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Table 2 Hemoglobin outlier values for non-pregnant women and children across all surveys, by exclusion cutoff

From: Characteristics of hemoglobin distributions in preschool children and non-pregnant women of reproductive age and their implications for establishing quality control criteria for hemoglobin data in field surveys: evidence from 483 surveys conducted in refugee settings worldwide

 

Hemoglobin Outlier Cut-offs

< 4.0g/dL

< 5.0 g/dL

< 6.0 g/dL

> 16.0 g/dL

> 17.0 g/dL

> 18.0 g/dL

< 4.0g/dL or > 18g/dL

Child Records (n = 187,641)

       

 Percentage of all children in a given outlier range

0.04%

0.08%

0.22%

0.07%

0.04%

0.03%

0.08%

Child Surveys (n = 461)

       

 Percentage of surveys with no outliers

93.7%

83.7%

63.1%

84.2%

92.0%

94.1%

88.3%

 Percentage of surveys with 0–1% outliers

4.6%

14.1%

29.9%

14.5%

7.2%

5.4%

9.5%

 Percentage of surveys with > 1% outliers

1.7%

2.2%

6.9%

1.3%

0.9%

0.4%

2.2%

WRA Records (n = 93,731)

       

 Percentage of all WRA in a given outlier range

0.04%

0.07%

0.13%

1.36%

0.19%

0.09%

0.14%

WRA Surveys (n = 401)

       

 Percentage of surveys with no outliers

97.3%

92.0%

82.0%

44.1%

78.8%

91.3%

90.3%

 Percentage of surveys with 0–1% outliers

2.0%

7.0%

15.2%

26.2%

16.7%

6.7%

6.5%

 Percentage of surveys with > 1% outliers

0.8%

1.0%

2.7%

29.7%

4.5%

2.0%

3.2%

  1. WRA Women of reproductive age