Evaluation of the Performance of Haemoglobin Colour Scale and Comparison with HemoCue Haemoglobin Assay in Diagnosing Childhood Anaemia: A Field Validation Study

Table 1

The performance of HCS in estimating haemoglobin using HemoCue assay as standard.

Variable	Performance of HCS	Performance of HCS	p-value
	Absolute figure (n)	Percentage (%)
Anaemia detected (<11g/dl) (n=552)
HemoCue	233	44.5
HCS	262	50.0	0.25
Performance of HCS using HemoCue assay as Standard
Total sample	524
Number of anaemic children in the sample	233	44.5
Sensitivity	233/262	89.1
Specificity	261/290	90.2
PPV	261/290	90.2
NPV	261/290	90.2
Performance of Clinical detection of anaemia using HemoCue as standard
Total sample	524
Number of anaemic children in the sample	233	44.4
Sensitivity	168/233	72.1	0.03
Specificity	356/421	84.6
Positive Predictive Value	168/233	72.1
Negative Predictive Value	356/421	84.6