Sample size

MD Mridu Dudeja
AS Aqsa Shaikh
FI Farzana Islam
YA Yasir Alvi
MA Mohammad Ahmad
VK Varun Kashyap
VS Vishal Singh
AR Anisur Rahman
MP Meely Panda
NS Neetu Shree
SN Shyamasree Nandy
VJ Vineet Jain
AM Amitava Mukherjee
AM Amitava Mukherjee
AM Amitava Mukherjee
AM Amitava Mukherjee
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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).

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