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Table 1 Stepped wedge trial design

From: Increasing the uptake of vitamin D supplement use in Australian residential aged care facilities: results from the vitamin D implementation (ViDAus) study

Month Wedge 1 Facilities Wedge 2 Facilities
0 Medication Chart Audit 1
1–6 Intervention Control
6 Medication Chart Audit 2
7–12 Intervention Intervention
12 Medication Chart Audit 3
13–18 Sustainment Intervention
18 Medication Chart Audit 4