Table 3

Agreement between capillary blood lactate and venous blood lactate of subgroup VL-Ref <2 mmol/L and VL-Ref ≥2 mmol/L

Group	n	Mean difference (95% CI) Lower	Limits of agreement (95% CI)
Group	n	Mean difference (95% CI) Lower	Lower upper	Upper
VL-Ref <2 mmol/L
VL-Ref/CL-Scout+	151	−0.32 (−0.47 to −0.17)	−2.13 (−2.39 to −1.88)	1.49 (1.23 to 1.74)
VL-Ref/CL-Nova	149	0.20 (0.10 to 0.31)	−1.06 (−1.24 to −0.88)	1.46 (1.29 to 1.64)
VL-Ref/VL-Scout+	151	0.16 (0.12 to 0.20)	−0.36 (−0.43 to −0.28)	0.67 (0.60 to 0.75)
VL-Ref/VL-Nova	151	0.62 (0.59 to 0.65)	0.23 (0.18 to 0.29)	1.00 (0.95 to 1.06)
VL-Ref≥2 mmol/L
VL-Ref/CL-Scout+	87	−0.04 (−0.28 to 0.19)	−2.18 (−2.58 to −1.78)	2.09 (1.70 to 2.49)
VL-Ref/CL-Nova	89	0.89 (0.72 to 1.07)	−0.71 (−1.01 to −0.42)	2.50 (2.20 to 2.79)
VL-Ref/VL-Scout+	89	0.32 (0.22 to 0.41)	−0.55 (−0.71 to −0.39)	1.18 (1.02 to 1.34)
VL-Ref/VL-Nova	89	1.18 (1.08 to 1.28)	0.25 (0.077 to 0.42)	2.11 (1.94 to 2.29)

The point estimate of the level of agreement (LOA) being within ±0.4 mmol/L from the point of the bias considered as clinically acceptable; and the point estimate of the LOA within ±0.2 mmol/L from the point of the bias considered as good agreement.