Aspects on confounding in occupational health epidemiology.

Confounding from smoking in occupational epidemiology.

Occupational health aspects of quartz in

Quartz (α-quartz), is the most common crystalline silica polymorph in nature and is the only polymorph found in significant concentrations in coal and coal ash. Since exposure to quartz is liable to cause lung diseases, it is very important to know its concentrations in coal ash and to evaluate its effects on the workers. Inhalation is the most effective route of entry for airborne particles of...

Health Technology Assessment of Occupational therapy in Elderly with Dementia from Ethical and Legal Aspects

Dementia is a major health problem due to the high costs of treatment, high prevalence in the elderly, severe consequences, and the imposition of physical and psychological stresses on families of the patients. Occupational therapy is one of the most important approaches among many technologies employed for helping the patient and reducing the burden of healthcare for patients. This applied stu...

Confounding in health research.

Consideration of confounding is fundamental to the design, analysis, and interpretation of studies intended to estimate causal effects. Unfortunately, the word confounding has been used synonymously with several other terms, and it has been used to refer to at least four distinct concepts. This paper provides an overview of confounding and related concepts based on a counterfactual model of cau...

Multidisciplinary model of occupational health services. Medical and non-medical aspects of occupational health.

Since 1950, the International Labour Organization (ILO) and the World Health Organization (WHO) have had a common definition of occupational health. The definition was adopted by the Joint ILO/WHO Committee on Occupational Health at its First Session (1950) and revised at its 12th Session (Geneva, November 1995). Occupational health should aim to promote and maintain the highest degree of physi...