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. Author manuscript; available in PMC: 2020 Jan 1.
Published in final edited form as: Am J Hematol. 2018 Oct 31;94(1):39–45. doi: 10.1002/ajh.25305

Figure 1. Participant Enrollment and Construction of Main Analysis Population.

Figure 1.

Newborns, children, and adults were registered for the study from low- (Ghana), medium- (Martinique), and high-resource testing environments. A total of 20 participants (mostly very small newborns) were initially excluded from the study due to the lack of adequate collected blood volume for confirmatory testing. Ultimately, 588 individuals were enrolled in the study, and Hb screening was conducted by comparing HemoTypeSC to three separate, clinically established reference methods (agarose gel electrophoresis, IEF, and capillary zone electrophoresis). Following a final exclusion of one specimen producing indeterminate reference method results, a total of 383 results from Ghana, 46 results from Martinique, and 158 results from the USA (total N=587) comprised the main analysis population.