Table 1.

Comparison of glucose calibration regression statistics for different sample media.

Sample mediumnConc. range, mmol/LSlope (95% CI), FormulaIntercept (95% CI), μArSy|x, μA
Physiologic saline301.9–29.40.482 (0.470–0.494)−0.16 (−0.35 to 0.04)0.9980.29
Synthetic ISF surrogate (11 g/L protein)292.1–30.00.461 (0.453–0.469)−0.06 (−0.19 to 0.07)0.9990.19
Synthetic ISF surrogate (31 g/L protein)292.2–30.40.446 (0.439–0.453)0.04 (−0.08 to 0.16)0.9990.18
1:2 diluted plasma ISF surrogate (35 g/L protein assumed)302.5–32.60.464 (0.458–0.470)0.03 (−0.08 to 0.14)1.0000.16