. Author manuscript; available in PMC: 2018 Apr 10.

Published in final edited form as: J Surg Res. 2015 Jan 9;195(1):257–262. doi: 10.1016/j.jss.2014.12.051

Table 4.

The number of readings within each LabHb range.

Hb range (g/dL)	N	Mean bias	Standard deviation	Difference SpHb – LabHb (g/dL)
Hb range (g/dL)	N	Mean bias	Standard deviation	≤1, %	≤1.5, %	≤2.0, %
<8	3	1.23	2.48	67	67	67
8–10	24	−0.06	2.98	29	38	46
10–12	26	0.7	2.1	42	50	65
12+	30	−0.47	2.64	50	73	80

Mean results for the Modified Bland–Altman plot are then included as the mean difference between the SpHb and LabHb as the mean bias. The absolute difference between the SpHb and LabHb is also included as the percentage of readings in each Hb range within ≤1, ≤1.5, and ≤2.0 g/dL.