Fig. 1

Logistic regression analysis of MetS influencing factors of participants in JDC and ERI models

Note: Gender was “male” as the reference group; Age was “<30 years old” as the reference group; Marital status was “single” as the reference group; Education was “junior college and below” as the reference group; Working system was “regular day shift” as the reference group; Chemical toxicant, noise, dust and VDT operation were “no” as the reference group; Monthly income was “<10000 yuan” as the reference group; Smoking and drinking were “no” as the reference group. D/C ratio, social support, E/R ratio and over-commitment are continuous variables

Model 1: Unadjusted crude model;

Model 2: Adjusted for variables with p < 0.05 in Model 1;

Model 3: Based on model 2, with adjustments for chemical toxicant and VDT operation