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An example of confounding in the source population based on a modification of Table 1 with the age stratum-specific E-D association strengthened, and the E-specific C-D association weakened
| D |
C = 1 |
C = 0 |
Collapsed |
|||
|---|---|---|---|---|---|---|
| E |
E |
E |
||||
| 1 | 0 | 1 | 0 | 1 | 0 | |
| 1 | 160 | 10 | 80 | 80 | 240 | 90 |
| 0 | 80,000 | 20,000 | 20,000 | 80,000 | 100,000 | 100,000 |
| OR = 4 | OR = 4 | OR = 2.67 | ||||
