Publications by authors named "C M Janson"
Background: Air pollution has been linked to respiratory diseases, while the effects of greenness remain inconclusive.
Objective: We investigated the associations between exposure to particulate matter (PM and PM), black carbon (BC), nitrogen dioxide (NO), ozone (O), and greenness (normalized difference vegetation index, NDVI) with respiratory emergency room visits and hospitalizations across seven Northern European centers in the European Community Respiratory Health Survey (ECRHS) study.
Methods: We used modified mixed-effects Poisson regression to analyze associations of exposure in 1990, 2000 and mean exposure 1990-2000 with respiratory outcomes recorded duing ECRHS phases II and III.
Introduction: Previous population-based studies, mainly from high-income countries, have shown that a higher forced vital capacity (FVC) is associated with a lower risk of developing cardiometabolic diseases. The aim of this study was to assess the longitudinal association between spirometry measures and the onset of cardiometabolic diseases across sites in low-income, middle-income and high-income countries.
Methods: The study population comprised 5916 individuals from 15 countries participating in the Burden of Obstructive Lung Disease baseline and follow-up assessments.
Article Synopsis
- Spirometry is a test used to evaluate lung function by comparing it to normal levels in healthy non-smokers, focusing on metrics like forced vital capacity (FVC) and the FEV/FVC ratio.
- The study analyzed data from over 14,000 participants aged 40 and older across 41 sites, revealing regional differences in FVC tied to factors like age and height, categorized into four regions: Europe/richer countries, Near East, Africa, and Far East.
- Findings showed significant regional variations in FVC values between men and women, particularly in Europe compared to the Far East, but minimal differences in the FEV/FVC ratio across regions.
Unlabelled: Obstructive sleep apnoea (OSA) and its associations with lung function.
Background: OSA is highly prevalent and characterised by abnormal respiration during sleep. This large, population-based study aimed to investigate the associations between OSA and lung function in subjects aged 50-64 years.