平滑曲线发现bri与fev 1 /fvc呈l型关联，拐点为10.3：低于该值时bri升高显著降低fev 1 /fvc（β=-0.62%），高于拐点后无统计学意义。fvc、fev 1 和pef则呈倒u型关联。 4. 亚组分析 哮喘患者中bri与fev 1 /fvc的负相关更强（交互p=0.007），提示肥胖可能加重哮喘患者的肺功能 ...

然而，FEV 1 /FVC 比值与全因死亡率之间的关系，尤其是非线性关系，在普通人群中还并不明确。 多数研究聚焦于特定人群，特别是 COPD 患者，对于普通人群的探索十分有限。因此，为了填补这一空白，广州医科大学等机构的研究人员开展了一项重要研究，相关成果发表在《BMC Pulmonary Medicine》上。

To compare FEV1 and FVC values obtained in general practice to a ‘gold standard', i.e. the same parameters obtained in a pulmonary function laboratory by an experienced lung function technician.

There is significant disparity in the ratios for postbronchodilator FEV1/FEV6 and FEV1/FVC %, and this disparity is very pronounced in women.

Results Pulmonary function tests were evaluated from 311 athletes, across 20 Olympic and 13 paralympic sports (48% female, mean +/- SD age: 25 ± 5 years). Supra-normal FEV1 and FVC values were ...

With just chest X-rays, an AI model estimated FVC and FEV1 and had “excellent agreement” when compared with spirometry results, according to results published in The Lancet Digital Health ...

The guideline-recommended FEV1:FVC cutoff of lower than 0.70 accurately diagnoses clinically significant COPD and predicts COPD-related hospitalization and death, a study found.