BMC Musculoskeletal Disorders

Table 3 Correlation between pentosidine concentrations

From: Non-invasive skin autofluorescence, blood and urine assays of the advanced glycation end product (AGE) pentosidine as an indirect indicator of AGE content in human bone

		Pentosidine concentration						Skin AGE content
		Urine		Bone		Skin		Skin AGE content
		r	p	r	p	r	p	r	p
Pentosidine concentration	Serum (total)	0.290	0.066	−0.031	0.799	0.027	0.842	0.180	0.180
	male	0.181	0.447	−0.075	0.667	−0.001	0.995	0.289	0.121
	female	0.378	0.091	−0.023	0.898	0.211	0.271	0.136	0.500
	< 50 years	1.000	< 0.001	−0.638	0.035	−0.400	0.286	−0.300	0.433
	> = 50 years	0.162	0.333	−0.027	0.840	−0.009	0.954	0.131	0.375
	Urine (total)			0.355	0.026	0.409	0.002	0.304	0.060
	male			0.379	0.051	0.229	0.306	0.038	0.878
	female			0.346	0.033	0.482	0.005	0.435	0.056
	< 50 years			−0.064	0.820	0.335	0.263	−0.200	0.747
	> = 50 years			0.122	0.399	0.252	0.112	0.205	0.245
	Bone (total)					0.422	< 0.001	0.216	0.104
	male					0.406	0.013	0.215	0.255
	female					0.544	< 0.001	0.320	0.097
	< 50 years					0.696	< 0.001	0.427	0.190
	> = 50 years					0.095	0.462	0.121	0.416
	Skin (total)							0.314	0.008
	male							0.169	0.419
	female							0.416	0.043
	< 50 years							0.733	0.025
	> = 50 years							0.119	0.466

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