Table 4.
The association between changes in chest CT scan findings and treatment protocol used in patients with COVID-19 according to the severity of the clinical setting
| CT-scan Findings | Treatment | Change in density and area n=55  | 
No change in density and area n=45  | 
p | 
|---|---|---|---|---|
| Total | None | 30 (54.5 %) | 0 (0.0 %) | < 0.001 C HS  | 
| Oxygen | 20 (36.4 %) | 24 (53.3 %) | ||
| CPAP and other | 5 (9.1 %) | 21 (46.7 %) | ||
| Diffused ground glass appearance n=46  | 
None | 20 (71.4 %) | 0 (0.0 %) | < 0.001 C HS  | 
| Oxygen | 7 (25.0 %) | 10 (55.6 %) | ||
| CPAP and other | 1 (3.6 %) | 8 (44.4 %) | ||
| Multiple small patches of consolidation n=32  | 
None | 10 (45.5 %) | 0 (0.0 %) | 0.031 Y S  | 
| Oxygen | 8 (36.4 %) | 5 (50.0 %) | ||
| CPAP and other | 4 (18.2 %) | 5 (50.0 %) | ||
| Single round pneumonia n=22  | 
None | 0 (0.0 %) | 0 (0.0 %) | 0.163 Y NS  | 
| Oxygen | 5 (100.0 %) | 9 (52.9 %) | ||
| CPAP and other | 0 (0.0 %) | 8 (47.1 %) | 
n: number of cases; CPAP: Continuous positive airway pressure; C: Chi-square test; Y: Yates correction; HS: highly significant at p≤0.01; S: significant at p≤0.05; NS: not significant at p>0.05