Table 4

Haemoglobin concentration, overall anaemia prevalence, bias and concordance as determined by venous blood using the HemoCue Hb 301 and automated haematology analyser

CountryGroupHemoCue modelnVenous
HemoCue
AnaemiaVenous
analyser
AnaemiaBias g/L (precision) HemoCue analyserConcordance coefficient
Mean±SDn (%)Mean±SDn (%)Mean (95% CI)ρc (95%CI)
The GambiaPregnant women301499113.0±12.6185 (37.1)107.7±14.1272 (54.5)5.3 (−11.5 to 22.1)0.74 (0.70 to 0.77)
The GambiaChildren301371105.9±9.9237 (63.9)99.9±13.5317 (84.4)6.0 (−14.3 to 26.4)0.55 (0.49 to 0.61)
LaosChildren301129113.6±14.047 (36.4)102.3±17.485 (65.9)11.3 (−22.6 to 45.2)0.32 (0.19 to 0.44)
  • Data were adjusted for smoking and altitude, and WHO cut-offs were applied for anaemia diagnosis (children 6–59 months <110 g/L; pregnant women <110 g/L).29

  • Hb, haemoglobin.