Valberg L S, Sorbie J, Ludwig J, Pelletier O
Can Med Assoc J. 1976 Mar 6;114(5):417-21.
Serum ferritin concentration was determined in 1105 Canadians aged 1 to 90 years. Geometric mean values (ng/ml) were as follows: children 1 to 4 years old, 12; children 5 to 9 years old, 15; adolescent girls, 17; adolescent boys, 18; women 20 to 39 years, 23; women 65 years and older, 52; men 20 to 39 years, 93; and men 40 and older, 92. Ranges were side in all age groups, reflecting variations in size of body iron stores. From analysis of the ferritin values it is highly probably that iron stores were greatly reduced in approximately 25% of children, 30% of adolescents, 30% of menstruating women, 60% of pregnant women and 3% of men. Iron-deficiency anemia was noted in only 2% of subjects. If "normality" requires more than small amounts of storage iron to meet physiologic demands, the study results suggest a high probability of iron deficiency in 60% of the pregnant women and in 19% of the other subjects; but if normality is defined as maintenance of adequate iron stores for erythropoiesis, the prevalence of iron deficiency was zero in the pregnant women and 2% in the other subjects.
对1105名年龄在1至90岁的加拿大人测定了血清铁蛋白浓度。几何平均值（纳克/毫升）如下：1至4岁儿童为12；5至9岁儿童为15；青春期女孩为17；青春期男孩为18；20至39岁女性为23；65岁及以上女性为52；20至39岁男性为93；40岁及以上男性为92。所有年龄组均有一定范围，反映了体内铁储存量的差异。从铁蛋白值分析来看，很可能约25%的儿童、30%的青少年、30%的育龄妇女、60%的孕妇和3%的男性体内铁储存量大幅减少。仅2%的受试者患有缺铁性贫血。如果“正常”要求储存铁超过少量以满足生理需求，研究结果表明60%的孕妇和19%的其他受试者缺铁的可能性很高；但如果将正常定义为维持足够的铁储存以进行红细胞生成，孕妇缺铁的患病率为零，其他受试者为2%。
