Exposure-response relationship between endotoxin exposure and lung function impairment in cotton textile workers.
Standard
Exposure-response relationship between endotoxin exposure and lung function impairment in cotton textile workers. / Oldenburg, Marcus; Latza, Ute; Baur, Xaver.
In: INT ARCH OCC ENV HEA, Vol. 80, No. 5, 5, 2007, p. 388-395.Research output: SCORING: Contribution to journal › SCORING: Journal article › Research › peer-review
Harvard
APA
Vancouver
Bibtex
}
RIS
TY - JOUR
T1 - Exposure-response relationship between endotoxin exposure and lung function impairment in cotton textile workers.
AU - Oldenburg, Marcus
AU - Latza, Ute
AU - Baur, Xaver
PY - 2007
Y1 - 2007
N2 - OBJECTIVES: Preventive workplace regulations are so far not based on an ubiquitously accepted threshold for airborne endotoxin in the bioaerosol. METHODS: In a cross-sectional study, 150 employees of a cotton spinning mill underwent lung function testing. Furthermore, in a random subset of 75 textile workers cross-shift lung function test and methacholine challenges were performed. Airborne current endotoxin exposure was classified as "low", "medium", and "high" (100-450 Endotoxin Units (EU)/m(3), respectively) based on endotoxin activity. RESULTS: The exposure-response relationship between current endotoxin exposure and prevalence of an obstructive ventilation pattern was significant (test for linear trend: P = 0.019); the adjusted odds ratio for high endotoxin exposure was 11.22 (95% confidence interval 1.03-121.17). Within individuals, FEV(1)/FVC% was significantly reduced after the shift (paired t test: P = 0.009) but not related to current endotoxin exposure. Twelve workers showed bronchial hyperresponsiveness (8.1% before and 12.2% after the work shift; Fisher's exact test: P = 0.021). CONCLUSION: The study among German cotton textile workers suggests an exposure-dependent effect of current endotoxin exposure on lung function impairment with significant effects above 450 EU/m(3).
AB - OBJECTIVES: Preventive workplace regulations are so far not based on an ubiquitously accepted threshold for airborne endotoxin in the bioaerosol. METHODS: In a cross-sectional study, 150 employees of a cotton spinning mill underwent lung function testing. Furthermore, in a random subset of 75 textile workers cross-shift lung function test and methacholine challenges were performed. Airborne current endotoxin exposure was classified as "low", "medium", and "high" (100-450 Endotoxin Units (EU)/m(3), respectively) based on endotoxin activity. RESULTS: The exposure-response relationship between current endotoxin exposure and prevalence of an obstructive ventilation pattern was significant (test for linear trend: P = 0.019); the adjusted odds ratio for high endotoxin exposure was 11.22 (95% confidence interval 1.03-121.17). Within individuals, FEV(1)/FVC% was significantly reduced after the shift (paired t test: P = 0.009) but not related to current endotoxin exposure. Twelve workers showed bronchial hyperresponsiveness (8.1% before and 12.2% after the work shift; Fisher's exact test: P = 0.021). CONCLUSION: The study among German cotton textile workers suggests an exposure-dependent effect of current endotoxin exposure on lung function impairment with significant effects above 450 EU/m(3).
M3 - SCORING: Zeitschriftenaufsatz
VL - 80
SP - 388
EP - 395
JO - INT ARCH OCC ENV HEA
JF - INT ARCH OCC ENV HEA
SN - 0340-0131
IS - 5
M1 - 5
ER -