Volume 18, Number 1—January 2012
Letter
Identifying Risk Factors for Shiga Toxin–producing Escherichia coli by Payment Information
Hendrik Wilking
, Udo Götsch, Helma Meier, Detlef Thiele, Mona Askar, Manuel Dehnert, Christina Frank, Angelika Fruth, Gérard Krause, Rita Prager, Klaus Stark, Boris Böddinghaus, Oswald Bellinger, and René Gottschalk
, Udo Götsch, Helma Meier, Detlef Thiele, Mona Askar, Manuel Dehnert, Christina Frank, Angelika Fruth, Gérard Krause, Rita Prager, Klaus Stark, Boris Böddinghaus, Oswald Bellinger, and René Gottschalk
Table
Univariable analysis of risk factors for bloody diarrhea among users of 2 cafeterias in Frankfurt, Germany, 2011
| Risk factor | No. case-patients exposed/ total no. (%) | No. controls exposed/ total no. (%) | Univariable analysis* |
|
|---|---|---|---|---|
| Odds ratio (95% CI) | p value | |||
| Salad bar | 20/23 (87) | 16/30 (53) | 5.83 (1.42–23.88) | 0.014 |
| Dessert | 16/23 (70) | 18/30 (60) | 1.52 (0.48–4.81) | 0.473 |
| Fruits | 5/23 (22) | 10/30 (33) | 0.53 (0.15–1.81) | 0.312 |
| Asparagus dish | 7/23 (30) | 11/30 (37) | 0.76 (0.24–2.41) | 0.635 |
| Female sex | 16/23 (70) | 15/30 (50) | 2.28 (0.73–7.15) | 0.155 |
| Age, y | ||||
| <30 | 12/23 (52) | 6/30 (20) | 2.80 (0.62–12.66) | 0.181 |
| 30–<40 | 5/23 (22) | 7/30 (23) | Reference | Reference |
| 40–<50 | 4/23 (17) | 13/30 (43) | 0.43 (0.09–2.14) | 0.303 |
| >50 | 2/23 (9) | 4/30 (13) | 0.70 (0.09–5.43) | 0.733 |
*Estimates in a multivariable model remained virtually unchanged.
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