Skip to main content

Table 5 Multiple linear regression models

From: Evaluation of immunological, inflammatory, and oxidative stress biomarkers in gasoline station attendants

 IL-1β (pg mL− 1)IL-6 (pg mL− 1)TNF-α (pg mL− 1)INF-γ (pg mL− 1)
R square = 0.579R square = 0.555R square = 0.584R square = 0.627
Βp-valuesβp-valuesβp-valuesβp-values
Benzene (μg m−3)a0.437p < 0.050.519p < 0.050.496p < 0.050.388p < 0.05
Toluene (μg m−3)a0.213p > 0.050.270p > 0.050.221p > 0.050.268p > 0.05
m-Xylene (μg m−3)a− 0.250p > 0.05− 0.182p > 0.05− 0.333p > 0.05− 0.080p > 0.05
p-Xylene (μg m− 3)a− 0.259p > 0.05− 0.285p > 0.05− 0.349p > 0.05− 0.177p > 0.05
t,t-MA (μg g− 1 creatinine)a− 0.319p > 0.05− 0.212p > 0.05−0.300p > 0.05−0.058p > 0.05
CD86 monocyte expression (%)a−0.404p > 0.05−0.381p > 0.05−0.428p > 0.05−0.374p > 0.05
PCO (nmol mg−1 protein)a0.140p > 0.050.017p > 0.050.051p > 0.050.053p > 0.05
GST (U GST mg−1 protein)a−0.165p > 0.05−0.071p > 0.05−0.196p > 0.05−0.155p > 0.05
Exposure time (years)a−0.463p > 0.05−0.481p > 0.05−0.461p > 0.05−0.387p > 0.05
Age (years)a0.277p > 0.050.229p > 0.050.148p > 0.050.161p > 0.05
Smokingb−0.129p > 0.05−0.087p > 0.05−0.085p > 0.05−0.123p > 0.05
  1. t,t-MA trans,trans-muconic acid, IL-1β interleukin-1β, IL-6 interleukin-6, TNF-α tumor necrosis factor-α, IFN-γ interferon-γ, PCO protein carbonyl, GST glutathione S-transferase
  2. aCategorical variable
  3. bContinuous variable