缺铁性贫血(IDA)是世界范围的营养缺乏病,是营养性贫血的主要类型,儿童青少年是IDA好发人群。我国儿童青少年的IDA患病率一般在20～40％,个别地区还要高。造成这种差别的原因,除了地区差异和技术原因外,还可能与季节有关。我们于1988年4月～1989年1月,对同一人群不同季节IDA患病情况进 Iron deficiency anemia (IDA) is a worldwide nutritional deficit that is a major type of nutritional anemia, with children and adolescents being IDA-prone. The prevalence of IDA in children and adolescents in our country is generally 20-40%, even higher in some areas. The reasons for this difference may be season-related, in addition to regional differences and technical reasons. We in April 1988 ~ January 1989, the same population in different seasons IDA prevalence into