Table 2 An overview of the Northern scoring system [19], adapted from the original publication
Radiography scoring system | Northern (1994) [19] | |
|---|---|---|
Comment | Score (points) | |
Scoring area | 4 lung quadrants | 0−4 |
Both lungs (overall severity) | 0−4 | |
Scoring | ||
No cystic fibrosis lung disease evident | Normal (0) | |
Minimal increase in linear markings and/or nodular cystic lesions up to 0.5 cm diameter | Mild (1) | |
More pronounced linear markings and/or more widespread nodular cystic lesions | Moderate (2) | |
Prominent increase in linear markings, profuse nodular cystic lesions, large areas of collapse/consolidation | Severe (3) | |
Little or no area of normal lung seen, dense infiltration | Very severe (4) | |
Overall severity | Range 0−4 | |
Total score | Maximum 20 | |