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Subgroup comparison of empyema patients according to presentation pre- or post-pandemic, as well as COVID-19 status
| Pre-2020 (n = 5) | 2020 onwards (n = 11) | COVID negative (n = 12) | COVID positive (n = 4) | |
|---|---|---|---|---|
| Mean age, years | 11.4 | 9.9 | 11.0 | 8.5 |
| Male, n (%) | 3 (60) | 4 (36) | 6 (50) | 1 (25) |
| Frontal sinusitis, n (%) | 3 (60) | 8 (73) | 7 (58) | 4 (100) |
| Cerebral sinus thrombosis, n (%) | 1 (20) | 5 (45) | 3 (25) | 3 (75) |
