fig2

Figure 2. The association between urinary OH-PAHs and anxiety symptoms. (A) crude model; (B) the model adjusted for age and sex; (C) the model adjusted for age, sex, marital status, educational level, BMI, exercise, smoking status, and drinking. OH-PAHs: Hydroxylated polycyclic aromatic hydrocarbons; BMI: body-mass index; 1-OHNap: 1-hydroxynaphthalene; 2-OHNap: 2-hydroxynaphthalene; 2-OHFlu: 2-hydroxyfluorene; 3-OHFlu: 3-hydroxyfluorene; 1/9-OHPhe: 1/9-hydroxyphenanthrene; 2-OHPhe: 2-hydroxyphenanthrene; 3-OHPhe: 3-hydroxyphenanthrene; 4-OHPhe: 4-hydroxyphenanthrene; 1-OHPyr: 1-hydroxypyrene; ΣOH-NAPs: sum of 1-OHNap and 2-OHNap; ΣOH-FLUs: sum of 2-OHFlu and 3-OHFlu; ΣOH-PHEs: sum of 1/9-OHPhe, 2-OHPhe, 3-OHPhe, and 4-OHPhe; ΣOH-PAHs: total sum of all nine urinary OH-PAH metabolites.