Table 1 Anemia envelope definitions,... | American Society of Hematology

Table 1

Anemia envelope definitions, anemia DWs, and cause-specific attribution strategy

Severity of anemia (HgB, g/L)
	Mild	Moderate	Severe
Age 5+ y
Males	120-129	90-119	60-89
Females, non-pregnant	110-119	80-109	50-79
Females, pregnant	100-109	70-99	40-69
Age <5 y
Males	110-119	80-109	50-79
Females	110-119	80-109	50-79
DW	0.0044	0.0580	0.1644
95% UI	0.0030-0.0062	0.0453-0.0727	0.1327-0.2019

Severity of anemia (HgB, g/L)
	Mild	Moderate	Severe
Age 5+ y
Males	120-129	90-119	60-89
Females, non-pregnant	110-119	80-109	50-79
Females, pregnant	100-109	70-99	40-69
Age <5 y
Males	110-119	80-109	50-79
Females	110-119	80-109	50-79
DW	0.0044	0.0580	0.1644
95% UI	0.0030-0.0062	0.0453-0.0727	0.1327-0.2019

Severity definitions and corresponding DWs (from IHME Disability Weights Survey) used to calculate GBD 2010 anemia envelope. We calculated anemia as a total “envelope” and hierarchically divided the envelope among contributing etiologies in mutually exclusive fashion for each country, age group, sex, and year. HgB thresholds for 5 different groups were the same as those used in GBD 2000 and adapted from WHO guideline definitions of anemia.^21,22 DWs with uncertainty intervals for each severity of anemia were obtained via the IHME Disability Weights Survey.²⁴

HgB, hemoglobin B; UI, uncertainty interval.

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