Table 3.
Percentage and number of correct ratings as non-COVID-19 pneumonia for every pathogen in the non-COVID-19 group.
| Pathogen, n | Cases correctly rated as non-COVID-19 Pneumonia, % (n) |
Mean percentage of correct rating for all readers, % (SD) | ||||
|---|---|---|---|---|---|---|
| Reader 1 | Reader 2 | Reader 3 | Reader 4 | Reader 5 | ||
| Influenza virus (all included types and subtypes), 90 | 91 (82) | 90 (81) | 83 (75) | 93 (84) | 92 (83) | 90 (4) |
| Influenza A (except H1N1), 36 | 94 (34) | 92 (33) | 89 (32) | 92 (33) | 89 (32) | 91 (2) |
| Influenza A H1N1, 33 | 85 (28) | 82 (27) | 73 (24) | 90 (30) | 94 (31) | 85 (8) |
| Influenza B, 21 | 95 (20) | 100 (21) | 90 (19) | 100 (21) | 95 (20) | 96 (4) |
| Parainfluenza virus (all included types), 68* | 96 (65) | 96 (65) | 94 (64) | 96 (67) | 93 (63) | 95 (2) |
| Parainfluenza 1 or 3, 57 | 97 (55) | 97 (55) | 93 (53) | 98 (56) | 93 (53) | 95 (2) |
| Parainfluenza 2 or 4, 11 | 91 (10) | 91 (10) | 100 (11) | 100 (11) | 91 (10) | 95 (5) |
| RSV (all included types), 42 | 93 (39) | 88 (37) | 88 (37) | 100 (42) | 98 (41) | 93 (5) |
| RSV A, 12 | 100 (12) | 83 (10) | 92 (11) | 100 (12) | 100 (12) | 95 (7) |
| RSV B, 30 | 90 (27) | 90 (27) | 87 (26) | 100 (30) | 97 (29) | 93 (5) |
| CMV, 23 | 70 (16) | 96 (22) | 70 (16) | 96 (22) | 96 (22) | 85 (14) |
| HSV 1, 21 | 81 (17) | 95 (20) | 67 (14) | 90 (19) | 100 (21) | 87 (13) |
| Pneumocystis jiroveci, 32 | 78 (25) | 94 (30) | 47 (15) | 84 (27) | 100 (32) | 81 (21) |
| Legionella pneumophila, 9 | 89 (8) | 100 (9) | 67 (6) | 100 (9) | 100 (9) | 91 (14) |
| Mycoplasma pneumoniae, 9 | 89 (8) | 100 (9) | 100 (9) | 100 (9) | 100 (9) | 98 (5) |
N = absolute number of cases, SD = standard deviation, SARS-CoV-2 = severe acute respiratory syndrome coronavirus 2, RSV = respiratory syncytial virus, CMV = Cytomegalovirus, HSV 1 = herpes simplex virus 1. * two kinds of RT-PCR tests used, one for simultaneous detection of parainfluenza 1 and parainfluenza 3 genomes and one for simultaneous detection of parainfluenza 2 and parainfluenza 4 genomes.