Volume 20, Number 4—April 2014
CME ACTIVITY - Research
Travel-associated Antimicrobial Drug–Resistant Nontyphoidal Salmonellae, 2004–2009
Russell S. Barlow, Emilio E. DeBess
, Kevin L. Winthrop, Jodi A. Lapidus, Robert Vega, and Paul R. Cieslak
, Kevin L. Winthrop, Jodi A. Lapidus, Robert Vega, and Paul R. Cieslak
Table 5
Associations of salmonellosis with CIR among 1,407 sporadic cases only, Oregon, 2004–2009*
| Variable | No. patients | % CIR isolates | Odds ratio (95% CI) | Adjusted odds ratio (95% CI) |
|---|---|---|---|---|
| Patient travel to Asia | ||||
| No | 1,363 | 17.9 | Referent | |
| Yes |
44 |
38.6 |
2.9 (1.6–5.4) |
4.6 (2.3–9.4) |
| Year ( odds of CIR cases/y) |
1,407 |
18.6 |
1.0 (0.9–1.1) |
1.1 (1.0–1.2) |
| Salmonella serotype | ||||
| Enteritidis | 254 | 7.5 | Referent | |
| Typhimurium | 179 | 31.8 | 5.8 (3.3–10.2) | 6.4 (3.6–11.5) |
| Heidelberg | 94 | 33.0 | 6.1 (3.2–11.5) | 6.9 (3.6–13.2) |
| Typhimurium var. Copenhagen | 81 | 54.3 | 14.7 (7.8–27.9) | 17.3 (8.9–33.4) |
| Newport | 78 | 42.3 | 9.1 (4.7–17.3) | 9.6 (4.9–18.6) |
| I 4, 5, 12:i:- | 60 | 23.3 | 3.8 (1.8–8.0) | 4.2 (1.9–9.0) |
| Montevideo | 48 | 2.1 | 0.3 (0.0–2.0) | 0.3 (0.0–2.2) |
| Saintpaul | 35 | 14.3 | 2.1 (0.7–5.9) | 2.3 (0.8–6.7) |
| Paratyphi B var. L+ Tartrate+ | 36 | 19.4 | 3.0 (1.2–7.7) | 3.2 (1.2–8.5) |
| All other |
542 |
9.2 |
1.3 (0.7–2.2) |
1.2 (0.7–2.1) |
| Patient age, y | ||||
| 18–64 | 785 | 17.7 | Referent | |
| <1 | 94 | 21.3 | 1.3 (0.7–2.1) | 1.6 (0.9–2.8) |
| 1–4 | 156 | 18.0 | 1.0 (0.6–1.6) | 0.7 (0.4–1.2) |
| 5–17 | 209 | 21.1 | 1.2 (0.8–1.8) | 0.9 (0.6–1.4) |
| >65 |
163 |
18.4 |
1.0 (0.7–1.6) |
1.1 (0.7–1.7) |
| Patient race | ||||
| White | 1,295 | 18.1 | Referent | |
| Not white | 112 | 24.1 | 1.4 (0.9–2.3) | 1.3 (0.8–2.2) |
*Multiple logistic regression analysis. CIR, clinically important resistance to >1 of the following: ampicillin, ceftriaxone, ciprofloxacin, gentamicin, or trimethoprim/sulfamethoxazole. Boldface indicates statistical significance at p<0.05.
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