Table 4.
Multivariate analysis of characteristics associated with hospitalization in STEC cases from Michigan
| Characteristic | Adjusted OR (95% CI) | P value* |
|---|---|---|
| STEC serogroup | ||
| Non-O157 | 1·0 | – |
| O157 | 2·1 (1·22–3·56) | 0·009 |
| stx profile | ||
| stx1 only | 1·0 | – |
| stx2 only | 1·1 (0·61–1·89) | 0·82 |
| stx1, stx2 | 1·0 (0·53–1·71) | 0·87 |
| Symptoms | ||
| Diarrhoea only | 1·0 | – |
| Bloody diarrhoea | 3·0 (2·15–4·24) | <0·0001 |
| Age group (years) | ||
| ≤10 | 1·0 | – |
| 11–59 | 1·5 (1·06–2·00) | 0·02 |
| ≥60 | 3·8 (2·42–6·03) | <0·0001 |
| Gender | ||
| Male | 1·0 | – |
| Female | 1·2 (0·94–1·59) | 0·13 |
OR, Odds ratio; CI, confidence interval.
† Wald χ2 test.