Table II.
Logistic regression comparing the association of enterotoxigenic Escherichia coli diagnosis and independent variables
| Independent variables | Odds ratio | Standard error | 95% Confidence interval | P-value |
|---|---|---|---|---|
| Clostridium difficile detection | ||||
| No | Referent | |||
| Yes | 0.11 | 0.125 | 0.013–.97 | 0.047 |
| Clostridium perfringens detection | ||||
| No | Referent | |||
| Yes | 0.20 | 0.148 | 0.049–0.85 | 0.029 |
| Rotavirus detection | ||||
| No | Referent | |||
| Yes | 0.29 | 0.170 | 0.95–0.91 | 0.034 |
| Seasona | ||||
| Winter | Referent | |||
| Spring | 0.38 | 0.171 | 0.16–0.92 | 0.032 |
| Summer | 0.37 | 0.177 | 0.15–0.94 | 0.037 |
| Yeara | ||||
| 2009 | Referent | |||
| 2001 | 9.6 | 7.60 | 2.0–45 | 0.004 |
| 2002 | 9.6 | 7.56 | 2.1–45 | 0.004 |
| 2003 | 12 | 8.68 | 2.7–50 | 0.001 |
| 2004 | 5.0 | 3.95 | 1.1–24 | 0.042 |
| 2005 | 4.0 | 3.03 | 0.89–18 | 0.07 |
| 2007 | 4.3 | 3.39 | 0.93–20 | 0.062 |
a
Parameters for fall, 2006, 2008, and 2010 are not shown (P > 0.1).