Clinical scores | Na | Median (IQRb) | IRRc | 95% CId | P | |
---|---|---|---|---|---|---|
Intensity-based groups | ||||||
Mild | 172 | 3 (1–5) | 1 | |||
Moderate | 311 | 15 (9–22) | 4.1 | 3.6 | 4.7 | < 0.001 |
Severe | 150 | 36 (28–43) | 9.3 | 8.1 | 10.7 | < 0.001 |
Symptoms-based groups | ||||||
Mild | 252 | 4 (2–7) | 1 | |||
Severe | 381 | 25 (16–34) | 6.2 | 5.6 | 6.8 | < 0.001 |