Table 2.

Temporal trends in incidence of acute myocardial infarction (AMI) without arrest and out‐of‐hospital cardiac arrest (OHCA) of cardiac origin transported by emergency medical service

	1998	1999	2000	2001	2002	2003	2004	2005	2006	2007	P for trend
AMI without arrest
All, n	916	864	802	814	847	891	901	916	790	855
Age‐adjusted incidence	34.7	32.3	30.3	29.9	31.0	32.8	33.4	33.6	29.1	30.9	0.790
(95% CI)	(32.4–37.0)	(30.1–34.5)	(28.1–32.5)	(27.8–32.0)	(28.9–33.1)	(30.6–35.0)	(31.1–35.7)	(31.4–35.8)	(27.0–31.2)	(28.8–33.0)
Men, n	625	616	570	590	588	632	611	640	559	594
Age‐adjusted incidence	53.4	52.3	49.1	49.5	49.4	53.4	52.1	53.7	47.0	50.1	0.810
(95% CI)	(49.1–57.6)	(48.1–56.5)	(45.0–53.2)	(45.4–53.6)	(45.3–53.5)	(49.1–57.6)	(47.9–56.3)	(49.5–57.9)	(43.0–51.0)	(46.0–54.2)
Women, n	291	248	232	224	259	259	290	276	231	261
Age‐adjusted incidence	17.6	14.8	13.4	12.9	15.2	15.0	16.8	16.1	13.4	14.5	0.860
(95% CI)	(15.5–19.7)	(12.9–16.7)	(11.6–15.2)	(11.1–14.7)	(13.2–17.2)	(13.1–16.9)	(14.8–18.8)	(14.1–18.1)	(11.6–15.2)	(12.6–16.4)
OHCA of cardiac origin
All, n	—	—	688	746	984	1,198	1,146	1,395	1,464	1,662
Age‐adjusted incidence	—	—	24.2	25.9	34.6	42.0	40.2	48.2	50.3	56.5	<0.001
(95% CI)	—	—	(22.3–26.1)	(24.0–27.8)	(32.4–36.8)	(39.5–44.5)	(37.8–42.6)	(45.6–50.8)	(47.6–53.0)	(53.7–59.3)
Men, n	—	—	420	462	595	734	667	834	911	974
Age‐adjusted incidence	—	—	35.4	38.8	50.3	62.5	56.9	70.7	77.1	82.6	<0.001
(95% CI)	—	—	(32.0–38.8)	(35.2–42.4)	(46.2–54.4)	(57.9–67.1)	(52.5–61.3)	(65.8–75.6)	(72.0–82.2)	(77.3–87.9)
Women, n	—	—	268	284	389	464	479	561	553	688
Age‐adjusted incidence	—	—	14.7	15.9	22.3	24.9	26.5	31.0	30.0	36.6	<0.001
(95% CI)	—	—	(12.8–16.6)	(13.9–17.9)	(20.2–24.7)	(22.5–27.3)	(23.9–29.1)	(28.2–33.8)	(27.3–32.7)	(33.6–39.6)

—, not applicable; CI, confidence interval; SD, standard deviation.