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 3
Associations of salmonellosis with CIR, Oregon, 2004–2009*
| Variable | No. patients | % CIR isolates | Odds ratio (95%CI) | Adjusted odds ratio(95% CI) | |
|---|---|---|---|---|---|
| Patient travel history | |||||
| No international travel | 1,571 | 16.2 | Referent | ||
| Travel to Asia |
46 |
39.1 |
3.3 (1.8–6.1) |
5.2 (2.6–10.4) |
|
| Case type | |||||
| Sporadic | 1407 | 18.6 | Referent | ||
| Outbreak |
406 |
10.8 |
0.5 (0.4–0.8) |
0.5 (0.4–0.7) |
|
| Year (odds of CIR cases/y) |
1,813 |
16.8 |
1.0 (0.9–1.1) |
1.1 (1.0–1.2) |
|
| Salmonella serotype | |||||
| Enteritidis | 334 | 6.0 | Referent | ||
| Typhimurium | 260 | 25.0 | 5.2 (3.1–8.9) | 6.2 (3.6–10.7) | |
| Heidelberg | 149 | 27.5 | 6.0 (3.3–10.6) | 7.4 (4.1–13.5) | |
| Typhimurium var. Copenhagen | 92 | 53.3 | 17.9 (9.7–32.9) | 20.2 (10.7–38.0) | |
| Newport | 82 | 41.5 | 11.1 (5.9–20.9) | 10.8 (5.6–20.5) | |
| I 4, 5, 12:i:- | 79 | 19.0 | 3.7 (1.8–7.6) | 4.1 (2.0–8.7) | |
| Montevideo | 72 | 4.2 | 0.7 (0.2–2.4) | 0.8 (0.2–2.7) | |
| Saintpaul | 52 | 15.4 | 2.9 (1.2–6.9) | 3.4 (1.4–8.3) | |
| Paratyphi B var. L+ Tartrate+ | 50 | 24.0 | 5.0 (2.2–10.9 | 5.8 (2.6–13.1) | |
| All other |
643 |
9.0 |
1.6 (0.9–2.6) |
1.5 (0.9–2.5) |
|
| Patient age, y | |||||
| 18–64 | 999 | 16.0 | Referent | ||
| <1 | 122 | 18.9 | 1.2 (0.8–2.0) | 1.4 (0.9–2.4) | |
| 1–4 | 220 | 16.4 | 1.0 (0.7–1.5) | 0.8 (0.5–1.2) | |
| 5–17 | 279 | 20.1 | 1.3 (0.9–1.8) | 1.0 (0.7–1.5) | |
| >65 |
193 |
15.5 |
1.0 (0.6–1.5) |
0.9 (0.6–1.4) |
|
| Patient race | |||||
| White | 1,662 | 16.7 | Referent | ||
| Not white | 151 | 18.5 | 1.1 (0.7–1.8) | 1.0 (0.6–1.6) | |
*Multiple logistic regression analysis of 1,813 patients; 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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