Urinary NAG index values in healthy newborns and children (mean + SD)
| Age (y) | Number of patients | Urinary creatinine (mmol/l) | NAG index (μmol/min/mmol creatinine) |
|---|---|---|---|
| 1–2 | 19 | 4.14 + 1.76 | 1.33 + 0.91 |
| 3–4 | 27 | 6.50 + 3.83 | 0.54 + 0.28 |
| 5–6 | 15 | 6.69 + 3.34 | 0.47 + 0.22 |
| 7–8 | 19 | 7.45 + 3.48 | 0.34 + 0.264-150 |
| 9–10 | 17 | 11.30 + 3.67 | 0.27 + 0.18 |
| 11–12 | 15 | 11.40 + 3.16 | 0.29 + 0.15 |
| 13–14 | 11 | 12.64 + 7.64 | 0.25 + 0.11 |
↵4-150 Not Gaussian distribution.