TABLE 2.
Salmonella serovara | Total no. | No. (%) of isolates associated with invasive disease | Relative risk of invasiveness compared to S. Typhimurium (95%CI) | P value |
---|---|---|---|---|
Dublin | 101 | 37 (36.3) | 18.8 (14.4–24.6) | <0.001 |
Panama | 148 | 40 (26.8) | 13.9 (10.6–18.3) | <0.001 |
Virchow | 1,740 | 166 (9.5) | 4.9 (4.2–5.8) | <0.001 |
Schwarzengrund | 146 | 12 (8.2) | 4.2 (2.4–7.3) | <0.001 |
Heidelberg | 386 | 31 (7.9) | 4.1 (2.9–5.8) | <0.001 |
Javiana | 126 | 9 (7.0) | 3.7 (1.9–6.9) | <0.001 |
Bredeney | 105 | 6 (5.7) | 2.9 (1.3–6.4) | 0.007 |
Thompson | 386 | 6 (5.5) | 2.9 (1.3–6.4) | <0.001 |
Chester | 240 | 19 (4.9) | 2.5 (1.6–4.0) | 0.046 |
Enteritidis | 1,299 | 118 (4.6) | 2.4 (2.0–2.9) | <0.001 |
Corvallis | 2,228 | 9 (3.8) | 1.9 (1.0–3.7) | 0.031 |
Bovismorbificans | 101 | 45 (3.4) | 1.8 (1.3–2.4) | <0.001 |
Mississippi | 148 | 58 (2.6) | 1.3 (1.0–1.7) | <0.001 |
Typhimurium | 33,081 | 639 (1.9) | NAb | NA |
Only serovars with >100 isolates were included in the analysis.
NA, not applicable (because S. Typhimurium is the reference isolate).