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Schematic of a stepped wedge cluster randomized trial (SW-CRT) with one baseline time-point (b = 1), two clusters randomized to initiate the intervention at each step (q = 2), two time-points between each step (t = 2) and four steps (K = 4). 0 represents control and 1 intervention.
| Time | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | ||
| Cluster | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| 2 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | |
| 3 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | |
| 4 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | |
| 5 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | |
| 6 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | |
| 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | |
| 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | |
