Table 2.
Chest CT performances regarding the RT-PCR as reference standard within the different subgroups of the study. [N, N]: Numbers in brackets are 95% confidence intervals. (N, N): Numbers in parentheses are raw data used to calculate percentages
| Diagnostic performance of Chest CT scan (initial and/or repeated RT-PCR as gold) | |||||
|---|---|---|---|---|---|
| Data analyzed | Sensitivity | Specificity | Positive predictive value | Negative predictive value | |
| Overall | 88 [86, 90] (70/80) | 86 [83, 88] (361/422) | 53 [50, 56] (70/131) | 97 [95, 99] (361/371) | |
| Age | ≤ 60 | 89 [87, 90] (16/18) | 89 [88, 90] (108/121) | 55 [53, 56] (16/29) | 98 [97, 99] (108/110) |
| > 60 | 87 [86, 89] (54/62) | 84 [88,90] (108/121) | 53 [52, 55] (54/102) | 97 [95, 99] (253/261) | |
| Sex | Male | 91 [89, 92] (39.43) | 85 [83, 86] (192/225) | 54 [52, 55] (39/72) | 98 [97, 99] (92/196) |
| Female | 84 [83, 86] (31/37) | 86 [83, 89] (169/197) | 53 [52, 55] (31/59) | 97 [95, 98] (169/175) | |