Table 3.

Median and interquartile range of total and free NNAL per mg Cr, stratified by race/ethnicity

NMedianInterquartile rangeP when compared with whites
Total NNAL/creatinine
 African Americans3571.971.28–2.91<0.001
 Native Hawaiians3251.871.26–2.74<0.001
 Whites4342.451.57–3.62
 Latinos4421.771.02–2.78<0.001
 Japanese Americans6941.651.06–2.49<0.001
P<0.001
Free NNAL/creatinine
 African Americans3450.4850.310–0.739<0.001
 Native Hawaiians3150.5930.359–0.8620.0067
 Whites4190.6760.427–1.00
 Latinos4210.5150.304–0.804<0.001
 Japanese Americans6720.5450.348–0.802<0.001
P<0.001

NOTE: P value using the Wilcoxon–Mann–Whitney test.