The carbohydrate counting in adolescents with type 1 diabetes (CCAT) study.
The carbohydrate counting in adolescents with type 1 diabetes (CCAT) study.
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DOI：
10.2337/diaspect.22.1.56
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发表时间：
2009-01-01
影响因子：
--
通讯作者：
Mayer-Davis, E. J.
中科院分区：
文献类型：
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作者：
Bishop, F. K.;Maahs, D. M.;Mayer-Davis, E. J.
本文报告了一项初步研究结果，评估了1型糖尿病青少年中碳水化合物计数的准确性。这项横断面观察性研究包括48名年龄在12-18岁（平均15.21.8岁）的青少年，他们患有1型糖尿病，病程>1年（平均A1 C 8.01.0%），每天至少使用一餐胰岛素：碳水化合物（I：C）比例。青少年被要求评估青少年通常食用的32种食物中的碳水化合物含量。食物被呈现为食物模型或实际食物，其中一些物品被呈现为标准份量，一些由研究参与者自助。t检验用于评估高估或低估碳水化合物含量的显著性。对于每餐，根据常用的I：C比（1单位胰岛素/10克碳水化合物），将准确性分为准确（10克以内）、高估（>10克）或低估（>10克）。只有23%的青少年估计每日碳水化合物的真实量在10克以内，尽管选择了普通膳食。对于晚餐，准确估计碳水化合物克数的个体A1 C值最低（7.69 ± 0.82%，P=0.04）。这项初步研究提供了初步证据，表明患有1型糖尿病的青少年不能准确地计算碳水化合物。关于碳水化合物计数的准确性和影响血糖控制的其他因素，还需要进一步的数据。
This article reports pilot study results evaluating the accuracy of carbohydrate counting among adolescents with type 1 diabetes. This cross-sectional observational study included 48 adolescents ages 12-18 years (mean 15.21.8 years) with type 1 diabetes of >1 year in duration (mean A1C 8.01.0%) who used insulin:carbohydrate (I:C) ratios for at least one meal per day. The adolescents were asked to assess the amount of carbohydrate in 32 foods commonly consumed by youths. Foods were presented either as food models or as actual food, with some items presented as standard serving sizes and some self-served by study participants. T-tests were used to assess the significance of over- or underestimation of carbohydrate content. For each meal, accuracy was categorized as accurate (within 10 grams), overestimated (by >10 grams), or underestimated (by >10 grams) based on the commonly used I:C ratio of 1 unit of insulin per 10 grams of carbohydrate. Only 23% of adolescents estimated daily carbohydrate within 10 grams of the true amount despite selection of common meals. For dinner meals, individuals with accurate estimation of carbohydrate grams had the lowest A1C values (7.690.82%, P=0.04). The pilot study provides preliminary evidence that adolescents with type 1 diabetes do not accurately count carbohydrates. Further data are needed on carbohydrate counting accuracy and other factors that affect glycemic control.