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The first, second, and third quartile values for ED (mSv)
| Region | 1st quartile | 2nd quartile (Median) | 3rd quartile |
|---|---|---|---|
| Head, n=607 (34%) | 1.84 | 2.07 | 2.37 |
| Neck, n=149 (8%) | 1.44 | 1.76 | 2.23 |
| Chest, n=561 (32%) | 2.99 | 4.40 | 5.82 |
| Abdomen, n=464 (26%) | 4.62 | 6.85 | 9.84 |
n represents number of CT scans. Percentage represents the number of scans in that particular region within the total number of scans.
ED, effective dose.
