Table 3.

Characteristics of patients, on the basis frequency and type of albuminuria testing within 3 yr

CharacteristicGroup 1: Has Albumin-Creatinine Ratio TestGroup 2: Has Protein-To-Creatinine Ratio TestGroup 3: Has Proteinuria Dipstick TestGroup 4: Has No Albuminuria Test
N (%)188,048 (19)16,130 (2)354,627 (36)417,494 (43)
Age, yr71 (10)69 (13)72 (11)72 (11)
Female sex (%)55486258
eGFR (ml/min per 1.73 m2)46 (11)37 (13)47 (11)47 (11)
Median (IQR) ACR/PCR/dipstick level, (mg/g, mg/g, category)21 (8–79)210 (100–670)NegativeNA
Diabetes75.5%33.8%20.1%21.2%
Hypertension84.7%79.0%71.3%63.8%
ESKD events (N)89722045797610,660
ESKD incidence, events per 1000 person-yr, 95% CI10.49 (10.27–10.71)31.95 (30.60–33.37)5.31 (5.19–5.42)5.98 (5.87–6.09)
Death incidence, events per 1000 person-yr, 95% CI60.55 (60.03–61.08)80.47 (78.35–82.65)74.93 (74.50–75.38)68.32 (67.94–68.71)
  • Group 1, available ACR test. Group 2, available PCR, but no available ACR. Group 3, available urine dipstick protein level measurement, but no available ACR or PCR. Group 4, no form of albuminuria measured. 95% CI, 95% confidence interval IQR, interquartile range; ACR, albumin-creatinine ratio; PCR, protein-to-creatinine ratio.