Fig. 2
Interaction effects between years of shift work and sleep measures. Interaction effects between years of shift work and insomnia symptoms (a), sleep deprivation (b), and the quadratic term of sleep deprivation (c) when predicting AgeDevGrim or DunedinPACE. (c) was adjusted for array type, sex, and smoking status. (a) and (b) were additionally adjusted for health covariates