Table 1.
Anthropometry and biochemical local reference data used to create age appropriate Z-scores. Data are presented as mean (SD) or geometric mean (− 1SD, + 1SD) for skewed variables*.
| Reference data in age bands (mean SD) | |||||
|---|---|---|---|---|---|
| Variable | 2.0–5.9 y (n = 10) |
6.0–9.9 y (n = 10) |
10.0–13.9 y (n = 10) |
14.0–17.9 y (n = 10) |
18.0–47.0 y (n = 52) |
| Ht (cm) | 95.3 (10.3) | 121.5 (9.8) | 146.6 (9.2) | 156.6 (9.4) | 158.9 (9.7) |
| Wt (kg) | 13.2 (2.6) | 20.6 (3.6) | 34.5 (7.2) | 42.9 (7.9) | 58.7 (14.9) |
| 25OHD (nmol/L) | 56.3 (18.9) | 62.4 (14.7) | 55.4 (15.8) | 48.3 (13.7) | 63.9 (12.0) |
| TALP (U/L) | 299 (65) | 325 (67) | 298 (86) | 298 (135) | 125 (58) |
| 1,25(OH)2D (pmol/L) | 279 (64) | 234 (48) | 254 (81) | 263 (86) | 241 (103) |
| PTH*(pg/mL) | 39 (24, 65) | 40 (27, 58) | 53 (32, 88) | 60 (39, 92) | 59 (26, 134) |
| P (mmol/L) | 1.59 (0.17) | 1.57 (0.19) | 1.40 (0.19) | 1.40 (0.22) | 1.12 (0.18) |
| Ca (mmol/L) | 2.38 (0.08) | 2.42 (0.08) | 2.36 (0.09) | 2.37 (0.09) | 2.24 (0.14) |
| FGF23*(RU/mL) | 83 (37, 188) | 52 (31, 87) | 38 (23, 62) | 45 (21, 96) | 31 (19, 189) |
| TmP:GFR (mmol/L) | 1.71 (0.27) | 1.82 (0.26) | 1.64 (0.25) | 1.63 (0.29) | 1.17 (0.24) |
| uCa:uCr*(mol/mol) | 0.11 (0.03, 0.40) | 0.08 (0.02, 0.27) | 0.09 (0.04, 0.22) | 0.08 (0.02, 0.24) | 0.07 (0.02, 0.22) |