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

Table 6b.

Prevalence ratios by level of GFR, excluding medication use

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) 566 1 2.09 (0.91, 4.83) 2.21 (0.97, 5.01) 4.69 (2.23, 9.86)
Acidotic (CO2 <21 mEq/L)b 415 1 1.80 (1.12, 2.89) 2.25 (1.41, 3.61) 2.73 (1.72, 4.33)
Elevated phosphatec 455 1 1.57 (0.64, 3.84) 2.02 (0.85, 4.81) 5.68 (2.65, 12.14)
Growth failure (height <3rd percentile) 502 1 1.81 (0.93, 3.53) 2.27 (1.20, 4.33) 2.62 (1.36, 5.05)
Anemia (excluding ESA use only) 495 1 1.68 (1.07, 2.66) 2.66 (1.76, 4.00) 3.85 (2.59, 5.72)
Anemia (excluding ESA and iron use) 384 1 1.83 (1.05, 3.17) 2.79 (1.67, 4.67) 4.10 (2.51, 6.70)
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 489 1 1.47 (0.96, 2.26) 1.77 (1.18, 2.64) 1.55 (0.98, 2.45)

CKiD, Chronic Kidney Disease in Children study; CI, confidence interval; ESA, erythropoiesis stimulating agent.

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.