Table 3 Linear regression of SJL in relation to parameters of oxidative damage and antioxidant defense, adjusted for age, working hours and shift.

From: Night workers have lower levels of antioxidant defenses and higher levels of oxidative stress damage when compared to day workers

  Alla Nightb Dayb
β p-value R2 β p-value R2 β p-value R2
TBARS −0.01 0.360 0.13 0.01 0.919 0.01 −0.03 0.013* 0.16
Carbonyls 0.01 0.877 0.01 −0.01 0.983 0.07 −0.05 0.380 0.03
H202 0.62 0.394 0.15 0.28 0.775 0.07 2.56 0.185 0.07
Nitrite 0.01 0.953 0.25 −0.01 0.958 0.08 0.02 0.898 0.20
FRAP 0.01 0.901 0.32 −0.01 0.863 0.08 0.02 0.578 0.20
CAT −0.16 0.403 0.21 −0.18 0.331 0.06 0.84 0.269 0.04
SOD −1.33 0.658 0.40 −0.77 0.638 0.06 −6.51 0.656 0.07
GPx −0.34 0.186 0.10 −0.36 0.136 0.01 −1.02 0.337 0.03
  1. Abbreviations: SJL, Social Jetlag; TBARS, thiobarbituric acid reactive substances; H202, oxygen peroxide; FRAP, ferric reducing antioxidant power (total antioxidant capacity); CAT: catalase; SOD, superoxide dismutase; GPx, glutathione peroxidase. aAdjusted for age and shift. bAdjusted for age and working hours.
  2. *p < 0.05 indicates statistically significant adjustments.