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Table 2 Median annual incidence of infections caused by S. sonnei or S. flexneri by illness severity among adults aged 18 years — Foodborne Diseases Active Surveillance Network, 2002–2014

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

 

Incidence per 100,000 (IQRa)

Severe shigellosis

Shigellosis

All

0.56 (0.49–0.70)

2.17 (1.83–2.33)

Sex

 Male

0.63 (0.53–0.89)

2.22 (1.98–2.75)

 Female

0.50 (0.41–0.59)

1.89 (1.78–2.28)

Age group, years

 18–49

0.67 (0.60–0.88)

2.77 (2.27–3.06)

 ≥ 50

0.39 (0.33–0.45)

1.22 (0.96–1.34)

Race

 Black

1.42 (1.13–1.91)

3.58 (3.45–4.95)

 White

0.44 (0.37–0.51)

1.80 (1.66–2.09)

 Other

Not assessedb

Not assessedb

Species

S. flexneri

0.19 (0.16–0.23)

0.60 (0.56–0.64)

S. sonnei

0.39 (0.31–0.43)

1.57 (1.24–1.73)

  1. aInterquartile range; bUnable to assess because of limited sample size