Fig. 2From: Respiratory health effects of exposure to low levels of airborne endotoxin – a systematic reviewForest plots presenting the odds ratio (OR) for asthma (a), chest tightness (b), cough (c) and wheeze (d) – exposure to multiple bioaerosols. Prevalence is calculated for exposed vs non-exposed subjects or high vs low exposed subjects. *OR for dose-dependent relationship with endotoxin (no other bioaerosols included in calculations). °non-occupational studyBack to article page