Table 5.
Meta-analysis of imaging findings.
| CT Scan | Patterns | Pooled frequency | n/N* | Publication bias | Heterogeneity test | ||
|---|---|---|---|---|---|---|---|
| (95% CI) | (p-value) | I2 (%) | p-value | ||||
| Location of involvement | Number of affected lobe | Unaffected | 20.7 (15.1–27.6) | 33/161 | 0.18 | 0.0 | 0.57 |
| 1 lobe | 14.8 (7.4–24.0) | 52/318 | 0.22 | 73 | 0.00 | ||
| 2 lobes | 9.5 (6.5–12.8) | 30/318 | 0.32 | 0.0 | 0.50 | ||
| 3 lobes | 11.7 (7.9–14.6) | 36/318 | 0.64 | 0.0 | 0.50 | ||
| 4 lobes | 15.8 (10.3–20.7) | 49/318 | 0.90 | 40 | 0.15 | ||
| 5 lobes | 37.2 (32.0–42.3) | 118/318 | 0.50 | 30 | 0.22 | ||
| Affected lobe (s) | RUL | 56.8 (50.6–62.8) | 145/255 | 0.12 | 52 | 0.10 | |
| RML | 48.6 (42.5–54.8) | 124/255 | 0.07 | 0.0 | 0.48 | ||
| RLL | 76.2 (65.5–84.4) | 193/255 | 0.14 | 64 | 0.03 | ||
| LUL | 56.0 (47.1–64.7) | 153/255 | 0.12 | 0.0 | 0.40 | ||
| LLL | 71.8 (57.8–82.5) | 167/234 | 0.30 | 76 | 0.01 | ||
| Laterality | Uni lateral | 28.8 (16.6–45.2) | 62/205 | 0.80 | 77 | 0.01 | |
| Bi lateral | 70.6 (55.3–82.5) | 142/205 | 0.20 | 74 | 0.01 | ||
| Pattern of involvement | Pattern of involvement | No involvement | 17.2 (11.4–25.0) | 193/1,080 | 0.42 | 63.0 | 0.04 |
| Both of GGO* & consolidation | 39.0 (28.1–51.0) | 57/142 | NA | 25 | 0.24 | ||
| GGO without consolidation | 66.0 (51.1–78.0) | 846/1,365 | 0.67 | 90 | 0.00 | ||
| Consolidation without GGO | 9.4 (3.3–23.6) | 26/274 | 0.21 | 82 | 0.00 | ||
| Laterality | Uni lateral | 21.8 (12.0–36.3) | 101/507 | 0.63 | 87 | 0.00 | |
| Bi lateral | 74.8 (62.5–84.0) | 405/548 | 0.29 | 84 | 0.00 | ||
*
GGO, Ground Glass Opacities.