Calculation of fractions of lung cancer incidence attributable to occupational exposure to asbestos and combustion products in Stockholm, Sweden.

In a population-based case-referent study of lung cancer we wanted to estimate the over-all influence on the lung cancer incidence from several occupational exposures. Standard methods to do this are based on addition of separately estimated attributable fractions (AFs) by rather complex formulas. Although a simple and valid method for direct estimation of summary effects was published in 1990, it is not well known and has rarely been used.

Excessive physical demands in modern worklife and characteristics of work and living conditions of persons at risk.

Objectives: This study attempted to identify work and leisure-time conditions and life-style factors associated with excess metabolic levels (metabolic demands exceeding one-third of a person's aerobic capacity) at work among men and women.

Methods: The study focused upon psychological, ergonomic, and physically loading factors and chemical and physical environmental conditions. Data were obtained through self-reports, interviews, workplace analyses, technical measurements, and observations.

Myocardial infarction among professional drivers.

Background: Professional drivers are at an increased risk of myocardial infarction but the underlying causes for this increased risk are uncertain.

Methods: We identified all first events of myocardial infarction among men age 45-70 years in Stockholm County for 1992 and 1993. We selected controls randomly from the population.

Low-dose exposure to asbestos and lung cancer: dose-response relations and interaction with smoking in a population-based case-referent study in Stockholm, Sweden.

This population-based case-referent study investigated the lung cancer risk associated with occupational exposure to asbestos, focusing on dose-response relations and the interaction with tobacco smoking. Incident cases of lung cancer among males aged 40-75 years in Stockholm County, Sweden, were identified from 1985 to 1990. Referents were selected randomly within strata (age, inclusion year) of the study base.