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 |