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Table 2 Results of heterogeneity among included studies

From: Meta-analysis: COVID-19 diagnosis in chest CT—master key for radiologists

Variable Category # of studies Q-value Df (Q) I-squared P-value Selected model
GGO Advance stage 2 0.291 1 0.0 0.590 Fixed
Early stage 15 231.07 14 93.94 < 0.001 Random
Progress stage 4 144.53 3 97.92 < 0.001 Random
Overall 21 394.99 20 94.93 < 0.001 Random
Consolidation Advance stage 1 0.0 0 0.0 0.999 Fixed
Early stage 12 151.16 11 92.72 < 0.001 Random
Progress stage 4 81.91 3 96.33 < 0.001 Random
Overall 17 238.65 16 93.29 < 0.001 Random
GGO & Consolidation Early stage 5 2.65 4 0.0 0.618 Fixed
Progress stage 2 13.07 1 92.35 < 0.001 Random
Overall 7 81.49 6 92.63 < 0.001 Random
CP Pattern Early stage 5 2.65 4 0.0 0.618 Fixed
Progress stage 2 13.07 1 92.35 < 0.001 Random
Overall 7 81.49 6 92.63 < 0.001 Random
Lymphadenopathy Advance stage 2 1.45 1 31.21 0.228 Fixed
Early stage 6 18.56 5 73.06 0.002 Random
Progress stage 2 0.11 1 0.0 0.738 Fixed
Overall 10 31.51 9 71.44 < 0.001 Random
Pleural effusion Advance stage 1 0.0 0 0.0 0.999 Fixed
Early stage 7 14.76 6 59.34 0.022 Random
Progress stage 2 0.01 1 0.0 0.893 Fixed
Overall 10 17.98 9 50.95 0.035 Random
Linear Opacity Early stage 4 16.53 3 81.85 0.001 Random
Progress stage 3 0.04 2 0.0 0.978 Fixed
Overall 7 103.26 6 94.19 < 0.001 Random
Diagnosis test (CT scan) Advance stage 2 0.40 1 0.0 0.523 Fixed
Early stage 21 79.62 20 74.88 < 0.001 Random
Progress stage 6 8.97 5 44.29 0.110 Fixed
Overall 29 89.0 28 70.52 < 0.001 Random
Diagnosis test (PCR) Advance stage 1 0.0 0 0.0 0.999 Fixed
Early stage 6 34.73 5 85.60 < 0.001 Random
Progress stage 5 12.14 4 67.05 0.016 Random
Overall 12 177.27 11 93.79 < 0.001 Random