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. Author manuscript; available in PMC: 2020 Feb 1.
Published in final edited form as: Ann N Y Acad Sci. 2019 Jun 23;1450(1):190–203. doi: 10.1111/nyas.14167

Figure 3.

Figure 3.

Prevalence of anemia among preschool-aged children (6−59 months) based on different criteria to adjust for hemoglobin for altitude.* Note: *All adjustments subtracted from individual’s Hb concentration. Anemia defined as Hb < 110 g/L. **Prevalence weighted to be nationally representative, except for Bolivia, as it was not sampled to be a representative survey.

aWHO (2001) based on WHO recommended cutoffs.2

bMMWR (1989) based on the equation Hb_adjust_altitude (g/L) = [(−0.032 ×(altitude × 0.0032808) + 0.022 (altitude × 0.0032808)2) ×10].8

cProposed adjustment, Hb_adjust_altitude (g/L) = (0.0048108 × altitude) + (0.0000004 × altitude2).