Table 1.
Demographic characteristics of the studies reporting diagnostic accuracy of computed tomography(CT) and reverse transcriptase-polymerase chain reaction (RT-PCR)
| Author | Type of study | Month of publication | Sample size | COVID negative patients | Mean Age | Male | Female | Reference standard taken |
|---|---|---|---|---|---|---|---|---|
| He et al17 | Retrospective | Apr-20 | 82 | 48 | 52/37 | 49 | 33 | RT-PCR |
| Fang Y et al18 | Retrospective | Apr-20 | 51 | 0 | 45 | 29 | 22 | RT-PCR |
| Bernheim et al19 | Retrospective | Feb-20 | 121 | 0 | 45 | 61 | 60 | RT-PCR |
| Jian Wu et al20 | Retrospective | Apr-20 | 80 | 0 | 46.1 | 39 | 41 | Epidemiology/clinical/RT-PCR |
| Xie et al21 | Retrospective | Apr-20 | 19 | 0 | 33 | 8 | 11 | Clinical |
| Tao Ai et al8 | Retrospective | Feb-20 | 1014 | 399 | 51 | 467 | 547 | RT-PCR |
| Chan et al26 | Retrospective | Jan-20 | 6 | 0 | 40.6 | 3 | 4 | Clinical |
| Zhang et al29 | Retrospective | Mar-20 | 14 | 0 | 41 | 7 | 7 | RT-PCR |
| Gietema et al24 | Prospective | Apr-20 | 193 | 110 | 66 | 113 | 80 | RT-PCR |
| Long et al23 | Retrospective | May-20 | 87 | 51 | 44.8 | 20 | 16 | RT-PCR |
| Xie et al25 | Retrospective | Apr-20 | 167 | 0 | – | – | – | RT-PCR |