Table 1 Estimated^* number of deaths on 11 September 2001 in United States attributable to leading risk factors^w1

Risk factor	Estimated No of deaths
Tobacco	1189
Diet or activity patterns	1093
Alcohol	232
Microbial agents	205
Toxic agents	150
Motor vehicles	117
Firearms	79
Sexual behaviour	55
Illicit use of drugs	46
Total	3166

^{*Data were interpolated by dividing estimated annual mortality from leading risk factors in 2000^w2 by 366.

Table 2 Estimated^* number of deaths in United States on 11 September 2001 from 10 leading causes^w3}

Cause of death	Estimated No of deaths
Heart disease	1918
Cancer	1517
Stroke	448
Chronic lower respiratory disease	337
Accidents	278
Diabetes	196
Influenza or pneumonia	170
Alzheimer�s disease	148
Nephritis, nephrotic syndrome, and nephrosis	108
Septicaemia	88
Total	5208

^{*Data were interpolated by dividing annual mortality for 2001^w3 by 365.

w1 McGinnis JM, Foege WH. Actual causes of death in the United States. JAMA 1993;270:2207-12.
w2 Mokdad AH, Marks JS, Stroup DF, Gerberding JL. Actual causes of death in the United States, 2000. JAMA 2004;291:1238-45.
w3 Anderson RN, Smith BL. Deaths: leading causes for 2001. National Vital Statistics Reports Vol 52, No 9. 7 Nov 2003. Table C, p 8. www.cdc.gov/nchs/data/nvsr/nvsr52/nvsr52_09.pdf (accessed 6 Sep 2005).}