Fig. 1From: Cold-related symptoms and performance degradation among Thai poultry industry workers with reference to vulnerable groups: a cross-sectional studyPrevalence of cold-related respiratory symptoms and performance degradation (%) by educational classes and job categories. Figure shows educational and job differences in prevalence of cold-related respiratory symptoms and performance degradation and the effect of adjusting for personal factors and additionally adjusting for work-related factors. Horizontal bars are 95% confidence intervalsBack to article page