We examined the relations between bronchial reactivity, baseline FEV1, and annual decline of height corrected FEV1 (delta FEV1/ht3) over 7.5 years in 227 men (117 smokers, 71 ex-smokers, and 39 non-smokers). Men with a clinical diagnosis of asthma or receiving bronchodilator treatment were excluded. Bronchial reactivity was determined as the provocation concentration (PC20) of inhaled histamine...

BACKGROUND Recent studies have showed that FEV1/FVC describing correspondence between the forced expiratory volume in one second (FEV1) and forced vital capacity (FVC) depends significantly on age. However, the nature of this dependence is uncertain. The study aim is to analyze mathematically the relationship between FEV1 and FVC to find a cause of the FEV1/FVC dependence on age in healthy subj...

Objectives: This study was aimed to determine the Effect effect of incentive spirometry on pulmonary function tests in patients undergoing hemodialysis. Methods: This study was a randomized clinical trial conducted in on hemodialysis patients. The obtained Data were collected from 26 patients in the experimental and 26 patients in the control group. In The the control group, patients received ...

BACKGROUND There is a direct association between level of lung function, measured by forced expiratory volume in 1 second (FEV1) and mortality rates. A low FEV may result from an increased decline in FEV1 with age, which may be an independent predictor of mortality. OBJECTIVE To examine the association between decline in FEV1 and mortality in a cohort from a community health study. SETTING ...

BACKGROUND The best method for expressing lung function impairment is undecided. We tested in a population of patients with chronic obstructive pulmonary disease (COPD) whether forced expiratory volume in 1 second (FEV1) or FEV1 divided by height squared (FEV1/ht2) was better than FEV1 percent predicted (FEV1PP) for predicting survival. METHOD FEV1, FEV1PP, and FEV1/ht2 recorded post bronchod...

Background The Global Lung Initiative 2012 (GLI-2012) spirometry equations are multi-ethnic that cover all ages between 3 and 95. However, there is a need to evaluate the suitability of these sample Middle Eastern adolescents prior being applied in clinical practice. aim this study GLI-2012 two regional Jordanian adolescents. Methods Spirometric measures were collected from 1036 healthy 14 17-y...

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