Table 2 Associations of serum calcium, 25(OH)D with total bone mineral density
From: Associations between serum calcium, 25(OH)D level and bone mineral density in adolescents
Model 1 β (95% CI) | Model 2 β (95% CI) | Model 3 β (95% CI) | |
|---|---|---|---|
Serum calcium | −0.0157 (−0.0257, −0.0058) | −0.0003 (− 0.0083, 0.0077) | 0.0084 (0.0007, 0.0160) |
Serum calcium (quartile) | |||
Q1 | Reference | Reference | Reference |
Q2 | −0.0065 (− 0.0163, 0.0033) | 0.0072 (− 0.0003, 0.0148) | 0.0088 (0.0017, 0.0160) |
Q3 | 0.0008 (−0.0087, 0.0103) | 0.0136 (0.0062, 0.0211) | 0.0141 (0.0070, 0.0212) |
Q4 | −0.0144 (− 0.0233, − 0.0055) | 0.0032 (− 0.0040, 0.0103) | 0.0098 (0.0030, 0.0166) |
P for trend | 0.004 | 0.484 | 0.008 |
Serum 25(OH)D | −0.0005 (− 0.0009, − 0.0002) | 0.0001 (− 0.0003, 0.0003) | 0.0006 (0.0003, 0.0008) |
Serum 25(OH)D (quartile) | |||
Q1 | Reference | Reference | Reference |
Q2 | −0.0415 (− 0.0532, − 0.0298) | −0.0051 (− 0.0145, 0.0044) | 0.0050 (− 0.0040, 0.0139) |
Q3 | −0.0475 (− 0.0581, − 0.0369) | 0.0046 (− 0.0046, 0.0138) | 0.0166 (0.0079, 0.0254) |
Q4 | −0.0384 (− 0.0483, − 0.0284) | 0.0030 (− 0.0062, 0.0122) | 0.0202 (0.0113, 0.0291) |
P for trend | < 0.001 | 0.181 | < 0.001 |