Table 4.
Results of serological tests for SARS-CoV-2 in patients who had undergone a molecular (polymerase chain reaction – PCR) test for SARS-CoV-2 – data from 1696 municipal employees of 2 cities in Northern Portugal, assessed May 15–June 19, 2020
PCR test result | Serological tests (N = 140) | ||||
---|---|---|---|---|---|
total [n (%)] | positive (N = 23) | negative (N = 117) | |||
n (%) | 95% CI | n (%) | 95% CI | ||
Positive | 16 (11.4) | 15 (93.8) | 82.0–100 | 1 (6.3) | 0–18.1 |
Negative | 124 (88.6) | 8 (6.5) | 2.1–10.8 | 116 (93.5) | 89.2–97.9 |