Asia Pacific journal of clinical nutrition
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Asia Pac J Clin Nutr · Jan 2012
Multicenter Study Comparative StudyValidity and correspondence of non-invasively determined hemoglobin concentrations by two trans-cutaneous digital measuring devices.
Hemoglobin (Hb) concentration is the central diagnostic indicator for anemia, including nutritional anemia. The objective of this study was to compare the Hb values determined by two portable, non-invasive devices across a wide Hb spectrum against formal laboratory measurements, and with each other. Eighty Guatemalan adults (40 highland men, 40 lowland pregnant women) provided venous blood for formal Hb colorimetric determination. ⋯ The inter-site Lin coefficient was r=0.84. Sensitivity and specificity were variable across devices, depending on Hb cut-off and measurement procedures. With Hb cut-off values of <12.0 g/dL for adult (non-pregnant women and <13.0 g/dL for adult men), the Haemospect device's performance here would provide adequate potential for screening purposes.