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Table 1 Stepped wedge design.

From: A randomised trial of a psychosocial intervention for cancer patients integrated into routine care: the PROMPT study (promoting optimal outcomes in mood through tailored psychosocial therapies)

  Epoch 1 Epoch 2 Epoch 3 Epoch 4 Epoch 5 Epoch 6 Epoch 7
Site 1 Control TRAINING Intervention Intervention Intervention Intervention Intervention
Site 2 Control Control TRAINING Intervention Intervention Intervention Intervention
Site 3 Control Control Control TRAINING Intervention Intervention Intervention
Site 4 Control Control Control Control TRAINING Intervention Intervention
Site 5 Control Control Control Control Control TRAINING Intervention
Week 1 10 20 30 40 50 60
  1. The Intervention is sequentially rolled-out across sites in random order over a number of time periods (Epochs).