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Table 1 Case-control study and odds ratios

From: Outbreak of acute gastroenteritis in an air force base in Western Greece

Meals

Cases (n = 100)

Controls (n = 66)

Odds Ratio

95% CI

 

Yes

No

Yes

No

  

Lunch on 20.9.2005 (complete or partly)

99

1

14

52

370

48 – 7700

Lunch complete

79

21

7

59

32

12 – 90

Dinner on 20.9.2005

27

72

44

22

0.8

0.4 – 1.5