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目的探讨广东省居民铁营养状况。方法运用4阶段随机整群抽样方法,抽取8个县(区)、24个乡镇(街道)、48个村(居委)6921位居民进行调查并采血,用放射免疫法测血清铁蛋白(SF)含量,用二项分类logistic回归分析影响因素。结果此次调查样本人群SF均值为(87.15±77.19)μg/L,男性(102.61±88.32)μg/L,女性(71.58±60.18)μg/L;成人(114.81±99.13)μg/L,儿童(64.62±40.98)μg/L。成人的明显高于儿童(t=28.43,P<0.001),SF均值随年龄增加而增高。在0～15岁之间,男、女性SF均值变化基本相同(t=0.108,P=0.914);15岁以后,男性SF均值明显高于女性(t=22.93,P<0.001)。样本人群中86.6%的SF值正常,3.1%的低于正常值,10.2%的高于正常值。随着年龄的增加人群SF过高发生率也增加。男性SF过高发生率明显高于女性,女性SF过低发生率明显高于男性。结论广东省人群铁营养状况不容乐观,值得关注的是学龄前儿童和20～50岁年龄组的女性SF过低发生率较高,需要采取积极措施改善人群铁营养状况。
Objective To investigate the status of iron nutrition in Guangdong residents. Methods A total of 6921 inhabitants from 8 counties (districts), 24 towns (streets) and 48 villages (neighborhoods) were investigated by 4-stage random cluster sampling method. Blood samples were collected and serum ferritin was detected by radioimmunoassay ) Content, using binomial logistic regression analysis of influencing factors. Results The average SF of the surveyed sample population was (87.15 ± 77.19) μg / L, male (102.61 ± 88.32) μg / L and female (71.58 ± 60.18) μg / L; 64.62 ± 40.98) μg / L. Adults were significantly higher than children (t = 28.43, P <0.001), SF mean increased with age. In the age group of 0-15 years old, the average change of SF in males and females was basically the same (t = 0.108, P = 0.914). After 15 years of age, the mean value of SF in males was significantly higher than that in females (t = 22.93, P <0.001). 86.6% of the sample population had normal SF values, 3.1% lower than normal, and 10.2% higher than normal. With increasing age, the incidence of over-high population SF also increased. The prevalence of male SF was significantly higher than that of female, and the incidence of female SF was significantly lower than that of male. Conclusions Iron nutrition in Guangdong population is not optimistic. It is noteworthy that pre-school children and women aged 20-50 years have a high prevalence of excessively low SF, and they need to take active measures to improve their iron nutrition status.