Supplementary Electronic Material (ESM)

Series / Devices Compared / Relationship between difference and magnitude / Crude
95% LOA / Antilog LOA / % Potential Difference Antilog LOA
Natural Scale
Crude LOA
Kendall tau- b
Rank correlation
P value(significant) / Log Transformed (significant)
1 / PCX less Laboratory / 0.03 (0.7) / No / -0.22 (0.01) / Yes / -1.0 - 2.0 / 0.85 - 1.44 / 44%
2 / PCX less laboratory / 0.22 (0.001) / Yes / 0.02 (0.7) / No / -0.9 - 1.3 / 0.86 - 1.23 / 23%
Accu Chek less laboratory / 0.14 (0.05) / Yes / -0.10 (0.1) / No / -1.5 - 0.7 / 0.76 - 1.14 / 24%
Hemocue less laboratory / 0.04 (0.5) / No / -0.17 (0.01) / Significant but not apparent / -1.0 - 1.0 / 0.84 - 1.21 / 21%
3 / PCX less blood Gas / 0.39 (<0.0001) / Yes / 0.18 (0.07) / No / -0.5 - 2.1 / 0.94 - 1.33 / 33%
Accu Chek less blood gas / 0.31 (0.002) / Yes / 0.03(0.8) / No / -1.0 - 1.0 / 0.86 - 1.17 / 17%
Hemocue less blood gas / 0.23 (0.2) / No / -0.22 (0.01) / Yes / -1.1 - 2.3 / 0.85 - 1.44 / 44%

Table 1

Analysis of data on the natural and logarithmic scale to determine the relationship between difference in agreement relative to the magnitude of Glucose Value

Figure 1 Bland Altman Plot to illustrate agreement between measurements made with the Point of Care Accu Chek less Laboratory Blood Glucose Values (mmol/L) Series 2 (n=100) with the time between tests controlled to reduce the effect of glycolysis

Figure 2 Bland Altman Plot to illustrate agreement between measurements made with the Point of Care Hemocue less Laboratory Blood Glucose Values (mmol/L) Series 2 (n=100)with the time between tests controlled to reduce the effect of glycolysis

Figure 3 Bland Altman Plot to illustrate agreement between measurements made with the Point of Care PCX less Blood Gas Analyser Blood Glucose Values (mmol/L) Series 3 (n=50) with the time betwen tests controlled to reduce the effect of glycolysis

Figure 4 Bland Altman Plot to illustrate agreement between measurements made with the Point of Care Accu Chek less Blood Gas Analyser Blood Glucose Values (mmol/L) Series 3 (n=50)with the time betwen tests controlled to reduce the effect of glycolysis

Figure 5 Bland Altman Plot to illustrate agreement between measurements made with the Point of Care Hemocue less Blood Gas Analyser Blood Glucose Values (mmol/L) Series 3 (n=50)with the time betwen tests controlled to reduce the effect of glycolysis

Figure 6 Regression Analysis – The effect of Haematocrit on Blood Glucose Error (mmol/L) by comparing the Point of Care PCX less Laboratory values (n=100) Series 3

Figure 7 Regression Analysis – The effect of Haematocrit on Blood Glucose Error (mmol/L) by comparing the Point of Care Accu Chek less Laboratory values (n=100) Series 3

Figure 8 Regression Analysis – The effect of Haematocrit on Blood Glucose Error (mmol/L) by comparing the Point of Care Hemocue less Laboratory values (n=100) Series 3

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