Oxidative Stress and Bone Resorption Interplay as a Possible Trigger for Postmenopausal Osteoporosis

Table 3

Simple and partial correlation coefficients for the association of hydroperoxides with total, lumbar spine, and total hip BMD, as well as CTX-1 in the total sample (𝑛=167).

	Simple correlation (𝑟)	Partial correlation (𝑟)
Lumbar spine BMD	−0.225^b	−0.282^b
Total hip BMD	−0.120	−0.208^a
Total body BMD	−0.180^a	−0.192^a
CTX-1	0.197^a	0.233^a

aP < 0.05, ^bP < 0.01.
Adjusting variables for partial correlation: age, years since menopause, smoking, and waist circumference.
Abbreviations: BMD: bone mass density; CTX-1: C-terminal telopeptide of type I collage.