Table 2

Correlations (r_s) of QUS and BMD variables with other variables

	SOS	BUA	Stiffness	FN-BMD	DF-BMD	Spine-BMD
FN-BMD, femoral neck BMD; DF-BMD, distal forearm BMD.
p<0.05; p<0.005; **p<0.0001.
Age	−0.67***	−0.63***	−0.67***	−0.64***	−0.77***	−0.54***
Height	NS	0.29*	0.25*	0.31*	0.41**	0.28*
Weight	NS	0.26*	NS	0.33*	0.47***	0.25*
Disease duration	−0.37**	−0.33*	−0.36**	−0.39**	−0.44**	NS
Steinbrocker index	−0.41**	−0.35**	−0.39**	−0.25*	−0.30*	NS
HAQ	−0.37**	−0.34*	−0.37**	−0.40***	−0.35**	−0.27*
VAS	−0.29*	−0.34*	−0.31*	−0.30*	−0.36**	NS
Swollen joints	NS	NS	NS	NS	NS	NS
Tender joints	NS	NS	NS	NS	NS	NS
Cumulative steroid dose	−0.53***	−0.48***	−0.52***	−0.41**	−0.45**	−0.26*
Current steroid dose	−0.51***	−0.47***	−0.51***	−0.40**	−0.43**	−0.25*
Quadriceps strength	0.52***	0.52***	0.53***	0.51***	0.46***	0.26*