Table 2.
Characteristics | Total (N=101) | Adolescents with BMD Z-score > −2.0 (N=77) | Adolescents with BMD Z score ≤ −2.0 (N=24) | P value |
---|---|---|---|---|
25-hydroxyvitamin D level, ng/ml | 24.8 (20.0–31.4) | 24.9 (20.0–30.5) | 24.4 (17.7–31.9) | 0.618a |
Level < 20 ng/ml | 25 (24.8) | 18 (23.4) | 7 (29.2) | 0.566b |
| ||||
Parathyroid hormone level, pg/ml | 44.0 (36.4–58.7) | 44.0 (34.6–60.1) | 40.0 (29.7–52.8) | 0.271a |
Level > 65 pg/ml | 19 (18.8) | 16 (20.8) | 3 (12.5) | 0.551c |
| ||||
Alkaline phosphatase level, U/L | 198.0 (135.0–282.5) | 172.0 (130.0–278.0) | 234.5 (152.0–295.5) | 0.125a |
| ||||
Calcium level, mg/dl | 9.7 (9.5–10.0) | 9.7 (9.6–10.0) | 9.8 (9.4–10.0) | 0.718a |
| ||||
Phosphorus level, mg/dl | 4.6 (4.2–5.2) | 4.5 (4.1–5.1) | 5.1 (4.3–5.6) | 0.022a |
NOTE: Continuous data presented in median(IQR). Categorical data presented in n(%).
Mann-Whitney rank sum test,
χ2 test,
Fisher’s exact test