Constitutional Factors and Irradiation as Risk Factors for Thymoma: A European Case-Control Study.

Little is known about the aetiology of thymoma. This study aims to identify medical risk factors for thymoma as a systematic approach to new hypotheses on the aetiology of this disease. A European multi-centre case-control study was conducted from 1995 to 1997, including incident cases aged 35-69 years with thymoma.

Tobacco smoking and alcohol consumption as risk factors for thymoma - A European case-control study.

Purpose: Hardly anything is known about the aetiology of thymoma. This paper presents data regarding tobacco smoking and alcohol consumption in relation to thymoma from the first case-control study performed on this rare tumour.

Methods: A European multi-centre case-control study including incident cases aged 35-69 years with thymoma between 1995 and 1997, was conducted in seven countries.

Is there a relationship between anaesthesia and dementia?

Background: Long-term cognitive problems are common among elderly patients after surgery, and it has been suggested that inhalation anaesthetics play a role in the development of dementia. This study aims to investigate the hypothesis that patients with dementia have been more exposed to surgery and inhalational anaesthetics than individuals without dementia.

Methods: Using 457 cases from a dementia-registry and 420 dementia-free controls, we performed a retrospective case-control study.

Body dysmorphic disorder in female Swedish dermatology patients.

Background: Individuals with body dysmorphic disorder (BDD) are highly distressed and impaired owing to perceived defects in their physical appearance that are not noticeable to others. They are frequently concerned about their skin and often present to dermatologists rather than psychiatrists. However, BDD patients attending dermatology clinics may be at risk of not receiving an appropriate assessment and beneficial treatment.

Increased Cancer Incidence in the Local Population Around Metal-Contaminated Glassworks Sites.

Objective: The aim of this study was to examine mortality causes and cancer incidence in a population cohort that have resided in close proximity to highly metal-contaminated sources, characterized by contamination of, in particular, arsenic (As), cadmium (Cd), and lead (Pb).

Methods: Data from Swedish registers were used to calculate standardized mortality and cancer incidence ratios. An attempt to relate cancer incidence to metal contamination levels was made.