Table 1

Stepped-wedge cluster randomised trial study design

Baseline Months 1–4Block 1 Months 5–8Block 2 Months 9–12Block 3 Months 13–16Block 4 Months 17–20Block 5 Months 21–24Block 6 Months 25–28Block 7 Months 29–32Block 8 Months 33–36
Unit pair 1CIIIIIIII
Unit pair 2CCIIIIIII
Unit pair 3CCCIIIIII
Unit pair 4CCCCIIIII
Unit pair 5CCCCCIIII
Unit pair 6CCCCCCIII
Unit pair 7CCCCCCCII
Unit pair 8CCCCCCCCI