APHA
Back to Annual Meeting Page
 
American Public Health Association
133rd Annual Meeting & Exposition
December 10-14, 2005
Philadelphia, PA
APHA 2005
 
4126.0: Tuesday, December 13, 2005 - 1:00 PM

Abstract #105947

An ecological analysis of sociodemographic factors associated with food safety-related disease incidence among U.S. counties: National Notifiable Disease Surveillance System (NNDSS), 1993-2002

Man-huei Chang1, Samuel L. Groseclose2, Akbar Zaidi2, and Christopher Braden, MD3. (1) The Office of Genomics and Disease Prevention, Centers for Disease Control and Prevention, 4770 Buford Highway, Mail Stop K-89, Atlanta, GA 30341, 770-488-8519, mchang@cdc.gov, (2) NCHSTP/DSTDP/SDMB, Centers for Disease Control and Prevention, 1600 Clifton Road, MS E63, Atlanta, GA 30333, (3) Centers for Disease Control and Prevention, Foodborne and Diarrheal Diseases Branch, 1600 Clifton Road, MS A38, Atlanta, GA 30333

Background: Identifying sociodemographic and economic factors associated with food borne disease incidence may lead to new hypotheses concerning vehicles and routes of disease transmission in the community. Methods: Average annual incidence rates were calculated for salmonellosis, shigellosis, and Escherichia coli O157:H7 in counties that reported at least one case to NNDSS during 1993-2002. County-specific US Census data on twenty-six sociodemographic characteristics were obtained. Spearman's rank correlation coefficients were calculated, and multivariate regression analyses were performed with disease rates as dependent variables and sociodemographic factors as independent variables. Results: In the multivariate regression model, the three leading factors associated with salmonellosis incidence were residence in South region (1.58 [parameter estimate] ±0.48 [standard error]), physician rate per 100,000 persons (0.96±0.14), and percentage of population 45-64 years (-0.51±0.07), accounting for 7% of the total variation. For shigellosis, these factors were percentage of population < 5 years (1.88±0.29), percentage of population below poverty level (0.28±0.03), and percentage unemployed (0.43±0.07), accounting for 12% of the variation. For E. coli O157:H7 leading factors were percentage of farm workers (0.15±0.01), percentage of adults < ninth grade education (-0.04±0.01), and residence in South region (-0.65±0.11) accounting for 31% of the variation. Conclusion: A diverse set of sociodemographic factors are associated with the incidence of food borne diseases indicating complicated and diverse pathways of transmission. The county characteristics most closely associated with salmonellosis, shigellosis, and E. coli O157:H7 incidence include place of residence, age, education, and poverty.

Learning Objectives:

Keywords: Food Safety, Community Health

Presenting author's disclosure statement:

I wish to disclose that I have NO financial interests or other relationship with the manufactures of commercial products, suppliers of commercial services or commercial supporters.

Infectious Disease Epidemiology

The 133rd Annual Meeting & Exposition (December 10-14, 2005) of APHA