Table 2.

Distribution of a 5% Sample of Cases From the Medicare Chronic Condition Warehouse^a, United States, 2002 and 2007^b

Condition	2002		2007
	No.	%	No.	%
Bone/joint disease
Hip/pelvic fracture	13,032	0.8	12,705	0.8
Osteoporosis	172,008	10.8	190,470	12.1
Rheumatoid arthritis or osteoarthritis	298,184	18.8	323,005	20.5
Cancer
Colorectal	15,802	1.0	14,955	0.9
Endometrial	2,232	0.2	2,344	0.3
Female breast	27,551	3.0	29,711	3.3
Lung	14,156	0.9	15,253	1.0
Prostate	44,851	6.6	45,453	6.0
Cardiovascular disease
Acute myocardial infarction	18,152	1.1	15,215	1.0
Atrial fibrillation	108,564	6.8	122,890	7.8
Heart failure	281,699	17.8	272,398	17.2
Ischemic heart disease	500,563	31.6	508,181	32.2
Neuropsychiatric illness
Alzheimer's disease	68,062	4.3	82,559	5.2
Alzheimer's disease and related disorders or senile dementia	156,177	9.8	171,645	10.9
Depression	165,528	10.4	196,845	12.5
Stroke/transient ischemic attack	78,098	4.9	69,031	4.4
Miscellaneous
Cataract	375,731	23.7	343,305	21.7
Chronic kidney disease	109,218	6.9	185,664	11.8
Chronic obstructive pulmonary disease	162,997	10.3	172,701	10.9
Diabetes mellitus	337,470	21.3	411,315	26.0
Glaucoma	145,396	9.2	159,415	10.1
Overall 5% sample
Total	1,586,139		1,579,292
Females	905,726	57.1	888,407	56.3
Males	680,413	42.9	690,885	43.7

^aThe Chronic Condition Warehouse is a database created to make Medicare claims data more readily available to researchers studying 21 predefined conditions. More details are available from the Centers for Medicare and Medicaid Services (http://www.ccwdata.org/datadoc.php).

^bData were available for a 5% random sample from 2000 forward and for a 100% sample from 2005 forward. Sample sizes provided are for a 5% random sample for 2 representative years. Beneficiaries may have been counted in more than 1 condition category.