Association between high-density lipoprotein cholesterol and lumbar bone mineral density in Chinese: a large cross-sectional study

Table 6 HDL-C and lumbar BMD were subgroup analyzed and stratified by age and BMI

Subgroup analysis	β (95%CI)	P value	P for interaction
Male
Age (year)			0.197
<= 45	-7.47 (-13.22, -1.72)	0.010^*
> 45	-7.45 (-11.13, -3.77)	< 0.001^***
BMI (kg/m²)			1.000
<= 24	-6.36 (-12.18, -0.53)	0.032^*
> 24, <= 28	-10.51 (-14.54, -6.47)	< 0.001^***
> 28	-12.14 (-19.18, -5.10)	< 0.001^***
Female
Age (year)			0.812
<= 45	-2.69 (-12.65, 7.27)	0.596
> 45	-1.30 (-6.46, 3.86)	0.621
BMI (kg/m²)			0.093
<= 24	-3.23 (-8.38, 1.91)	0.218
> 24, <= 28	-8.47 (-15.29, -1.64)	0.015^*
> 28	-1.20 (-15.07, 12.66)	0.864

Each stratification was adjusted for all factors (age, nationality, marital status, high, weight, BMI, DBP, SBP, TC, LDL-C, TG, TP, Alb, Hb, globulin, TB, direct bilirubin, ALT, AST, transglutaminase, ALP, FBG, serum calcium, serum creatinine, UA, serum phosphorus, and GH), except for the stratification factor itself
^*P < 0.05, ^**P < 0.01, ^***P < 0.001

ISSN: 1476-511X