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Makol A., Reilly M.J., Rosenman K.D.
Prevalence of connective tissue disease in silicosis (1985-2006) - A report from the State of Michigan surveillance system for silicosis
The risk of developing clinical connective tissue disease (CTD) has been reported to be increased among individuals with silica exposure. This study consisted of reviewing the medical records of individuals reported to the Michigan Silicosis Surveillance system from 1985 to 2006 to confirm the diagnosis of silicosis and determine the presence of CTDs. From 1985 to 2006, 1,022 cases were confirmed to have silicosis. Medical records of 790 cases were available. Thirty-three individuals had rheumatoid arthritis (prevalence 4.2%, prevalence ratio (RR) ranging from 2.26 to 6.96 depending on the reference rate used), two had scleroderma (prevalence 0.3%, RR 28.3), one had systemic lupus erythematosus (prevalence 0.1%, RR 2.53), two had Sjogrens syndrome (prevalence 0.3%, RR 0.42) and six had anti-neutrophil cytoplasm antibody (ANCA) vasculitis (prevalence 0.8%, RR 25.3). There was no difference between those with and without CTD with respect to age, race, industry type, history of tuberculosis, application for workers' compensation, or severity of fibrotic changes on chest X-ray. Implications of these findings are discussed.
American Journal of Industrial Medicine, 2011, Vol.54, p.255-262. 40 ref.
Burström L., Järvholm B., Nilsson T., Wahlström J.
White fingers, cold environment, and vibration-exposure among Swedish construction workers
The aim of this study was to examine the association between white fingers, cold environment, and exposure to hand-arm vibration (HAV). The hypothesis was that working in cold climate increases the risk of white fingers. The occurrence of white fingers was investigated as a cross-sectional study in a cohort of 134,757 Swedish male construction workers. Exposure to HAV was based on a job-exposure matrix. Living in the north or south of Sweden was, in a subgroup of the cohort, used as an indicator of the exposure to cold environment. The analyses were adjusted for age and use of nicotine products (smoking and snuff). HAV-exposed workers living in a colder climate had a higher risk for white fingers than those living in a warmer climate (odds ratio (OR) 1.71). As expected, it was found that HAV-exposed workers had an increased risk compared to controls (OR 2.02). The risk for white fingers increased with increased level of exposure to HAV and also with age.
Scandinavian Journal of Work, Environment and Health, Nov. 2010, Vol.36, No.6, p.509-513. 18 ref.
Maciá Suades M., Juanola Pagès E.
Lipoatrofia semicircular: la experiencia de Barcelona
This article describes the characteristics of semicircular lipoatrophy and presents the experience drawn from all reported cases in Barcelona in 2007 and early 2008 and the preventive measures taken. Semicircular lipoatrophy is a reversible atrophic lesion of the adipose tissue, which in most cases affects the antero-lateral zone of the thigh and is mainly occupation-related. In enterprises where preventive measures have been taken, improvements or complete recoveries were observed. The Catalan administration has published an action protocol in order to unify procedures in enterprises and in occupational safety and health services.
Seguridad y Salud en el Trabajo, May 2009, No.52, p.14-21. Illus. 26 ref.
Lipoatrofia_semicircular.pdf [en español]
Poole K., Mason H., McDowell G.
Health and Safety Executive
The influence of posture and environmental temperature on the diagnostic ability of finger systolic blood pressure
Individuals with the vascular component of hand-arm vibration syndrome (HAVS) experience whiteness or blanching of the fingers in cold conditions, which is accompanied by numbness and then tingling or pain when the fingers warm-up. There is a need for a suitable diagnostic test to help confirm the diagnosis. Measurement of finger systolic blood pressure (FSBP) with cold-provocation has been reported to be of diagnostic value in individuals with the vascular component of HAVS and those with primary Raynauds phenomenon. The overall aim of this work was to investigate whether factors such as posture and environmental temperature were important in influencing the ability of FSBP to discriminate between controls and those with Primary Raynauds phenomenon. Findings are discussed.
HSE Books, P.O. Box 1999, Sudbury, Suffolk CO10 2WA, United Kingdom, 2008. vi, 34p. Illus. 20 ref.
RR_665.pdf [en inglés]