Table 5. Hemoglobin (g/dL) in healthy children along estimated population anemia rates based on p5.

Altitude	Ages (mo)	n	Mean Hb*	SD	p5 (2016)	p5	2016	[95% CI]
Low	6–23	2937	10.9	1.1	9	9	4.70%	4.00%	5.60%
	24–35	2216	11.6	1	10	10	13.90%	12.40%	15.60%
Moderate	6–23	337	12	1.2	10	9.8	4.40%	2.50%	7.60%
	24–35	269	12.7	1	11	11	9.20%	6.40%	13.10%
High	6–23	689	12.5	1.4	10.1	10.6	2.30%	1.50%	3.60%
	24–35	499	13.3	1	11.6	11.5	0.80%	0.30%	1.90%
Very high	6–23	216	13.2	1.4	10.8	10.5	5.80%	3.70%	9.10%
	24–35	181	14	1.1	12.1	12.4	9.10%	6.30%	13.00%
						Total	7.30%	6.70%	8.00%

Differences between age groups and altitude are significant at a p<0.0001 (2016 data, 11163 children from 6 to 35 months). 2017 p5 cutoffs used for percentage and CI estimation. Hb = hemoglobin, mo = months