Table 3.
25(OH)D (nmol/L) and PTH (pg/mL) concentrations according to the different age groups (vitamin D users were excluded), percentage of individuals with secondary hyperparathyroidism (SHP) within each group and correlation between PTH and 25(OH)D evaluated by Pearson’s correlation
| Age Group (years) | n | 25(OH)D (nmol/L) | < 75.0 nmol/L (%) | PTH (pg/mL) | SHP (%) | r | p |
|---|---|---|---|---|---|---|---|
| 17–35 |
72 |
86.3 ± 34.9 |
40.3 |
26.4 ± 15.4 |
6.9 |
−0.018 |
0.876 |
| 55–60 |
13 |
62.9 ± 35.7 |
64.2 |
50.8 ± 44.5 |
28.5 |
−0.185 |
0.546 |
| 61–70 |
97 |
60.9 ± 34.6 |
50.0 |
48.7 ± 46.3 |
25.0 |
−0.417 |
< 0.001 |
| 71–80 |
218 |
49.5 ± 28.4 |
84.8 |
68.3 ± 44.9 |
46.0 |
−0.309 |
< 0.001 |
| 81–90 |
132 |
43.8 ± 29.0 |
78.4 |
80.0 ± 71.2 |
52.5 |
−0.138 |
0.139 |
| 91–100 | 13 | 30.6 ± 17.2 | 100.0 | 123.4 ± 67.7 | 58.9 | −0.398 | 0.225 |