Table 1.
Parameters and frequency of nutritional assessment in children with CKD stages 3b–5D#. Anthropometric measurements
| Measure | Age 0–1 year∞ Minimum interval (weeks) |
Age 1–3 years Minimum interval (months) |
Age > 3 years Minimum interval (months) |
|||
|---|---|---|---|---|---|---|
| CKD 3b–5 | CKD 5D | CKD 3b–5 | CKD 5D | CKD 3b–5 | CKD 5D | |
| Height or length for age (centile or SDS) | 6 | 2–4 | 2 | 1 | 3 | 3 |
| Height or length (centile or SDS) | 8 | 4 | 3 | 2 | 6 | 6 |
| Height velocity for age (SDS) | N/A | N/A | 3 | 2 | 6 | 6 |
| Estimated euvolemic weight and weight for age (centile or SDS) | 6 | 4 | 2 | 1 | 3 | 3 |
| BMI for height age (centile or SDS) | N/A | N/A | 2* | 1* | 3 | 3 |
| Weight for length* (centile or SDS) | 6 | 6 | 2* | 1* | N/A | N/A |
| Head circumference for age (centile or SDS) | 6 | 4 | 2 | 2 | N/A | N/A |
#Earlier stages of CKD and other kidney diseases are not addressed in this table, as clinical conditions can vary and physician discretion is required. Further details are addressed in [2]
*Weight for length should be used for children < 2 years of age or up to 3 years if accurate standing height measurement is not possible
∞Infants and toddlers cannot be categorized with the stage of CKD as there may be spontaneous improvement in kidney function up to 2 years of age. A suggested method to characterize the stage of CKD in this age group is to use the KDIGO 2012 clinical practice guideline for the evaluation and management of chronic kidney disease, substituting a GFR > 1 but ≤ 2 SDS below the mean for moderate reduced GFR (stages 3–4) and severely reduced GFR > 2 SDS below the mean for stage 5 [3]