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Fig. 1 | BMC Medical Research Methodology

Fig. 1

From: Accounting for confounding by time, early intervention adoption, and time-varying effect modification in the design and analysis of stepped-wedge designs: application to a proposed study design to reduce opioid-related mortality

Fig. 1

Proposed SWD for 18 South Carolina communities. ‘C’ indicates cluster receives control and ‘I’ indicates cluster receives intervention. All clusters are in the control condition during the pre-intervention phase (months 0 through 6). During the roll-out phase (months 6 through 33), two clusters crossover to the intervention condition at the beginning of each time period. In the follow-up phase (months 33-39), all clusters receive the intervention

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BMC Medical Research Methodology

ISSN: 1471-2288

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