Table 2.
CFST model for two exposures.
Type | x = 1 z = 1 | x = 0 z = 1 | x = 1 z = 0 | x = 0 z = 0 | Description | |||||
---|---|---|---|---|---|---|---|---|---|---|
1 | 1 | 1 | 1 | 1 | Doomed | |||||
2a | 1 | 1 | 1 | 0 | X causal, Z causal, joint causation by X + Z | |||||
3a | 1 | 1 | 0 | 1 | ||||||
4 | 1 | 1 | 0 | 0 | Z causal, X ineffective | |||||
5a | 1 | 0 | 1 | 1 | ||||||
6 | 1 | 0 | 1 | 0 | X causal, Z ineffective | |||||
7a | 1 | 0 | 0 | 1 | X preventive, Z preventive, X + Z antagonizes | |||||
8a | 1 | 0 | 0 | 0 | X + Z causal | |||||
9a | 0 | 1 | 1 | 1 | X + Z preventive | |||||
10a | 0 | 1 | 1 | 0 | X causal, Z causal, X + Z antagonizes | |||||
11 | 0 | 1 | 0 | 1 | X preventive, Z ineffective | |||||
12a | 0 | 1 | 0 | 0 | ||||||
13 | 0 | 0 | 1 | 1 | Z preventive, X ineffective | |||||
14a | 0 | 0 | 1 | 0 | ||||||
15a | 0 | 0 | 0 | 1 | X preventive, Z preventive, joint prevention by X + Z | |||||
16 | 0 | 0 | 0 | 0 | Immune | |||||
Outcomes are given as 0 or 1. aInterdependent types according to Greenland and Poole (1988); noninterdependent types are shaded. See also Miettinen (1982). |