. Author manuscript; available in PMC: 2019 Mar 9.

Published in final edited form as: Am J Nephrol. 2018 Mar 9;47(3):174–181. doi: 10.1159/000487715

Table 3.

Race/Ethnicity Stratified Hazard Ratios for the Association of Net Acid Excretion with Risk of Chronic Kidney Disease Progression to End Stage Renal Disease in the National Health and Nutrition Examination Survey III

	Non-Hispanic Blacks n=351, ESRD events=154 Hazard Ratio (95% Confidence Interval) per unit (mEq/d) increase in Net Acid Excretion	Non-Hispanic Whites n=772, ESRD events=94 Hazard Ratio (95% Confidence Interval) per unit (mEq/d) increase in Net Acid Excretion
Net Acid Excretion^* (unadjusted)	1.31 (1.20-1.44)	1.02 (0.97-1.06)
+ age, sex	1.26 (1.16-1.38)	1.03 (0.98-1.08)
+poverty income ratio	1.24 (1.17-1.35)	1.03 (0.98-1.08)
+body surface area, total caloric intake, serum bicarbonate, protein intake	1.20 (1.11-1.30)	1.06 (0.99-1.13)
+ diabetes, hypertension	1.17 (1.09-1.26)	1.04 (0.97-1.12)
+estimated GFR, urinary albumin-to-creatinine ratio	1.21 (1.12-1.31)	1.08 (0.96-1.20)

Model includes both linear and quadratic terms for net acid excretion.

Abbreviations: GFR, glomerular filtration rate