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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