Table 3.

Headers: Threshold Effect Analysis of Low-Density Lipoprotein Cholesterol on Lumbar Bone Mineral Density in Other Races Using the Two-Piecewise Linear Regression Model

Lumbar Bone Mineral Density	Adjusted β (95% CI)
	P value
Other races
Fitting by the standard linear model	−0.019 (−0.035, −0.003) 0.0213
Fitting by the two-piecewise linear
Model
Inflection point	2.327
LDL cholesterol<2.327(mmol/L)	0.063 (0.008, 0.119) 0.0254
LDL cholesterol>2.327(mmol/L)	−0.038 (−0.058, −0.018) 0.0002
Log likelihood ratio	0.002

Notes: Age, gender, educational level, BMI, family income-to-poverty ratio, moderate activities, smoking at least 100 cigarettes over the life period to the point of data collection, diabetes status, hypertension status, ALT, AST, Total calcium, Blood urea nitrogen, Serum uric acid, and Serum phosphorus were adjusted.