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Table 2 Exposure levels, oxidative stress, and DNA damage in coke oven workers (COWs) and controls

From: Effects of a fruit-vegetable dietary pattern on oxidative stress and genetic damage in coke oven workers: a cross-sectional study

Parameters Controls Topside COWs Other COWs
(n = 67) (n = 51) (n = 79)
Exposure levels    
 1-OHP(μmol/mol creatinine)a 0.6 (0.2–1.9) 6.5 (2.9–10.3)*** 2.4 (1.1–5.7)***
Oxidative stress    
 SOD (U/mL)a 1068.5 (35.2) 753.7 (60.9)*** 821.8 (47.1)***
 GPx (U/mL)a 84.2 (2.3) 47.8 (5.6)*** 55.1 (3.9)***
 MDA (nmol/mL)a 3.9 (0.8) 6.9 (1.4)*** 6.7 (1.2)***
DNA damage    
 MN frequency (‰)a 2.2 (1.8) 5.1 (4.7)*** 4.6 (5.2)***
 8-OH-dG(μmol/mol creatinine)b 1.3 (0.8–1.8) 2.3 (1.0–7.1)*** 2.4 (0.7–6.9)***
  1. ***P < 0.001 vs. control group.
  2. aArithmetic mean (standard deviation).
  3. bGeometric mean (95% confidence interval).