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Table 1 Simulated case-control data with true odds ratio = 5

From: An easy approach to the Robins-Breslow-Greenland variance estimator

Case

Control

ø

Controls:cases

36

97

0.58

4

6

71

  

42

168

  

Ca

Co

  

41

79

0.94

2

1

5

  

42

84

  

Ca

Co

  

2

1

0.02

2

26

55

  

28

56

  

Ca

Co

  

19

25

0.30

3

9

59

  

28

84

  

Ca

Co

  

20

41

0.37

4

8

71

  

28

112

  

Ca

Co

  

30

21

0.62

1

4

13

  

34

34

  

Ca

Co

  

22

26

0.46

2

6

30

  

28

56

  
  1. Odds ratio estimates (Stata v7.0):
  2. Mantel-Haenszel 4.38 (95% CI 2.85 to 6.72)
  3. Conditional MLE 4.36 (95% CI 2.85 to 6.67)
  4. Unconditional MLE 4.42 (95% CI 2.88 to 6.78)
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Epidemiologic Perspectives & Innovations

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