Table 2

 Sensitivity, specificity, and positive and negative predictive values of glucometers for detection of hypoglycaemia (< 2.6 and < 2.0 mmol/l)

Hypoglycaemia <2.6 mmol/lHypoglycaemia <2.0 mmol/l
Sensitivity (%)Specificity (%)PPV (%)NPV (%)Sensitivity (%)Specificity (%)PPV (%)NPV (%)
Phase I
    Glucotrend83.39292.682.192.361.942.996.3
    Advantage46.779.273.754.364.3755086.1
    Reflolux S10064.869.283.356.389.7
Phase II
    Elite XL65.569.282.647.46092.681.880.6
    Precision96.46081.8907588.98085.7
    Reflolux S10068.270.688.98082.8