RESULTS
A total of 181 patients, 115 (63.5%) male and 66 (36.5%) female, with a mean age of 56.4 ± 18.06 years were included in our study, and 71 (39.2%) of the patients were diagnosed with COVID-19 confirmed by positive PCR. The demographic findings of the patients are summarized in Table 1.
Chest CT was performed in 173 (95.6%) of the patients, and findings that may be compatible with COVID-19 were found in 112 (64.7%). Sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) in the diagnosis of COVID-19 infection based on thorax CT findings were 76.1%, 43.1%, 48.2% and 72.1%, respectively ( kappa coefficient: 0.176, p <0.001). In addition, in patients aged ≤57, sensitivity, specificity, PPV and NPV values of thorax CT positivity in detecting PCR positivity were 69.6%, 71.1%, 74.4% and 65.9%, respectively [kappa (ĸ) coefficient: 0.403, p <0.001] (Table 2).
The rapid antibody test performed during hospital admission was positive in 57 (31.5%) patients. The COVID-19 PCR positivity status of the patients was compared with the rapid antibody test findings. According to the rapid antibody test results, the sensitivity, specificity, PPV and NPV in detecting COVID-19 infection were 57.5%, 85.5%, 71.9% and 75.8%, respectively (ĸ: 0.448, p <0.001) (Table 3).
While the rate of hospitalization of patients with positive COVID-19 PCR was higher, the rate of intensive care admission was lower than other patients. However, 4 (5.6%) of the patients with positive PCR were followed up as intubated in the intensive care unit. In our study, the mortality rate for COVID-19 was found to be 2.8%.