Table 2.

Categorical comparisons of urine NGAL values on admission in Malawian trauma patients

Risk category	Laboratory-based NGALa				Spearman rank correlation
	Negative (≤50)	Low risk (51−149)	Moderate risk (150−299)	High risk (≥300)
Negative (≤50)	128	26	2	0	0.74
Low risk (51−149)	13	17	2	3
Moderate risk (150−299)	4	15	4	1
High risk (≥300)	2	8	18	22

NGA, neutrophil gelatinase-associated lipocalin.

^aTwenty participants were missing laboratory-based test results.