Table 3.

Correlation of urine 8-OHdG with PINT scores.

	Univariate		Age and Gender Adjusted		Multivariate
	β	p	β	p	β	p
Urine 8-OHdG (ng/mg·Cr)	0.119537	0.0003	0.0946	0.0068	0.0944	0.0071

8-OHdG, 8-hydroxy-2′-deoxyguanosine; PINT, pain threshold from intraepidermal electrical stimulation.