Association of plasma neutrophil gelatinase-associated lipocalin and thoracic aorta calcification in maintenance hemodialysis patients with and without diabetes

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
AAC by CT or chest radiography	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

ISSN: 1471-2369