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Table 1 Average treatment effect on the treated estimations among three groups

From: Effective methods for reactivating inactive blood donors: a stratified randomised controlled study

 Point EstimateStandard Error95% CIZP
Telephone vs. SMS0.0230.0080.007, 0.0382.8850.004
Telephone vs. Control0.0600.0090.041, 0.0786.363< 0.001
SMS vs. Control0.0040.011−0.017, 0.0250.3720.710