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. 2021 Apr 14;16(4):e0249394. doi: 10.1371/journal.pone.0249394

Table 4. Cross-tabulation of risk category and RT-PCR results (n = 1,174).

Risk category Swab RT-PCR Results
Positive n (%) All other HCW n (%) Total n (%)
High or moderate 12 (100.0) 330 (28.4) 342 (29.1)
Low 0 (0.0) 832 (71.6) 832 (70.9)
Total 12 (100.0) 1,162 (100.0) 1,174 (100.0)