Table 3. Intra-class correlation of the blood glucose level at fingertip and palm site (N=284) .

Site	Mean (SD)	Intra class correlation		Lower bound	Upper bound	P value a
Fingertip	226.08(87.86)	Single measure	0.90	0.88	0.92	0.001
Palm site	225.65(92.13)	Average measure	0.95	0.83	0.96	0.001

^a Intra class correlation.