使用易于获得的临床数据开发和验证糖尿病前期和糖尿病多变量预测模型
medRxiv : the preprint server for health sciences
|February 24, 2025
概括
容易获得的临床数据可以改善糖尿病前期和糖尿病诊断,而不仅仅是血红蛋白A1c测试. 使用生命体,禁食实验室和健康因素的新模型在识别这些条件时显示出更高的准确性.
科学领域:
- 内分泌学 在内分泌学.
- 公共卫生 公共卫生
- 医疗信息学 医疗信息学
背景情况:
- 在美国,糖尿病前期和糖尿病的患病率正在上升,通常与其他慢性疾病一起.
- 血红蛋白A1c是常见的诊断工具,但可能与同时存在的疾病不准确.
- 需要改善糖尿病前期和糖尿病的诊断方法.
研究的目的:
- 评估是否随时可用的临床数据可以提高糖尿病前期和糖尿病诊断与单独的血红蛋白A1c相比.
- 使用可访问的临床信息开发和验证预测模型.
主要方法:
- 从美国国家健康和营养检查调查 (2005-2016) 中对13800名参与者的横截面分析.
- 使用机器学习模型 (梯度增强决策树) 来估计2小时的葡萄糖水平.
- 模型性能 (AUROC,预测值,净益) 与血红蛋白A1c和空腹血葡萄糖的比较.
主要成果:
- 这种20个特征的预测模型在诊断糖尿病前期和糖尿病时显著超过了血红蛋白A1c和禁食血葡萄糖.
- 接收器操作曲线下的面积 (AUROC) 从0.66/0.71提高到0.77对于糖尿病前期和0.87/0.88到0.91对于糖尿病.
- 关键特征包括标准生命体,禁食/非禁食实验室 (葡萄糖,胰岛素,脂质,肝功能,功能) 和贫困率.
结论:
- 将容易获取的临床数据纳入电子病历可以识别未被诊断的糖尿病前期和糖尿病患者.
- 这种方法可能会导致更早的诊断和干预,从而有可能预防严重的并发症.
- 这些发现强调了多变量预测模型在改善糖尿病查方面的实用性.
相关概念视频
Diabetes Mellitus: Type 2 and Gestational
Type 2 diabetes, characterized by insulin resistance, arises when the insulin receptors on cells lose responsiveness to insulin, diminishing the cell's capacity to take up glucose, resulting in elevated blood glucose levels. To receive a diagnosis of Type 2 diabetes, a series of blood glucose tests are necessary to assess whether the blood glucose falls within normal parameters. If the result is out of the normal range, a patient may be diagnosed as prediabetic or diabetic, depending on the...
Diabetes: Symptoms, Diagnosis, and Complications
For most patients, experiencing several weeks of polyuria, polydipsia, fatigue, and significant weight loss may indicate the presence of diabetes. Furthermore, adults displaying the phenotypic appearance of type 2 diabetes (particularly those who are obese and not initially insulin-requiring), may have islet cell autoantibodies, suggesting autoimmune-mediated β cell destruction and a diagnosis of latent autoimmune diabetes of adults (LADA). The categorization of glucose homeostasis is based on...
Diabetes Mellitus: Introduction
Diabetes mellitus consists of chronic metabolic disorders characterized by persistent hyperglycemia. This elevated blood glucose results from defects in insulin secretion, impaired insulin action, or both. Insulin, produced by pancreatic β-cells, is essential for maintaining glucose homeostasis by facilitating cellular glucose uptake for energy or storage. Disruptions in insulin production or function lead to glucose accumulation in the bloodstream, causing the clinical features and long-term...
Type II Diabetes I: Introduction
Type 2 diabetes mellitus (T2DM) is a chronic metabolic disorder characterized by insulin resistance, in which target tissues such as the liver, muscle, and adipose tissue respond poorly to insulin. It is also associated with inadequate compensatory insulin secretion, where pancreatic β-cells fail to produce sufficient insulin. Together, these abnormalities lead to persistent hyperglycemia.EtiologyT2DM develops through a complex interaction of genetic predisposition and environmental or...
Type II Diabetes II: Pathophysiology
PathophysiologyType 2 diabetes mellitus (T2DM ) is a chronic metabolic disorder characterized by insulin resistance and progressive pancreatic β-cell dysfunction, leading to impaired glucose homeostasis. It results from interactions among genetic predisposition, environmental factors, and metabolic stressors, such as overnutrition and a sedentary lifestyle.Insulin Resistance and Glucose DysregulationEarly T2DM involves insulin resistance in skeletal muscle, adipose tissue, and the liver.
Type II Diabetes Mellitus III: Clinical Manifestations and Diagnosis
Type 2 diabetes mellitus develops gradually and is often asymptomatic in early stages.Clinical ManifestationsWhen symptoms appear, they include fatigue, blurred vision, pruritus, delayed wound healing, and recurrent infections, particularly candidal infections. Peripheral neuropathy may present as numbness or tingling in the extremities. Classic hyperglycemia symptoms—polyuria, polydipsia, and polyphagia—are less common. Most patients are overweight and frequently have associated hypertension...


