Based on an extensive review of the literature [8, 17], in Indian settings, we estimated the proportion of seroconversion in the general population at 25% and the proportion of seroconversion in healthcare workers at 36%. Taking significance at 5% and power at 80%, we calculated a sample size of 130, which was adjusted considering the attrition rate of 25% to 170 (S1 File).
Do you have any questions about this protocol?
Post your question to gather feedback from the community. We will also invite the authors of this article to respond.