Volume 10, Number 6—June 2004
Research
Antimicrobial Resistance among Campylobacter Strains, United States, 1997–2001
Table 3
Y | Unadjusted ORa (95% CI) | AdjustedORb (95% CI) |
---|---|---|
1997c |
1.0 |
1.0 |
1998 |
1.0 (0.6 to 1.7) |
1.3 (0.7 to 2.4) |
1999 |
1.4 (0.9 to 2.3) |
2.1 (1.2 to 3.9) |
2000 |
1.1 (0.7 to 1.8) |
1.5 (0.8 to 2.8) |
2001 | 1.6 (1.0 to 2.5) | 2.5 (1.4 to 4.4) |
aOR, odds ratio; CI, confidence interval.
bAdjusted odds ratios were calculated by using logistic regression model, which accounted for site-to-site variation in prevalence.
c1997 was the reference value.
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