Table 2.

Age-adjusted Spearman partial rank–order correlation coefficients of potential factors of bone strength with total bone area, cortical bone area, trabecular volumetric BMD and cortical volumetric BMD, according to sex

	tCSA		cCSA		vBMDt		vBMDc
	Men	Women	Men	Women	Men	Women	Men	Women
Education (years)	−0.1	−0.18 **	−016 **	−0.14 **	0	0.03	0.04	0.01
BMI (kg/m2)	0.17 **	0.36 **	0.19 **	0.35 **	0.19 **	0.18 **	−0.05	0.09
WHR (cm)	0.04	0.24 **	0.04	0.24 **	0.14 *	0.16 **	−0.1	0.08
CSMA (cm2)	0.31 **	0.58 **	0.42 **	0.55 **	0.11 *	0.14 *	0.14 *	0.12 *
Ankle extension strength (kg)	−0.04	0.15 **	−0.03	0.12 *	0.12 *	−0.09	−0.01	−0.04
Physical activity (3 levels)	0.08	0.07	0.12 *	0.1	0.13 3	0.02	0.1	0.13 *
Energy intake (kcal/day)	0.01	−0.02	0.04	−0.06	−0.04	−0.03	0.03	−0.03
Protein intake (g/day)	0.02	−0.03	−0.01	−0.08	−0.06	−0.05	0.04	−0.01
Vitamin D intake (μg/day)	0.06	−0.01	0.06	−0.02	0.02	0.02	0.07	0.02
Calcium intake (mg/day)	0.05	−0.1	0.02	−0.6	−0.07	−0.07	0.01	−0.06
Creatinine clearance (ml/min)	−0.03	0.18 **	0.02	0.14	0.05	0.02	0.07	0.10 *
Serum PTH (pmol/l)	−0.02	0.06	−0.08	−0.04	0.01	0.04	0.05	−0.17 **
Serum 25(OH)-vitamin D (nmol/l)	0.02	0.13 *	0.05	−0.05	0	0.04	0.06	0.18 **
Ca++ (mg/dl)	0.03	−0.02	−0.05	−0.05	0.1	0.01	0	−0.07
Bio-T (ng/dl)	−0.01	0.20 **	0.07	0.27 **	0.06	0.17 **	0.24 **	0.16 **
Total IGF-1 (ng/dl)	0.04	−0.03	0.09	−0.03	0.06	0.01	0.05	0.09
DHEAS (μg/dl)	0.01	0.06	0.09	0.13 *	0.01	0.11	0.07	0.12 *
IL-6 (pg/ml)	0.02	0.09	−0.04	0.11 *	−0.08	−0.02	−0.07	0.05
IL-1 beta (pg/ml)	−0.02	0.02	−0.04	0.05	0.01	0.02	0.04	0.14 **
TNF-alpha (pg/ml)	0.14 *	0.12 *	0.15 *	0.10 *	0.01	−0.05	0.08	0.03

^*P < 0.05.

^**P < 0.01.