Table 4

Distribution of CKD by eGFR and ACR among participants aged 40+

eGFR category*Albuminuria category†
Not measured‡A1 <30 mg/gA2 30–300 mg/gA3 >300 mg/gRow
N% (95% CI)N% (95% CI)N% (95% CI)N% (95% CI)N% (95% CI)
2009–2010
G1 (≥90)64525.5 (22.6 to 28.6)86930.6 (27.7 to 33.6)1494.7 (3.7 to 6.0)240.9 (0.4 to 1.8)168761.7 (58.4 to 64.9)
G2 (60–89)2178.6 (6.5 to 11.1)67120.5 (18.1 to 23.1)1424.1 (3.1 to 5.4)230.7 (0.4 to 1.2)105333.9 (30.7 to 37.2)
G3a (45–59)150.3 (0.1 to 0.8)661.6 (1.0 to 2.6)310.9 (0.5 to 1.6)80.1 (0.0 to 0.3)1202.9 (2.1 to 4.1)
G3b (30–44)80.2 (0.1 to 0.6)230.5 (0.3 to 0.9)110.2 (0.1 to 0.5)50.1 (0.0 to 0.1)471.0 (0.6 to 1.5)
G4 (15–29)20.0 (0.0 to 0.1)20.0 (0.0 to 0.2)30.1 (0.0 to 0.5)50.2 (0.0 to 0.5)120.3 (0.1 to 0.8)
G5 (<15)20.2 (0.0 to 0.9)0020.0 (0.0 to 0.1)40.2 (0.0 to 0.8)
Column N, % (95% CI)88934.8 (31.6 to 38.0)163153.3 (50.0 to 56.5)33610.1 (8.5 to 11.9)671.9 (1.3 to 2.8)2923100 (N/A)
2016–2017
G1 (≥90)48417.9 (15.5 to 20.5)129440.2 (37.4 to 43.1)1674.8 (3.6 to 6.4)160.4 (0.2 to 0.8)196163.3 (60.3 to 66.1)
G2 (60–89)1965.2 (4.0 to 6.8)86621.3 (19.0 to 23.8)1643.8 (3.0 to 4.8)260.6 (0.4 to 1.0)125231.0 (28.3 to 33.9)
G3a (45–59)190.4 (0.2 to 0.9)1072.3 (1.6 to 3.4)360.8 (0.5 to 1.4)140.3 (0.1 to 0.6)1763.8 (2.9 to 4.9)
G3b (30–44)60.0 (0.0 to 0.1)330.5 (0.3 to 0.8)180.4 (0.2 to 0.7)80.1 (0.0 to 0.2)651.0 (0.7 to 1.4)
G4 (15–29)20.1 (0.0 to 0.7)40.2 (0.1 to 0.7)80.3 (0.1 to 0.8)60.1 (0.0 to 0.6)200.7 (0.4 to 1.4)
G5 (<15)50.2 (0.0 to 0.8)0050.1 (0.0 to 0.2)100.2 (0.1 to 0.7)
Column N, % (95% CI)71223.8 (21.1 to 26.7)230464.5 (61.4 to 67.5)39310.1 (8.6 to 11.9)751.6 (1.1 to 2.2)3484100 (N/A)
  • *eGFR (measured in mL/min/1.73 m2) determined by CKD-EPI equation. G1: normal to high eGFR; G2: mildly decreased eGFR; G3a: mildly to moderately decreased; G3b: moderately to severely decreased; G4: severely decreased and G5: kidney failure.

  • †Albuminuria determined by the urine albumin-creatinine ratio (ACR, measured in mg/g). A1 (normal): <30 mg/g; A2 (moderately increased): 30–300 mg/g; A3 (severely increased): >300 mg/g.

  • ‡Albuminuria not measured as these participants had no diabetes or hypertension.

  • .ACR, albumin-creatinine ratio; CKD-EPI, Chronic Kidney Disease Epidemiology Collaboration; eGFR, estimated glomerular filtration rate; N/A, not applicable.