为了调查北京市区小儿这一特定人群佝偻病的危险因素,为综合防治小儿佝偻病、科学育儿提供理论依据。本文对经过综合诊断挑选的300名两岁以下婴幼儿做了集团性病例对照的研究。结果表明,母亲妊娠时维生素D(VD)的营养状况、出生情况、阳光照射程度、喂养情况均与小儿佝偻病的发病有关,提示预防小儿佝偻病应提倡“系统管理、早期防治、因地制宜、综合防治”的方针。 In order to investigate the risk factors of rickets in this particular population of children in Beijing, this study provides the theoretical basis for comprehensive prevention and treatment of rickets in children and scientific childcare. In this paper, we conducted a group case-control study of 300 infants under the age of two who were selected by comprehensive diagnosis. The results showed that the nutritional status, birth status, sunshine level and feeding status of vitamin D (VD) during pregnancy were all related to the incidence of pediatric rickets, suggesting that prevention of pediatric rickets should promote "systematic management, early prevention and control, Policy.