A Current Assessment of Rurally Linked Exposures as Potential Risk Factors for Sarcoidosis:

CONCLUSIONS: The results of this study provide further support for the hypothesis that behaviors associated with rural living play some role in the development of sarcoidosis. This study further suggests that exposures involving the handling or burning of wood for home heating may, in part, explain this rural association.

DANIEL K. KAJDASZ, PhD, DANIEL T. LACKLAND, DrPH,
LAWRENCE C. MOHR, JR., MD, AND MARC A. JUDSON, MD

Elsevier Science Inc. All rights reserved.
Ann Epidemiol2001;11:111-117. 02001

PURPOSE: To identify and quantify the risk of developing sarcoidosis associated with specific rural exposures previously recognized as potential risk factors for this disease.

METHODS: A matched case-control design was carried out, with a 2-to-l ratio of controls to cases. Case exposure histories were determine from a detailed questionnaire collecting self-reported information covering the period from birth through disease development and comparing that to exposure exposure histories for the corresponding period in age-, race, and gender .matched controls Identified using Random Digit Dial Survey
Methodology

CONCLUSIONS: The results of this study provide further support for the hypothesis that behaviors associated with rural living play some role in the development of sarcoidosis. This study further suggests that exposures involving the handling or burning of wood for home heating may, in part, explain this rural association.

KEY WORDS: Case-Control Studies, Environmental Exposure, Epidemiology, Sarcoidosis.

INTRODUCTION

Sarcoidosis is a systemic granulomatous reticulosis of unknown etiology that may involve any tissue or organ system, but most often effects the lungs, lymph nodes, skin, eyes, and liver.
(l). Since this disorder was first documented 100 years ago, knowledge of the clinical and epidemiological aspects of the disease has progressed dramatically. However,
The etiology(s) of sarcoidosis remains unknown. A variety of environmental, occupational, infectious, and genetic risk factors have been studied over the last 50 years, but no single exposure has been found which consistently ""d completely explains the distribution of sarcoidosis (2-4). Epidemiological studies of Sarcoidosis in the US have consistently documented an increased risk for sarcoidosis in the Southeast and rural areas of the US (5-13). It is not known if a single risk factor is responsible for both of these

Address reprint requests to: Daniel Lackland, DrPH, Department of Biometry and Epidemiology, Medical University of South Carolina, R,tledge Tower llZ5, Charleston, SC 29425


Could it be wood smoke? ED.

Title: Sarcoidosis May Be Caused By Unknown Environmental Agent

URL: http://www.pslgroup.com/dg/246AA.htm
Doctor's Guide
April 24, 1997

DENVER -- April 24, 1997 -- "Sarcoidosis is a result of an unknown environmental agent," says Lee Newman, M.D., a National Jewish Medical and Research Center physician. "Sarcoidosis is a mystery disease. There's probably more than one cause."

Dr. Newman's "Medical Progress" report in the April 24 edition of the New England Journal of Medicine outlines what the medical community has learned about the disease during the past 10 years and the best ways to treat it.

Sarcoidosis -- the most common type of interstitial lung disease -- attacks the entire body, focusing on the lungs, eyes, skin and organs. It is characterized by inflamed, microscopic growths called granulomas, most often found in the lungs. Sarcoidosis can cause redness in the eyes, shortness of breath, bumps on the skin, fatigue, fever and general pain caused by exposure to light. Oral corticosteroids are used to treat sarcoidosis.

About 3 percent of African-American women risk getting the disease sometime during their adult lives. It typically affects people between the ages of 20-40. The disease is slightly less common in African-American men, and Caucasian women and men. In the United States, 30 people in every 100,000, in all ethnic groups, have sarcoidosis.

"Sarcoidosis shows up in every medical practice in the country," says Dr. Newman, director of the National Jewish Division of Environmental and Occupational Health Sciences.

Sarcoidosis apparently isn't contagious, but researchers believe shared environmental exposure, such as living in the same house or town, or working in the same building, may lead to the disease. For example, sarcoidosis is more common in health care workers, especially nurses, and in rural areas.

"It tends to run in families," says Dr. Newman, who has treated people with sarcoidosis for more than 15 years. "If there's one person in a family with sarcoidosis, then there is as much as a 16 percent chance another family member will contract the disease."

For more information about sarcoidosis, call LUNG LINE, (800) 222-LUNG.

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