In vitamin D deficient subjects, for each one unit increase in pack-years of smoking, mean forced expiratory volume in one second (FEV1) was 12 ml lower, compared with a mean reduction of 6.5 ml ...

Compared to those who never smoked, stable heavy smokers experienced the greatest decline in lung function as measured by FEV1, or the amount of air that can be forcibly exhaled in one second (-42 ...

The bronchial challenge is regarded as positive when FEV1 or FVC increase by 12% or 200 ml compared to baseline values 15–20 minutes after administering 400 mcg of Salbutamol ... Quitting smoking ...

Lung-Protective Ventilation Ups Outcomes Post-Abdominal Op For current male smokers, vitamin D deficiency correlates with lower lung function and more rapid lung function decline. (HealthDay News ...

Millions of Long-Term Smokers Have Lung Disease that Defies Diagnosis UCSF study finds current definition of chronic tobacco-related lung diseases leaves patients undiagnosed and untreated. ... By ...

New research presented at CHEST 2009 highlights abstracts related to the use of pulmonary rehabilitation to encourage smoking cessation, the use of varenicline as an effective treatment for ...

Current COPD guidelines advocate a fixed < 0.70 FEV1/FVC cutpoint to define airflow obstruction. We compared rate of lung function decline in respiratory symptomatic 40+ subjects who were ...

Quitting smoking may have a quick payoff for people with asthma. ... After one week of not smoking, scores on that same lung function test — called FEV1 — began to improve.

Visit-to-visit FEV1 variation was found to be a mortality risk factor among 9/11 FDNY rescue and recovery workers.

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.

Your FEV1 result can be used to determine how severe your COPD is. Learn more about how to interpret your FEV1 reading. ... In most people, COPD is caused by cigarette smoking, ...

In a study published Monday in JAMA Internal Medicine, researchers found that long-term exposure to ozone in the atmosphere has significant effects on lung function, particularly among heavy smokers.