Table 1: High and low user group analysis of hemoglobin levels derived by POC HemoCue and automated CBC. hemoglobin measurement.

Group	# Patients	# Visits	Male/Female/ Not recorded	HemoCue Hgb (g/dL)	CBC Hgb (g/dL)	Mean Difference	95% CI
Low-User (≤ 1 visit/year)	30	41	47/49/11	8.6 (SD 2.023)	8.7 (SD 1.866)	-0.148 (p=0.730)	-1.004, 0.707
High-User (>1 visit/year)	77	612	35/34/8	9.2 (SD 2.018)	9.2 (SD1.823)	0.002 (p=0.990)	-0.214, 0.217
Overall	107	653	12/15/3	9.1 (SD 2.02)	9.2 (SD 1.83)	0.008 (p=0.939)	-0.217, 0.201