Fig. 4
From: Associations of exposure to polycyclic aromatic hydrocarbons with hearing in U.S. Adults
The forest map of the correlation between single PAH exposure and hearing. Model 1 was not adjusted; Model 2 was adjusted for age, gender, body mass index (BMI), waist circumference, alcohol drinks, smoking, race, education level and annual household income. Note: *p-value < 0.05, **p-value < 0.01.
