Serum Leptin Concentration Positively Correlates with Body Weight and Total Fat Mass in Postmenopausal Japanese Women with Osteoarthritis of the Knee

Table 3

Correlations of serum leptin level with five factors by multiple regression analysis.

	Regression coefficient	Standard error	𝑃 value
Body weight (kg)	0.331	0.123	.0098
Body mass index (kg/m^2)	−0.119	0.283	NS
Whole body BMD (g/cm^2)	1.776	4.926	NS
Total fat mass (g)	3.145𝐸−4	1.943𝐸−4	.0275
Total fat percent (%)	−0.087	0.178	NS

A multiple regression analysis was used to examine correlations of serum leptin level with five factors that had a significant correlation by a simple regression analysis. BMD: bone mineral density, NS: not significant.