Urinary biomarkers of kidney injury are associated with all-cause mortality in the Women's Interagency HIV Study (WIHS)

C. A. Peralta, R. Scherzer, C. Grunfeld, A. Abraham, P. C. Tien, P. Devarajan, M. Bennett, A. W. Butch, K. Anastos, M. H. Cohen, M. Nowicki, A. Sharma, M. A. Young, M. J. Sarnak, C. R. Parikh, M. G. Shlipak

Research output: Contribution to journalArticlepeer-review

34 Scopus citations


Objectives: Chronic kidney disease (CKD) is common in HIV-infected individuals, and is associated with mortality in both the HIV-infected and general populations. Urinary markers of tubular injury have been associated with future kidney disease risk, but associations with mortality are unknown. Methods: We evaluated the associations of urinary interleukin-18 (IL-18), liver fatty acid binding protein (L-FABP), kidney injury molecule-1 (KIM-1), neutrophil gelatinase-associated lipocalin (NGAL) and the albumin-to-creatinine ratio (ACR) with 10-year, all-cause death in 908 HIV-infected women. Serum cystatin C was used to estimate the glomerular filtration rate (eGFRcys). Results: There were 201 deaths during 9269 person-years of follow-up. After demographic adjustment, compared with the lowest tertile, the highest tertiles of IL-18 [hazard ratio (HR) 2.54; 95% confidence interval (CI) 1.75-3.68], KIM-1 (HR 2.04; 95% CI 1.44-2.89), NGAL (HR 1.50; 95% CI 1.05-2.14) and ACR (HR 1.63; 95% CI 1.13-2.36) were associated with higher mortality. After multivariable adjustment including adjustment for eGFRcys, only the highest tertiles of IL-18 (HR 1.88; 95% CI 1.29-2.74) and ACR (HR 1.46; 95% CI 1.01-2.12) remained independently associated with mortality. Findings for KIM-1 were borderline (HR 1.41; 95% CI 0.99-2.02). We found a J-shaped association between L-FABP and mortality. Compared with persons in the lowest tertile, the HR for the middle tertile of L-FABP was 0.67 (95% CI 0.46-0.98) after adjustment. Associations were stronger when IL-18, ACR and L-FABP were simultaneously included in models. Conclusions: Among HIV-infected women, some urinary markers of tubular injury are associated with mortality risk, independently of eGFRcys and ACR. These markers represent potential tools with which to identify early kidney injury in persons with HIV infection.

Original languageEnglish (US)
Pages (from-to)291-300
Number of pages10
JournalHIV Medicine
Issue number5
StatePublished - May 2014
Externally publishedYes


  • HIV
  • Interleukin-18
  • Kidney injury molecule-1
  • Liver fatty acid binding protein
  • Neutrophil gelatinase-associated lipocalin
  • Urinary biomarkers

ASJC Scopus subject areas

  • Health Policy
  • Infectious Diseases
  • Pharmacology (medical)


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