In the Lung Health Study, [10] the most significant results were obtained in middle-aged patients (mean age of 48 years), with mild or moderate COPD (mean post-bronchodilator FEV1 of 78%), most of ...

Vitamin D deficiency is associated with worse lung function and more rapid decline in lung function over time in smokers, suggesting that vitamin D may have a protective effect against the effects ...

Long-term light smokers appear to be at greater risk for lung function decline, emphysema and obstructive lung disease than heavy smokers who quit, according to new research presented at the ATS ...

918 subjects were obstructive according to the fixed FEV1/FVC cutpoint; 389 (42%) of them were non-obstructive according to the LLN cutpoint. In smokers, postbronchodilator FEV1 decline was 21 (SE ...

Current smokers with vitamin D deficiency had significantly lower lung function (forced expiratory volume in one second [FEV]), forced vital capacity [FVC], and FEV1/FVC).

Your FEV1 result can be used to determine how severe your COPD is. Learn more about how to interpret your FEV1 reading.

Millions of Americans with tobacco-related lung disease have symptoms that do not fit any existing tobacco-related disease criteria – including the most common of those, chronic obstructive pulmonary ...

Quitting smoking may have a quick payoff for people with asthma. A single smoke-free week may be all it takes to start seeing improvements in asthma patients' lung function, researchers report in ...

Vitamin D deficiency is associated with worse lung function and more rapid decline in lung function over time in smokers, suggesting that vitamin D may have a protective effect against the effects ...

HIV infection is associated with airway obstruction, French investigators report in AIDS. Middle-aged HIV-positive smokers were matched with HIV-negative smokers of the same sex and age. After ...

a slower rate of annual decline in FEV1/FVC: -0.02/yr. The researchers also analyzed the association between anthocyanin consumption and lung function in smokers, those who had never smoked and ...

At high levels of marijuana use—for example, in those who smoked more than 20 times a month—FEV1 slipped back to levels seen in nonusers and a reduction was seen in, um, the most chronic smokers.