Table 2.

Multivariablea linear regression analysis of index visit values of eGFR on urine protein-to-creatinine (milligrams per milligram) and urine albumin-to-creatinine (milligrams per gram), n=647

ExposurebNo.Mean eGFR (millilitre per minute per 1.73 m2) Relative to Reference95% Confidence Interval
Urine protein-to-creatinine <0.2 and urine albumin-to-creatinine <301700 (reference)
Urine protein-to-creatinine <0.2 and urine albumin-to-creatinine ≥3086−3.1−8.1 to 1.9
Urine protein-to-creatinine ≥0.2 and urine albumin-to-creatinine <3021−9.3−17.8 to −0.7
Urine protein-to-creatinine ≥0.2 and urine albumin-to-creatinine ≥30370−16.0−19.7 to −12.4
  • a Adjusted for age, sex, race, CKD cause, hypertension status, body mass index, and uric acid.

  • b For urine protein-to-creatinine the units are mg/mg; for urine albumin-to-creatinine the units are mg/g.