Keyphrases
Airway Obstruction
100%
Dietary Vitamin A
100%
Vitamin A Intake
66%
Forced Expiratory Volume in 1 Second (FEV1)
33%
Atherosclerotic Risk Factors
33%
Vitamin A
33%
NHANES
16%
Lung Function
16%
Risk Factors
16%
Food Frequency Questionnaire
16%
National Health Interview Survey
16%
Cigarette Smoking
16%
Confidence Interval
16%
Odds Ratio
16%
Middle-aged Adults
16%
Current Smokers
16%
Causal Relationship
16%
Spirometry
16%
Population-based Sample
16%
Usual Intake
16%
Pack-years
16%
Obstructive Lung Disease
16%
Categorical Measure
16%
Biological Plausibility
16%
Continuous Measures
16%
Large Population Study
16%
Medicine and Dentistry
Retinol
100%
Airway Obstruction
100%
Atherosclerosis
33%
Vitamin A
33%
Lifespan
16%
Lung
16%
middle age
16%
Population Research
16%
Cigarette Smoking
16%
Dietary Intake
16%
Spirometry
16%
Food Frequency Questionnaire
16%
Obstructive Lung Disease
16%
Phenmetrazine
16%
Odds Ratio
16%
National Health and Nutrition Examination Survey
16%
Causal Relationship
16%