The CT scores of all patients with COVID-19 are shown in Table 2 and the CT scores of each lobe in the two groups are shown in Fig. 6. The CT scores of the progressive-stage group were significantly greater than those of the early-stage group (p = 0.004). In the early-stage group, 27 (79.4%) patients had CT scores in the range of 0–5, 6 (17.6%) patients had CT scores of 6–10, and only 1 patient had a CT score of 11 or more. In the progressive-stage group, 10 (35.7%) patients had CT scores in the range of 0–5, 12 (42.9%) patients had CT scores of 6–10, 3 (10.7%) patients had CT scores of 11–15, and 3 (10.7%) patients had CT scores of 15 or more.
Fig. 6 The CT score of each lobe in the early-stage group and progressive-stage group