Table 2. Linear relationship between PRD and SI in the DPN and healthy elderly participants. The linear relationship was not statistically significant (p=0.15).

No.	DPN		Normal
	PRD (%)	SI	PRD (%)	SI
1	40.0	0.73	93.30	0.30
2	86.80	0.63	24.50	0.30
3	10.20	0.76	89.0	0.43
4	89.0	0.66	82.40	0.43
5	12.20	0.56	76.70	0.40
6	33.20	1.13	90.50	0.40
7	52.0	0.33	65.30	0.35
8	49.30	0.43	76.30	0.50

PRD: paired reflex depression; SI: stability index; DPN: diabetic peripheral neuropathy