"Hemoglobin levels" refers to the amount of a protein called hemoglobin in one's blood, which carries oxygen throughout the body. It is a measure of how much hemoglobin is present in a person's bloodstream. Full definition
Average fetal hemoglobin levels in patients rose from 9.7 percent prior to treatment to 21.7 percent, a level that was sustained for the four years covered in this analysis. (stjude.org)
Mice that completely lack BCL11A die soon after they are born, but when the team disabled BCL11A only in the red blood cells, the animals developed normally and produced blood with fetal hemoglobin levels at nearly 30 %. (sciencemag.org)
The odds of being hospitalized for pain or any reason were about doubled for sickle cell patients with fetal hemoglobin levels of 20 percent or less. (stjude.org)