佝偻病是我国儿科重点防治的四病之一。随着人民生活水平的提高,基层儿童保健工作的深入开展,佝偻病的发病率明显降低。重症在城镇已很少见,但在北方地区冬季轻度佝偻病仍较多见。为了解长春市婴幼儿佝偻病的发病情况,我们于2005年12月~2006年3月对朝阳区市区2岁以内的婴幼儿佝 Rickets is one of the four major diseases in our country. With the improvement of people’s living standards and the in-depth development of grass-roots child health care, the incidence of rickets is significantly reduced. Severe disease is rare in urban areas, but mild rickets in winter in the northern region are still more common. To understand the incidence of infant rickets in Changchun City, we in December 2005 ~ March 2006 on the Chaoyang District, within 2 years of age infant 佝