全球肺功能倡议2023和2012年螺旋计参考值之间的异常差异
Brian L Graham1, Veronica Marcoux1, Yet H Khor2
1Division of Respirology, Critical Care and Sleep Medicine, University of Saskatchewan, Saskatoon, SK.
Chest
|June 24, 2025
概括
2023年全球肺功能倡议 (GLI) 螺旋计值可能会高估成年人的肺体积,并低估儿童的肺体积,因为祖先权重. 这会影响不同年龄组的肺功能参考值.
科学领域:
- 肺部医学 肺部医学
- 生物统计学 生物统计学
- 人口健康 人口健康
背景情况:
- 全球肺功能倡议 (GLI) 于2012年根据来自健康个体的国际数据,根据四个祖先群体的性别,年龄和身高分层,建立了螺旋计参考值.
- 在2023年,为整个GLI数据库开发了一套统一的预测螺旋测量值,以独立于祖先.
研究的目的:
- 调查年龄队伍中不同比例的祖先群体对从2012年和2023年GLI方程中得出的预测螺旋测量值的影响.
- 评估在2023年GLI方程中使用逆概率权重的后果,对整个年龄范围 (3.5至95岁) 进行评估.
主要方法:
- 使用了全球肺功能倡议 (GLI) 螺旋计数据库,注意到欧洲祖先的过度代表 (77.4%).
- 在2023年GLI方程中应用反向概率权重,以近似计算四个祖先群体的平等贡献.
- 分析了这种权重策略对不同年龄组预测的螺旋计值的影响.
主要成果:
- 每个祖先群体的参与者比例在各个年龄队伍之间存在显著差异.
- 预测肺部体积最高的欧洲血统群体在年轻儿童和老年人中贡献率不成比例.
- 与GLI 2012对个人祖先群体的预测相比,GLI 2023预测的肺体积在老年人中较高,在儿童/青少年中较低.
结论:
- 在2023年GLI方程中的反向权重策略引入了系统偏差,扭曲了预测的螺旋计值.
- 这种偏见导致成年人随着年龄的增长逐渐高估预测的肺体积.
- 相反,它导致儿童和青少年随着年龄的增长逐渐低估预测的肺体积.
更多相关视频
08:44Author Spotlight: Integrating Alveolar-Capillary Reserve Measurements in Exercise Adaptation and Therapeutic Strategies
Published on: February 2, 2024
878
08:25Combining Volumetric Capnography And Barometric Plethysmography To Measure The Lung Structure-function Relationship
Published on: January 8, 2019
9.5K
相关概念视频
Pulmonary Function Tests
438
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...
438
Respiratory Volumes
1.7K
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...
1.7K
Lung Capacity
51.5K
The air in the lungs is measured in volumes and capacities. Lung volume measures reflect the amount of air taken in, released, or left over after a lung function, like a single inhalation. Lung capacity measures are sums of two or more lung volume measures.
51.5K
Respiratory Volumes and Capacities
2.8K
The respiratory system is responsible for the intake of oxygen and the expulsion of carbon dioxide from the body. Respiratory volumes describe the volume of air in the lungs at different phases of the respiratory cycle. Tidal volume is the air breathed in and out during normal, quiet breathing. Inspiratory reserve volume is the air that can be forcefully inspired beyond the tidal volume. In contrast, expiratory reserve volume refers to the air that can be expelled from the lungs after a normal...
2.8K
Respiratory Volumes and Capacities I
1.2K
Assessing the respiratory rate and rhythm for a complete minute is crucial for evaluating the breathing pattern. Even a minor increase in the patient's average respiratory rate, by as little as three to five breaths per minute, is an early and vital indicator of respiratory distress. Patients with a respiratory rate exceeding twenty-four breaths per minute require close monitoring to determine the physiological alterations. This careful observation is essential for prompt recognition and...
1.2K
Respiratory Capacities
891
Respiratory capacities are crucial indicators of lung function, representing the maximum amount of air an individual's respiratory system can handle during various breathing phases.
One key metric is the Inspiratory Capacity (IC), which represents the maximum amount of air that can be inhaled with full effort. IC is calculated by summing the tidal volume and inspiratory reserve volume, typically ranging from 2.4 to 3.6 liters.
The Functional Residual Capacity (FRC) represents the air in the...
One key metric is the Inspiratory Capacity (IC), which represents the maximum amount of air that can be inhaled with full effort. IC is calculated by summing the tidal volume and inspiratory reserve volume, typically ranging from 2.4 to 3.6 liters.
The Functional Residual Capacity (FRC) represents the air in the...
891
