Table 1. Incidence Rate of Heart Failure From 2000 to 2005 by Sex and by Age Group.

	Observation Year
	2000	2001	2002	2003	2004	2005	P for Trend
Women
No. of incident cases	273	344	390	350	338	323
Person-years of follow-up	83 930	88 819	93 462	93 360	93 807	95 256
Incidence rate*	3.25	3.87	4.17	3.75	3.60	3.39	0.87
Incident rate by age group*
18–54 years	0.97	1.18	1.33	1.32	1.11	0.91
55–64 years	7.29	7.53	6.91	5.86	6.54	5.48
65–74 years	22.23	20.14	22.98	18.21	16.36	15.57
≥75 years	56.40	56.34	52.81	44.19	42.14	41.39
Men
No. of incident cases	249	322	359	352	355	346
Person-years of follow-up	72 114	75 732	79 512	79 862	79 862	80 079
Incidence rate*	3.45	4.25	4.52	4.41	4.45	4.32	0.16
Incident rate by age group*
18–54 years	1.36	1.48	1.56	1.34	1.55	1.22
55–64 years	6.76	10.47	11.83	9.21	8.78	8.95
65–74 years	27.24	24.56	24.79	25.15	26.09	18.49
≥75 years	55.25	56.07	49.01	57.13	40.40	57.83

^*Incident rate is presented per 1000 person-years of follow-up.