In Finland three pioneer studies on respiratory epidemiology were published between the
years 1960 and 1970 (Järvinen et al 1960a, Huhti 1965, Alanko 1970). According to them …

Abstract The Obstructive Lung Disease in Northern Sweden study's (OLIN) overall aim is
prevention of obstructive airways diseases; asthma, chronic bronchitis and chronic …

Background: According to previous studies, the prevalence of asthma has been lower in
Finland than in other Nordic countries. In the present study, we assessed the prevalence of …

Asthma prevalence has increased over the last fifty years, but the more recent changes have
not been conclusively determined. Studies in children indicate that a plateau in the …

The thesis is based on original research data of the Estonian part of the" FinEsS" studies,
which are cross-sectional comparative studies between Finland, Estonia and Sweden …

Incidence studies offer a better opportunity to study risk factors for asthma than do
prevalence studies. However, regular prospective follow‐ups of large cohorts are difficult to …

The prevalence of obstructive lung diseases is increasing in Scandinavia and worldwide.
The reasons for this are not known. The prevalence varies between countries but also …

Study objectives: The influences of different smokingcategories on the prevalence of
respiratory symptoms, asthma, and chronic bronchitis have been examined in the most …

Several comparable surveys of childhood as have been performed in Norway. This article
describes the prevalence among children, 6-13 years old, during the period 1985-94, and …

Background The prevalence of asthma has increased both among children and adults
during the latter half of the 20th century. The prevalence among adults is affected by the …