Table 1.
Data for the unmatched case-control study for a binary exposure and two subtypes
| E | Ē | Total | |
|---|---|---|---|
| Subtype 1 | a1 | b1 | m11 |
| Subtype 2 | a2 | b2 | m12 |
| Controls | c | d |
Notations: E is exposed group; Ē is unexposed group.
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