Urinary NGAL Ratio Is Not a Sensitive Biomarker for Monitoring Acute Tubular Injury in Kidney Transplant Patients: NGAL and ATI in Renal Transplant Patients

Table 4

Correlation of uNGAL ratios to the different donor/recipient gender combinations.

Gender combinations; donor/recipient	NGAL in 6-week samples^a (ng/g)	NGAL in 6-month samples^b (ng/g)
Male/male	14,259	5,670
	𝑛=28	𝑛=20
Male/female	37,717^c	32,893^e
	𝑛=19	𝑛=15
Female/female	37,993^d	24,050^e
	𝑛=11	𝑛=13
Female/male	21,654	18,454^f
	𝑛=26	𝑛=24

Urinary NGAL/creatinine ratios at 6 weeks and 6 months after transplantation according to the four combinations of donor and recipient gender. At both time points, differences between the four combinations were significant (^a𝑃=0.041 and ^b𝑃<0.001; the Kruskal Wallis test). Posttesting identified differences to the male donor/male recipient group (^c𝑃=0.035; ^d𝑃=0.017; ^e𝑃<0.001; ^f𝑃=0.002).