Open Access
Table 4
Illustration of quasi-experimental design with DD specification for estimating intervention effect (∆) in a cancer study.
Pre-intervention period | Post-intervention period | DD | |
---|---|---|---|
SAT at the system level | CR10 | CR11 | |
ECA at the system level | CR00 | CR01 | |
1st difference | Δ0 = CR10 − CR00 | Δ1 = CR11 − CR01 | Δ = Δ1 − Δ0 |
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