Table 2. Bone turnover markers and metabolic characteristics in the study subjects.

Biomarker	All		Males		Females		P
	Mean	SD	Mean	SD	Mean	SD
Osteocalcin, µg/L	20.5	(9.0)	20.2	(8.8)	21.0	(9.3)	0.59
P1NP, µg/L	50.1	(18.3)	51.2	(15.2)	49.3	(20.9)	0.54
ICTP, µg/L	3.4	(0.9)	3.1	(0.7)	3.7	(0.9)	0.001
NTX, nmol/nmol Crea	48.9	(28.4)	53.0	(33.6)	45.7	(23.0)	0.16
Triglycerides, mmol/L	1.0	(0.5)	1.1	(0.6)	0.8	(0.4)	<0.001
HDL cholesterol, mmol/L	1.6	(0.4)	1.4	(0.3)	1.7	(0.4)	<0.001
Glucose, mmol/L	5.2	(0.5)	5.4	(0.6)	5.0	(0.4)	<0.001
Insulin, mU/L	5.7	(3.0)	6.1	(3.6)	5.3	(2.4)	0.10

Abbreviations: P1NP  =  procollagen type 1 N-terminal propeptide; ICTP  =  carboxy-terminal telopeptide of type I collagen; NTX  =  N-terminal telopeptide urine collagen I aminoterminal telopeptide.

Values are given as mean (standard deviation). P values refer to the difference between males and females.