Stéphanie Jobard1, Benjamin Chaigne2, Sylvain Marchand-Adam3, Gérard Lasfargues4, Elisabeth Diot5. 1. CHRU de Tours, Service de Médecine Interne, Université François-Rabelais de Tours, 2 bis boulevard Tonnellé, 37032, Tours Cedex, France. stephanie.jobard@univ-tours.fr. 2. Inserm, U1016, Institut Cochin, Paris, France. 3. CHRU de Tours, Service de Pneumologie, Université François-Rabelais de Tours, Tours, France. 4. Institut Santé Travail - Paris-Est, Université Paris-Est, Champs-sur-Marne, France. 5. CHRU de Tours, Service de Médecine Interne, Université François-Rabelais de Tours, 2 bis boulevard Tonnellé, 37032, Tours Cedex, France.
Abstract
OBJECTIVES: A single-center case-control study was carried out to investigate the relationship between occupational and environmental exposure and organizing pneumonia (OP). METHODS: Thirty-seven cases of OP, including 25 cases of cryptogenic OP, and 111 controls were included. Occupational exposure was assessed retrospectively by an industrial hygienist and an occupational physician, through semi-quantitative estimates of exposure. An exposure score was calculated for each subject, based on probability, intensity, daily frequency, and duration of exposure for each period of employment. The final cumulative exposure score was obtained by summing exposure scores for all periods of employment. RESULTS: Significant associations with all-cause OP were observed for exposure to tetrachloroethylene (OR 13.33, CI 95% 1.44-123.5) and silica (OR 6.61, CI 95% 1.16-37.71). A significant association with cryptogenic OP was observed only for tetrachloroethylene (OR 31.6, CI 95% 1.64-610.8). No associations were found for environmental exposure. CONCLUSION: Despite its low statistical power, this work suggests that occupational risk factors could be involved in OP.
OBJECTIVES: A single-center case-control study was carried out to investigate the relationship between occupational and environmental exposure and organizing pneumonia (OP). METHODS: Thirty-seven cases of OP, including 25 cases of cryptogenic OP, and 111 controls were included. Occupational exposure was assessed retrospectively by an industrial hygienist and an occupational physician, through semi-quantitative estimates of exposure. An exposure score was calculated for each subject, based on probability, intensity, daily frequency, and duration of exposure for each period of employment. The final cumulative exposure score was obtained by summing exposure scores for all periods of employment. RESULTS: Significant associations with all-cause OP were observed for exposure to tetrachloroethylene (OR 13.33, CI 95% 1.44-123.5) and silica (OR 6.61, CI 95% 1.16-37.71). A significant association with cryptogenic OP was observed only for tetrachloroethylene (OR 31.6, CI 95% 1.64-610.8). No associations were found for environmental exposure. CONCLUSION: Despite its low statistical power, this work suggests that occupational risk factors could be involved in OP.
Authors: Fabio Di Stefano; Nicola Verna; Luca Di Giampaolo; Paolo Boscolo; Mario Di Gioacchino Journal: J Occup Health Date: 2003-05 Impact factor: 2.708