Table 2.

Number of Gene–Disease Association Studies Reported in the Medical Literature, by Year and Disease, CDC Genomics and Disease Prevention Information System, 2001–2004^a

Disease	No. published articles
	2001	2002	2003	2004
Coronary heart disease (and stroke)	197	205	262	238
Diabetes	128	154	156	165
Breast cancer	61	111	136	146
Colorectal cancer	53	55	46	70
Lung cancer	35	52	60	55
Alzheimer’s	88	100	111	145
Asthma	38	40	49	71

^aSearch was conducted on December 30, 2004, at http://www2a.cdc.gov/genomics/GDPQueryTool/frmQueryAdvPage.asp.