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Plasma pediatric creatinine reference intervals (2.5th to 97.5th percentiles)

Plasma pediatric creatinine reference intervals (2.5th to 97.5th percentiles)
Enzymatic creatinine Jaffe creatinine
Age group mg/dL micromol/L Age group mg/dL micromol/L
0 to 14 days 0.32 to 0.92 28 to 81 0 to 14 days 0.42 to 1.05 37 to 93
15 days to <2 years 0.10 to 0.36 9 to 32 15 days to <1 year 0.31 to 0.53 27 to 47
2 to <5 years 0.20 to 0.43 18 to 38 1 to <4 years 0.39 to 0.55 34 to 49
5 to <12 years 0.31 to 0.61 27 to 54 4 to <7 years 0.44 to 0.65 39 to 57
12 to <15 years 0.45 to 0.81 40 to 72 7 to <12 years 0.52 to 0.69 46 to 61
15 to 19 years (male) 0.62 to 1.08 55 to 95 12 to 15 years 0.57 to 0.80 50 to 71
15 to <19 years (female) 0.49 to 0.84 43.3 to 74 15 to <17 years (male) 0.65 to 1.04 57 to 92
      15 to <17 years (female) 0.59 to 0.86 52 to 76
      17 to <19 years (male) 0.69 to 1.10 61 to 97
      17 to <19 years (female) 0.60 to 0.88 53 to 78
Creatinine pediatric reference values measured by two different laboratory assays: enzymatic reaction by isotope dilution mass spectrometry (IDMS) and the Jaffe reaction. Creatinine values are based on age; and for adolescent patients, reference values are also based on sex.
Data from: Colantonio DA, Kyriakopoulou L, Chan MK, et al. Closing the gaps in pediatric laboratory reference intervals: a CALIPER database of 40 biochemical markers in a healthy and multiethnic population of children. Clin Chem 2012; 58:854.
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