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Table 3 Factors associated with severe illness among adults aged 18 years with shigellosis — Foodborne Diseases Active Surveillance Network, 2002–2014

From: Disparities in severe shigellosis among adults — Foodborne diseases active surveillance network, 2002–2014

  Odds Ratioa (95% CI) P-value
Age group, years
 18–49 Male vs Female 1.32 (1.15–1.52) < 0.001
 ≥ 50 Male vs Female 1.07 (0.88–1.30) 0.51
Species
S. flexneri Male vs Female 1.39 (1.10–1.75) 0.005
S. sonnei Male vs Female 1.02 (0.90–1.15) 0.78
Race
 Black vs White   1.36 (1.22–1.52) < 0.001
 Black vs Other   1.27 (1.02–1.58) 0.04
Specimen collection year   1.04 (1.03–1.05) < 0.001
  1. aResults from a multivariable mixed-effects logistic regression model that included sex, age, species, race, data year and two interaction terms between sex & age and species & sex as covariates