Altered Levels of Serum Zinc and Cadmium in Patients with Chronic Vesiculobullous Hand and Feet Dermatitis

Table 3

Comparison of serum Zinc and Cadmium levels between cases and noncases.

	Zinc		Cadmium
	Cases	Noncases	Cases	Noncases
	37	40	5	40
Range	17.20–57.90	42.00–102.20	1.90–2.80	BDL
Mean	39.95	67.21	2.32	NA
SD	9.43	13.77	0.38	NA
Mean difference	27.26		—
95% CI of differences	21.86–32.66		1.84–2.79
value	<0.001		—

Independent -test used.
value < 0.05 is significant.