Objective. This study describes the magnitude and characteristics of nutritional rickets and associated risk factors among children in Qatar. Subjects. A consecutive sample of 730 healthy subjects who visited the primay health care clinics were approached and 540 (73.9%) subjects gave consent. Mehods. Nutritional rickets diagnosis was based on clinical radiologic and biochemical parameters and normalization of alkaline phosphatase level after 6 weeks course of daily vitamin D therapy. Results. The study revealed that 23.9% of the studied children had nutritional rickets. The mean ± SD age of those with rickets (3.76 years ± 1.51) was slightly higher than those without rickets (3.57 years ± 1.45). Family history of vitamin D deficiency (44.2%; P = .001) and diabetes mellitus (53.5%; P = .002) were significantly higher in rachitic children than in nonrachitic children. The children with rickets spent a significantly shorter average duration (26.86 minutes ± 19.94) under the sun than those without rickets (30.59 minutes ± 15.72; P < .001). A significantly larger proportion of rachitic children was afflicted with vitamin D deficiency (75.2% versus 62.2%; P < .001), secondary hypothyroidism (100% versus 7.5%; P = .009) and muscular weakness (56.6% versus 26.3%; P < .001). Conclusion. The most important risk factors were low vitamin D and calcium intakes, lack of exposure to sunlight, prolonged breast feeding without supplementation of vitamin D.
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机译：目的。这项研究描述了卡塔尔儿童营养性ets病的严重程度，特征以及相关的危险因素。主题。连续访问了730名健康受试者，他们访问了基层医疗诊所，并有540名（73.9％）受试者表示同意。方法营养性rick病的诊断是基于每天进行维生素D治疗6周疗程后的临床放射学和生化指标以及碱性磷酸酶水平的正常化。结果。研究表明，有23.9％的被研究儿童患有营养性病。患有病的人的平均±SD年龄（3.76岁±1.51）略高于没有without病的人的平均±SD年龄（3.57岁±1.45）。精神病儿童的维生素D缺乏症家族史（44.2％; P = .001）和糖尿病（53.5％; P = .002）显着高于非精神病儿童。有病的孩子在阳光下的平均时长（26.86分钟±19.94）比没有without病的孩子（30.59分钟±15.72; P <0.001）短得多。患有精神病的儿童中，维生素D缺乏症的比例更高（75.2％对62.2％; P <.001），继发性甲状腺功能减退症（100％对7.5％; P = .009）和肌肉无力（56.6％对26.3％）; P <.001）。结论。最重要的危险因素是维生素D和钙的摄入量低，缺乏阳光照射，不补充维生素D延长母乳喂养时间。
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