Table 4 Association between LnBCL and lumbar bone mineral density (mg/cm²)

Per 1 μmol/L increase

−2.3 (−7.8, 3.3)

−6.1 (− 11.6, − 0.6)^*

−7.4 (− 14.0, − 0.8)^*

 Men

2.2 (− 5.6, 10.0)

− 2.3 (− 9.9, 5.3)

1.7 (− 7.6, 11.0)

   Q1

Reference

Reference

Reference

   Q2

− 6.3 (− 25.4, 12.7)

−11.4 (− 29.9, 7.1)

− 7.6 (− 26.3, 11.1)

   Q3

−22.0 (− 40.3, − 3.6)

−27.0 (− 45.0, − 9.0)

−22.6 (− 41.8, − 3.4)

   Q4

7.3 (− 12.1, 26.7)

−4.3 (− 23.2, 14.7)

3.3 (− 19.7, 26.3)

  P for trend

0.927

0.234

0.550

 Women

−10.4 (− 18.3, − 2.6)^**

−12.2 (− 20.0, − 4.3)^**

−18.7 (− 28.0, − 9.5)^***

   Q1

Reference

Reference

Reference

   Q2

−4.1 (− 22.1, 13.9)

−3.1 (− 21.0, 14.7)

− 5.8 (− 23.6, 12.1)

   Q3

4.6 (− 12.8, 22.0)

6.9 (− 10.5, 24.3)

0.9 (− 16.8, 18.6)

   Q4

− 20.6 (− 38.9, − 2.3)

− 23.6 (− 41.9, − 5.3)

− 36.5 (− 57.3, − 15.7)

  P for trend

0.101

0.062

0.009