检查螺旋计参考方程中的不一致性:一项回顾性研究
Gerald S Zavorsky1,2, Sherif Elkinany2, Abdullah Alismail2,3
1Department of Physiology and Membrane Biology, University of California, Davis, California, USA.
Physiological reports
|February 27, 2025
概括
与种族中立模型相比,基于种族的螺旋测量方程提供了更好的模型匹配,并减少了错误分类错误. 忽略种族增加了错误发现和诊断气道阻塞的负面率.
科学领域:
- 肺部医学 肺部医学
- 医学统计 医学统计
- 临床诊断 临床诊断 临床诊断
背景情况:
- 螺旋测量对于诊断肺部疾病至关重要.
- 目前的螺旋测量预测方程是关于比赛调整的辩论.
- 了解种族在这些方程中的影响对于准确的诊断至关重要.
研究的目的:
- 评估种族预测和种族中立的螺旋测量方程之间的不一致性和模型匹配.
- 评估使用种族中立方程来诊断气道阻塞和限制性模式的临床影响.
主要方法:
- 对9506名患者 (白人,黑人,西班牙裔) 的螺旋计数据的分析.
- 使用贝叶斯信息标准 (BIC) 开发最合适的预测方程.
- 作为共同变量,与没有种族的模型进行比较.
主要成果:
- 包括种族作为共同变量,显著改善了模型适配 (BIC减少≥10个单位).
- 解释气道阻塞和限制性模式的不一致性在4%至13%之间.
- 种族中立方程导致黑人和西班牙裔个人的错误发现率 (FDR) 和错误负率 (FNR) 更高.
结论:
- 在螺旋测量方程中删除种族作为共变量会增加错误分类率.
- 特定于种族的方程对于精确的螺旋测量解释至关重要.
- 不一致的临床影响强调了需要仔细开发螺旋计参考方程的必要性.
相关概念视频
Chronic Obstructive Pulmonary Disease-IV: Assessement and Diagnostic Studies
2.5K
Assessing and diagnosing Chronic Obstructive Pulmonary Disease (COPD) involves a detailed approach that includes a comprehensive review of medical history, physical examination, and a variety of diagnostic tests. This thorough evaluation is essential to ensure an accurate diagnosis and guide effective management strategies.
Medical History
Medical History
2.5K
Respiratory Volumes
1.2K
Respiratory volumes are crucial metrics, meticulously measured to quantify the air exchanged in and out of the lungs during various phases of the breathing cycle. These precise measurements are vital for assessing lung function, diagnosing respiratory conditions, and monitoring overall respiratory health. Each parameter provides specific insights into the mechanics of breathing and the functional capacity of the lungs.
Tidal Volume (TV) Tidal volume (TV) is the air inhaled or exhaled in a...
Tidal Volume (TV) Tidal volume (TV) is the air inhaled or exhaled in a...
1.2K
Physical Assessment of the Respiratory Tract II: Inspection
217
Physical assessment of the respiratory tract through inspection is a crucial step in understanding the patient's respiratory health. It provides insights into the functioning of the respiratory system, the musculoskeletal structure, and even the patient's nutritional status. This comprehensive approach involves observing several vital aspects: chest configuration, breathing patterns, respiratory rates, skin color, and use of accessory muscles.
Chest Configuration
The chest configuration...
Chest Configuration
The chest configuration...
217
Pulmonary Function Tests
289
Pulmonary Function Tests (PFTs)
Pulmonary Function Tests are crucial diagnostic tools for assessing respiratory function, particularly in patients with chronic respiratory disorders. They comprehensively evaluate lung volumes, ventilatory function, breathing mechanics, diffusion, and gas exchange. These tests help diagnose pulmonary diseases and play a significant role in monitoring disease progression, evaluating disability, and assessing response to therapy.
PFTs involve using a spirometer, a...
Pulmonary Function Tests are crucial diagnostic tools for assessing respiratory function, particularly in patients with chronic respiratory disorders. They comprehensively evaluate lung volumes, ventilatory function, breathing mechanics, diffusion, and gas exchange. These tests help diagnose pulmonary diseases and play a significant role in monitoring disease progression, evaluating disability, and assessing response to therapy.
PFTs involve using a spirometer, a...
289
Assessment of Ventilation II: Respiratory Depth and Rhythm
1.3K
Respiratory Depth
Respiratory depth measures the volume of air inhaled or exhaled during a breath. It can vary from shallow to deep and typically remains consistent when a person is at rest or asleep. Occasionally, individuals will automatically inhale deeply, known as sighing, which inflates the lungs with more air than normal breathing.
To assess respiratory depth, observe the degree of chest excursion or movement:
Respiratory depth measures the volume of air inhaled or exhaled during a breath. It can vary from shallow to deep and typically remains consistent when a person is at rest or asleep. Occasionally, individuals will automatically inhale deeply, known as sighing, which inflates the lungs with more air than normal breathing.
To assess respiratory depth, observe the degree of chest excursion or movement:
1.3K
Respiratory System Abnormal Finding I: Inspection and Percussion
195
Respiratory system abnormalities are a significant concern in healthcare due to their potential to indicate underlying severe conditions like Chronic Obstructive Pulmonary Disease (COPD), asthma, and pneumonia. These abnormalities can often be detected through physical examination methods like inspection and percussion.
Inspection Findings
During an inspection, several findings may suggest the presence of respiratory distress or disease. Pursed-lip breathing, where exhalation is slowed by...
Inspection Findings
During an inspection, several findings may suggest the presence of respiratory distress or disease. Pursed-lip breathing, where exhalation is slowed by...
195


