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Table 1 Distribution of COVID-19 and H1N1 patients according to predominant pathological/radiological pattern

From: COVID-19 versus H1N1: challenges in radiological diagnosis—comparative study on 130 patients using chest HRCT

Predominant pathological/radiological pattern: COVID-19 H1N1
No % No %
[A] Parenchymal or alveolar involvement only: 64 98.5% 56 86.2%
Mild 49 (76.6%) 75.4% 41 (73.2%) 63.1%
Severe 15 (23.4%) (23.1%) 15 (26.8%) (23.1%)
[B] Airway involvement only: Not detected 6 9.2%
Mild - - 6 (100%) 9.2%
Severe - - 0 0%
[C] Mixed parenchymal and airway involvement: 1 1.5% 3 4.6%
Mild 1 (100%) 1.5% 3 (100%) 4.6%
Severe - - - -
Total 65 100% 65 100%