Table 4.
Univariable logistic regression analyses of lg (NGAL (ng/mL)) and thoracic aorta calcification in MHD patients (n = 62)
| Characteristic | OR (95% CI) | P |
|---|---|---|
| CT | N = 43 | |
| TC | 1.124(0.213-5.946) | 0.890 |
| ARC | 5.581(1.204-25.871) | 0.028 |
| ATAC | 1.586(0.431-5.834) | 0.488 |
| AAC | 1.124(0.213-5.946) | 0.890 |
| DTAC | 1.539(0.317-7.468) | 0.593 |
| Routine chest radiography | N = 24 | |
| AAC | 0.499(0.101-2.470) | 0.394 |
| AAC by CT or chest radiography | N = 62 | |
| 0.561(0.195-1.611) | 0.283 |
Thoracic aorta calcium estimated by computed tomography (CT): calcification volume quantified by extracting the aorta calcium with density ≥ 130 HU from the volume-rendered image under the assistance of semi-automatic software; thoracic aorta was divided into 4 sites, aortic root calcium (ARC), ascending aorta calcium (ATAC), AAC(aortic arch calcium), DTAC(descending thoracic aorta calcium) and TC (total calcium) were all calculated
AAC by routine chest radiography: the circumferences of aortic arch was divided into 16 sites, the number of sectors with calcification was calculated and multiplied by 100 to express the results as a percentage