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Volume 12, Number 2—February 2006

Dispatch

Salmonella-associated Deaths, Sweden, 1997–2003

Anders Ternhag*†Comments to Author , Anna Törner*, Karl Ekdahl*†, and Johan Giesecke*†
Author affiliations: *Swedish Institute for Infectious Disease Control, Solna, Sweden; †Karolinska Institutet, Stockholm, Sweden

Main Article

Table 1

Standardized mortality ratios (SMRs) among 30,199 Swedish patients with reported cases of salmonellosis acquired domestically and abroad, 1997–2003*

Time after infection (mo) Infected domestically (n = 5,139)
Infected abroad (n = 25,060)
Obs Exp SMR (95% CI)† Obs Exp SMR (95% CI)
<1 21 3.8 5.6 (3.4–8.2) 4 7.0 0.6 (0.2–1.2)
1–3 34 7.2 4.7 (3.3–6.5) 19 14.2 1.3 (0.8–2.0)
4–12 55 30.3 1.8 (1.4–2.3) 36 64.3 0.6 (0.4–0.8)
>12 146 107.3 1.4 (1.1–1.6) 215 341.2 0.6 (0.5–0.7)

*Obs, observed number of deaths; Exp, expected number of deaths; CI, confidence interval.
†p<0.0001.

Main Article

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