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Responder defined by 20% fall in FEV1 at ≤ 10mg/ml. PD20 = dose at which FEV1 falls by ≥ 20%.
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创建时间：
2016-08-12
相关数据集
Baseline characteristics.
*Median (range). †Mean (Standard Deviation). ‡Geometric Mean (Geometric Standard Deviation). **No 20% drop in FEV1 at highest concentration of Methacholine 16 mg/mL.
NIAID Data Ecosystem40
Median values of transcutaneous carbon dioxide partial pressures (PtcCO2) during the course of bronchial challenge testing with methacholine.
Data is expressed as median (interquartile range). PtcCO2 = transcutaneous blood carbon dioxide partial pressure. PRE = PtcCO2 prior to methacholine bronchial challenge, 1MIN = PtcCO2 one minute after
Figshare2015-12-02 更新10
Comparison of the Area under the Total Airway Resistance Curve (RL-area) under Different Doses of Methacholine Challenge Test (cmH2O/mL).
Comparison of the Area under the Total Airway Resistance Curve (RL-area) under Different Doses of Methacholine Challenge Test (cmH2O/mL).
Figshare2025-09-15 更新00
Characteristics of subjects before methacholine testing.
*: p < 0.05, **: p<0.001, ***: p<0.0001 between subjects with and without BHR. FEV1: Forced expiratory volume in 1 second. FVC: Forced vital capacity. FEF25-75: Mean forced expiratory flow between 25%
NIAID Data Ecosystem40
The difference (Δ) in bronchial responsiveness (BR), expressed as doubling doses of methacholine§, between the first FENO quartile (Q1) and the other quartiles (Q2–Q4) in all subjects, non-smokers and current smokers, after stratifying for atopy.
§ Slope was the outcome of the regression model and doubling doses were obtained by multiplying the regression coefficients with 1.66, as described in the Methods.* p-value for trend represents the st
Figshare2015-12-02 更新00
