Br J Nutr
September 2022
Population-based surveys commonly use point-of-care (POC) methods with capillary blood samples for estimating Hb concentrations; these estimates need to be validated by comparison with reference methods using venous blood. In a cross-sectional study in 748 participants (17-86 years, 708 women, Hb: 5·1 to 18·2 g/dl) from Hyderabad, India, we validated Hb measured from a pooled capillary blood sample by a POC autoanalyser (Horiba ABX Micros 60OT, ) by comparison with venous blood Hb measured by two reference methods: POC autoanalyser () and cyanmethemoglobin method (). These comparisons also allowed estimation of blood sample-related and equipment-related differences in the Hb estimates.
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