Table 2.

HF hospitalization rates, 1998–2008

	1998	1999	2000	2001	2002	2003	2004	2005	2006	2007	2008
Person-years	35981165	26161068	26442259	27209640	27990835	28455841	28733294	28773892	28070387	27520683	27297535
HF hospitalization rate per 100,000	2845	2656	2612	2542	2468	2496	2459	2333	2223	2116	1957
# unique HF patients per 100,000	2014	1935	1933	1886	1833	1851	1815	1724	1631	1533	1462
Observed HF hospitalization rate per 100,000 beneficiaries
Age 65 to 74	1783	1614	1564	1514	1468	1462	1416	1328	1229	1145	1026
Age 75 to 84	3582	3264	3203	3121	3027	3065	3027	2859	2717	2586	2403
Age 85 and higher	5746	5453	5406	5297	5152	5272	5255	5081	4935	4757	4519
Male	2944	2718	2624	2565	2509	2546	2536	2437	2324	2212	2055
Female	2778	2613	2603	2527	2439	2461	2402	2258	2149	2046	1883
White	2749	2555	2508	2435	2361	2390	2356	2228	2121	2024	1878
White male	2882	2650	2558	2493	2434	2472	2465	2358	2251	2146	2000
White female	2658	2490	2474	2395	2310	2330	2277	2132	2026	1933	1786
Black	4311	4124	4005	3969	3888	3940	3885	3787	3669	3503	3209
Black male	4142	3939	3727	3749	3701	3766	3772	3758	3635	3451	3201
Black female	4410	4235	4172	4103	4004	4049	3955	3805	3691	3537	3215
Other race	2187	2177	2215	2129	2067	2053	1980	1887	1753	1627	1470
Other male	2260	2212	2192	2096	2090	2073	2017	1939	1781	1672	1492
Other female	2138	2154	2231	2154	2049	2038	1953	1848	1731	1593	1454
Risk-adjusted HF hospitalization rate per 100,000 beneficiaries	2845	2752	2697	2622	2542	2566	2525	2392	2272	2163	2007

Abbreviations: HF, heart failure; SD, standard deviation. P<0.001 across years for all subgroups using a continuous time variable from a Poisson regression model. Other race includes Asian, Hispanic, North American Native, or other not specified. Risk-adjusted rates relative to 1998