Table 2. Precision of duplicate testing for all 3 methods.

Test Type	Number of pairs	MeanDifference	95% CI	P-value*
Pima Capillary	130	33.38	14.19, 52.57	0.005
Venous	204	−6.54	−13.69, 0.61	0.099
BD FACS Venous	206	1.87	−6.77, 10.51	0.899

Using Wilcoxon Signed Rank Test;

CI  = Confidence Interval.