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Table 2 Hypothetical result showing masking of risk factor in combined analysis

From: Composite endpoints for malaria case-management: not simplifying the picture?

 

True status

 

Malaria (N = 100)

No malaria (N = 900)

 

Exposed

Unexposed

Exposed

Unexposed

Correct management

37

25

225

225

Incorrect management

13

25

225

225

Total

50

50

450

450

Stratified odds ratio

2.85 (1.23, 6.60), p = 0.015

1.00 (0.77, 1.30) p = 1.0

Combined OR

1.10 (0.86, 1.41), p = 0.45