Association of bone turnover biomarkers with severe intracranial and extracranial artery stenosis in type 2 diabetes mellitus patients

Table 4 Spearman correlation coefficients for the associations between bone turnover biomarker levels and indicators of glucose and lipid metabolism

Variable	OC		CTX		PINP
	r	P value	r	P value	r	P value
FPG	-0.102	0.103	-0.134	0.031	-0.141	0.024
HbA1c	-0.012	0.846	-0.022	0.724	-0.012	0.845
INS	-0.050	0.425	-0.086	0.172	-0.031	0.628
CP	0.021	0.741	0.045	0.473	0.067	0.286
TC	0.185	0.003	0.147	0.018	0.112	0.074
TG	0.020	0.753	-0.058	0.351	-0.041	0.514
LDL-C	0.213	0.001	0.187	0.003	0.129	0.039
HDL-C	0.020	0.745	0.062	0.319	0.015	0.811

OC: Osteocalcin; CTX: C-terminal cross-linked telopeptide of type I collagen; PINP: Procollagen type I N-peptide; FPG: Fasting plasma glucose; HbA1c: Hemoglobin; INS: Insulin; CP: C-peptide; TC: Total cholesterol; TG: Triglyceride; HDL-C: High-density lipoprotein cholesterol; LDL-C: Low-density lipoprotein cholesterol.