Table 3 Threshold effect analysis of serum calcium and 25(OH)D on lumbar bone mineral density by using piecewise linear regression
From: Associations between serum calcium, 25(OH)D level and bone mineral density in older adults
Adjusted β (95% CI), p value | |
|---|---|
Males | |
Serum calcium < 9.6 (mg/dL) | − 0.028 (− 0.058, 0.003), 0.0724 |
Serum calcium > 9.6 (mg/dL) | 0.025 (− 0.012, 0.061), 0.1915 |
Other race/ethnicity | |
Serum calcium < 9.4 (mg/dL) | − 0.098 (− 0.197, 0.002), 0.0564 |
Serum calcium > 9.4 (mg/dL) | 0.047 (− 0.019, 0.113), 0.1626 |
Mexican Americans | |
Serum 25(OH)D < 23(ng/mL) | − 0.0005 (− 0.0028, 0.0019), 0.6956 |
Serum 25(OH)D > 23(ng/mL) | 0.0020 (− 0.0010, 0.0050), 0.1902 |