The relationship between occupational stress and job burnout in coal miners: Interactions between GCCR and SLC6A4...

To understand the current situation of job burnout among coal miners in Xinjian. The effects of occupational stress, GCCR and SLC6A4 gene polymorphisms, and gene-environment interactions on job burnout in coal miners were analyzed. This study provides a scientific basis for formulating health strategies to combat job burnout in the future.

The job burnout scale and job content questionnaire (JCQ) were used to investigate the general situation of job burnout among coal miners and its influencing factors. The imLDR^TM multiple SNP typing kit was used to type 300 samples (150 samples from the burnout case group and 150 from the control group). The relationship between the occurrence of job burnout, and the GCCR and SLC6A4 genes was analyzed.

There were significant differences in the rate of burnout among miners of different sexes, ages, working years, shifts, working types, and marital status (P < 0.05). The difference in occupational stress between the different job burnout groups was statistically significant (P < 0.05). The GG genotype at rs41423247 increased the risk of burnout (OR=3.224, 95% CI:1.425-7.294). Similarly, compared to the TT genotype at rs11080122, the CC genotype increased the susceptibility of job burnout (OR =2.614, 95% CI:1.047-6.527). The results of gene-environment interaction regression analyses showed that the interaction between rs41423247, rs17209237, and occupational stress increased the risk of job burnout (OR = 5.049, 95% CI = 2.371-10.750).

In addition to demographic characteristics, occupational stress was also a risk factor for job burnout. The interaction between rs41423247 and rs17209237 of the GCCR gene and occupational stress increased the risk of job burnout.