Volume 21, Number 9—September 2015
THEME ISSUE
Emerging Infections Program
Emerging Infections Program
Socioeconomic Status and Foodborne Pathogens in Connecticut, USA, 2000–20111
Bridget M. Whitney
, Christina Mainero, Elizabeth Humes, Sharon Hurd, Linda Niccolai, and James L. Hadler
, Christina Mainero, Elizabeth Humes, Sharon Hurd, Linda Niccolai, and James L. Hadler
Table 4
Age-adjusted incidence rates and age-adjusted rate ratios of STEC O157, non-O157, and HUS by census tract–level SES, Connecticut, USA, 2000–2011*
| STEC category |
Census tract–level SES, % living below poverty level |
p value† |
|||
| <5 |
5–9.9 |
10–19.9 |
≥20 |
||
| All STEC, N = 744 | <0.001 | ||||
| Age-adjusted IR | 2.36 | 1.67 | 1.22 | 0.62 | |
| Age-adjusted IRR | 1.00 | 0.71 | 0.52 | 0.26 | |
| STEC O157, n = 471 | <0.001 | ||||
| Age-adjusted IR | 1.48 | 1.20 | 0.70 | 0.36 | |
| Age-adjusted IRR | 1.00 | 0.81 | 0.47 | 0.24 | |
| STEC non-O157, n = 273 | <0.001 | ||||
| Age-adjusted IR | 0.89 | 0.48 | 0.52 | 0.26 | |
| Age-adjusted IRR | 1.00 | 0.54 | 0.58 | 0.29 | |
| HUS, n = 49 | <0.001 | ||||
| Age-adjusted IR | 0.16 | 0.17 | 0.03 | 0.04 | |
| Age-adjusted IRR | 1.00 | 1.04 | 0.19 | 0.25 | |
*IR, incidence rate; IRR, incidence rate ration; HUS, hemolytic uremic syndrome; SES, socioeconomic status; STEC, Shiga toxin–producing Escherichia coli. Age-adjusted IRs calculated/100,000 persons; Reference category for age-adjusted IRRs is <5% poverty.
†By χ2 test for trend.
1Preliminary results from this study were presented at the 2014 Annual Conference of the Council of State and Territorial Epidemiologists; June 23–25, 2014; Nashville, Tennessee, USA.
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