Table 2.
Characteristics of CT scan analyzed by AI systems among three groups
| All patients | Group 1 | Group 2 | Group 3 | p value | |
|---|---|---|---|---|---|
| n = 126 | n = 57 | n = 31 | n = 38 | ||
| Onset of symptoms to CT scan, days | 15.0 (8.3–30.0) | 18.0 (10.3–30.0) | 15.0 (7.0–30.0) | 13.0 (7.5–30.0) | 0.565 |
| Total lung volume, cm3 | 3666.6 (2904.8–4740.4) | 4032.4 (3072.2–4903.1) | 3570.6 (2858.6–4359.1) | 3495.5 (2670.8–4653.2) | 0.111 |
| Total lung lesions volume, cm3 | 167.1 (41.8–424.5) | 93.1 (25.1–275.7) | 115.5 (58.9–309.4) | 438.5 (159.9–1150.5) | < 0.001 |
| GGO volume, cm3 | 145.1 (37.8–370.7) | 69.3 (22.5–222.6) | 114.4 (56.1–271.0) | 355.0 (144.6–933.6) | < 0.001 |
| Consolidation volume, cm3 | 12.4 (2.7–69.0) | 5.0 (0.7–35.8) | 10.0 (3.4–17.5) | 73.1 (12.5–175.3) | < 0.001 |
| Percentage of total lung lesions volume, % | 4.6 (1.2–11.5) | 2.4 (0.6–5.8) | 3.8 (1.6–9.5) | 12.5 (4.1–34.1) | < 0.001 |
| Percentage of GGO volume, % | 3.9 (1.1–10.0) | 1.9 (0.5–5.2) | 3.6 (1.4–7.3) | 10.2 (4.0–26.3) | < 0.001 |
| Percentage of consolidation volume, % | 0.3 (0.1–1.8) | 0.1 (0.0–0.6) | 0.3 (0.1–0.7) | 1.8 (0.3–5.7) | < 0.001 |
Quantitative data were presented as median (IQR). No statistical differences were found between group 1 and group 2 analyzed by the Dunn-Bonferroni post hoc method