Table 3.
Association of stx Genotypes With Clinical Outcome
| stx Genotype | Strains From: |
OR (95% CI) P Value for HUS | |
|---|---|---|---|
| HUS (n = 269) | AC (n = 387) | ||
| stx1a | 1 | 3 | .48 (0.049–4.62) .65* |
| stx2a | 53 | 53 | 1.55 (1.02–2.35) .04 |
| stx2c | 10 | 131 | .075 (0.04–0.15) <.0001 |
| stx1a/stx2a | 152 | 139 | 2.32 (1.69–3.19) <.0001 |
| stx1a/stx2c | 2 | 30 | .06 (0.02–0.27) <.0001* |
| stx1a/stx2a/stx2c | 1 | 9 | .16 (0.02–1.24) .05* |
| stx2a/stx2c | 50 | 22 | 3.79 (2.23–6.43) <.0001 |
Abbreviations: AC, asymptomatic carrier; CI, confidence interval; HUS, hemolytic uremic syndrome; OR, odds ratio.
* Fisher's exact test value (2-tailed).