Skip to main content
Fig. 1 | Trials

Fig. 1

From: Ferritin measurement IN Donors—Effectiveness of iron Monitoring to diminish iron deficiency and low haemoglobin in whole blood donors (FIND’EM): study protocol for a stepped wedge cluster randomised trial

Fig. 1

Study design of FIND’EM, a stepped wedge cluster randomised trial. Bars indicate the various time points at which the indicated number of blood collection clusters shifted from current practice (control) to ferritin-guided donation intervals (intervention) during the implementation period of the policy. The vertical arrows indicate the three measurement time points. a Planned timing of implementation. b Real timing of implementation

Back to article page

Trials

ISSN: 1745-6215