Fig. 1
From: Age and sex trend differences in hemoglobin levels in China: a cross-sectional study
Relationship between hemoglobin concentration and age (The horizontal coordinate represents age; the longitudinal coordinate shows residual of HGB. Solid line: without adjustment; dotted line adjustment for drink, smoke, BMI, SBP, DBP, FBG, TG, TC, HDL-C, ALT, AST, Cre. Shaded area represents confidence interval. A Relationship between hemoglobin concentration and age in males. B Relationship between hemoglobin concentration and age in females. C The curve of hemoglobin with age in hyperglycemia group of males. D The curve of hemoglobin with age in hyperglycemia group of females. E The curve of hemoglobin with age in non-hyperglycemia group of males. F The curve of hemoglobin with age in non-hyperglycemia group of females)