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Table 2 Bias (95% confidence interval) between the IO1 (initial) and IO2 (after 2 ml of waste blood) results, calculated using the Bland-Altman method

From: Intraosseous blood samples for point-of-care analysis: agreement between intraosseous and arterial analyses

Na (mmol/l)

−0.14 (−1.17; 0.88)

K (mmol/l)

−0.77 (−1.17; −0.38)

iCa (mmol/l)

0.02 (−0.01; 0.05)

pH

−0.02 (−0.03; −0.01)

BE (mmol/l)

−0.32 (−0.69; 0.04)

HCO3 (mmol/l)

0.2 (−0.15; 0.55)

pO2 (kPa)

−0.26 (−1.06; 0.54)

pCO2 (kPa)

0.25 (0.11; 0.39)

Hb (g/l)

11.52 (−3.69; 26.72)

Hct (%)

3.41 (−1.07; 7.89)

Gluc (mmol/l)

0.07 (0; 0.13)

Lact (mmol/l)

−0.05 (−0.12; 0.01)