The course of erythropoietin in patients with rheumatoid arthritis with normal and low blood-hemoglobin. A longitudinal study.
A consistent elevated level of erythropoietin was found in eight patients with R.A., who continuously for 10 years had a low hemoglobin (< 8 mmol/l) compared with nine patients with R.A., who had a normal hemoglobin (> or = 8 mmol/l) (p = 0.017). A significant inverse correlation between erythropoietin and hemoglobin (r = -0.61) was found in the low-hemoglobin group, but not in the normal-hemoglobin group. Erythropoietin was not found to be correlated to clinical variables.
Graudal
N
N
Department of Rheumatology U, Arhus Kommune Hospital, University of Arhus, Denmark.
Nielsen
O J
OJ
Galløe
A M
AM
Graudal
H N
HN
D000328:Adult; D000704:Analysis of Variance; D001172:Arthritis, Rheumatoid / Q000097:blood*; D001799:Blood Sedimentation; D004921:Erythropoietin / Q000097:blood*; D005260:Female; D006454:Hemoglobins / Q000032:analysis*; D006801:Humans; D008875:Middle Aged; D012016:Reference Values; D012044:Regression Analysis
D006454:Hemoglobins; D004921:Erythropoietin