5)	504	0.8 (0.7–0.8)	490	0.7 (0.7–0.8)
≥80	5687	28.5 (27.8–29.1)	4876	24.4 (23.8–25.0)	490	2.5 (2.3–2.7)	256	1.3 (1.1–1.5)	251	1.3 (1.1–1.4)
Total	23 453	9.0 (8.9–9.1)	20 694	7.9 (7.8–8.0)	1700	0.7 (0.6–0.7)	836	0.3 (0.3–0.3)	912	0.3 (0.3–0.4)
>65	17 215	24.1 (23.8–24.4)	15 006	21.0 (20.7–21.3)	1313	1.8 (1.7–1.9)	700	1.0 (0.9–1.1)	651	0.9 (0.8–1.0)

Reference population: n = 260 672; ^* multiple entries