Table 3 CXRs severity score at different stages
From: Chest X-ray findings monitoring COVID-19 disease course and severity
Severity score | Initial X-ray (n = 350) | 1st follow-up X-ray (1–4 days) (n = 274) | 2nd follow-up X-ray (5–9) (n = 166) | 3rd follow-up X-ray (10–15) (n = 140) | 4th follow-up X-ray (> 15 days) (n = 135) |
|---|---|---|---|---|---|
No. (%) | No. (%) | No. (%) | No. (%) | No. (%) | |
0 | 130 (37.1) | 40 (14.6) | 29 (17.5) | 39 (27.9) | 53 (39.3) |
1 | 65 (18.6) | 49 (17.9) | 17 (10.2) | 13 (9.3) | 21 (15.6) |
2 | 92 (26.3) | 76 (27.7) | 28 (16.9) | 27 (19.3) | 26 (19.3) |
3 | 31 (8.9) | 44 (16.1) | 23 (13.9) | 14 (10.0) | 9 (6.7) |
4 | 20 (5.7) | 28 (10.2) | 15 (9.0) | 20 (14.3) | 12 (8.9) |
5 | 7 (2.0) | 15 (5.5) | 20 (12.0) | 8 (5.7) | 2 (1.5) |
6 | 4 (1.1) | 18 (6.6) | 16 (9.6) | 9 (6.4) | 9 (6.7) |
7 | 1 (0.3) | 4 (11.5) | 17 (10.2) | 8 (5.7) | 3 (2.2) |
8 | - | - | 1 (0.6) | 2 (1.4) | - |
Mean ± SD | 1.49 ± 1.53 | 2.08 ± 1.83 | 3.42 ± 2.32 | 3.60 ± 2.23 | 4.51 ± 1.61 |