Table 1.

Correlation coefficients between NF, FB, KB, LB angles and clinical predictors

	Age	Disease Duration	H&Y stage	LED
NF	0.175	0.197 *	0.350 ***	0.135
FB	0.246 **	0.196 *	0.492 ***	0.243 **
KB	0.359 ***	0.098	0.381 ***	0.111
LB	0.162	0.103	0.213 *	0.173

FB and KB angles increased significantly with advancing age. NF and FB angles were significantly associated with disease duration. All the measured angles increased significantly with advancing H&Y stage. There was a significant association between LED and FB, but not the other angles

^* P < 0.05, ^** P < 0.01, ^*** P < 0.001