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. 2011 Sep;6(9):2132–2140. doi: 10.2215/CJN.07100810

Table 6a.

Prevalence ratios by level of GFR

Medical Condition n CKiD GFR Categories,a ml/min per 1.73 m2
≥50 (reference) ≥40 to <50, Estimate (95% CI) ≥30 to <40, Estimate (95% CI) <30, Estimate (95% CI)
Elevated potassium (>5.2 mEq/L) 571 1 2.09 (0.91, 4.83) 2.22 (0.97, 5.04) 4.58 (2.17, 9.63)
Acidotic (CO2 <21 mEq/L)b 586 1 1.66 (1.09, 2.52) 2.13 (1.45, 3.13) 2.73 (1.87, 3.97)
Elevated phosphatec 572 1 1.86 (0.83, 4.20) 2.61 (1.23, 5.52) 4.90 (2.45, 9.82)
Growth failure (height < 3rd percentile) 570 1 1.94 (1.06, 3.53) 2.11 (1.17, 3.79) 3.31 (1.91, 5.74)
Anemia (HGB <5th percentile or current use of ESA) 575 1 1.69 (1.15, 2.50) 2.77 (1.98, 3.88) 4.01 (2.93, 5.50)
Hypertension (BP ≥95th percentile for age and gender or self-reported hypertension and on a antihypertensive medication) 565 1 1.00 (0.80, 1.26) 1.04 (0.83, 1.29) 1.36 (1.12, 1.65)
High cholesterold 500 1 1.27 (0.83, 1.95) 2.55 (1.04, 2.31) 1.46 (0.94, 2.26)

CKiD, Chronic Kidney Disease in Children study; CI, confidence interval; HGB, hemoglobin.

a

Prevalence ratio estimation determined using Poisson regression with robust error variance.

b

On the basis of locally measured values of CO2.

c

On the basis of the phosphate norms reported in reference 29.

d

On the basis data from reference 28.