title: [Correlation between job burnout and salivary immunoglobulin G in employees].
abstract: OBJECTIVE
  To investigate the influence of job burnout on salivary immunoglobulin G(IgG) concentration in employees.
  
  
  METHODS
  In September 2014, evaluation of job burnout was performed for 186 employees in a solar photovoltaic company, and enzyme-linked immunosorbent assay was used to measure salivary IgG concentration.
  
  
  RESULTS
  The employees with over 20 working years had a significantly higher salivary IgG concentration than those with ≤15 working years(53.80±8.22 μg/ml vs 49.93±7.97 μg/ml, P<0.05). The employees with long-day shifts had a significantly higher salivary IgG concentration than those with day-night shifts (54.98±7.62 μg/ml vs 51.85±7.94 μg/ml, P<0.05). The employees with depersonalization had a significantly lower salivary IgG concentration than those without depersonalization(50.69±9.89 vs 53.19±6.54, P<0.05). The salivary IgG concentration was negatively correlated with the scores of emotional exhaustion, depersonalization, and job burnout (r=-0.194, -0.152, and -0.210, all P<0.05).
  
  
  CONCLUSIONS
  Job burnout is negatively correlated with salivary IgG concentration, which tends to decrease with the increasing severity of job burnout. Therefore, salivary IgG can be used as a biomarker for the identification and evaluation of job burnout.
authors.affiliation: School of Public Health, Southeast University, Nanjing 210009, China.
authors.forename: H E
authors.initials: HE
authors.lastname: Tian
authors.forename: K Y
authors.initials: KY
authors.lastname: Liu
authors.forename: H
authors.initials: H
authors.lastname: Zhang
authors.forename: Y N
authors.initials: YN
authors.lastname: Qian
authors.forename: L L
authors.initials: LL
authors.lastname: Liu
authors.forename: L
authors.initials: L
authors.lastname: Ma
authors.forename: Q D
authors.initials: QD
authors.lastname: Zhang
authors.forename: X Y
authors.initials: XY
authors.lastname: Zhu
mesh_terms: D002055:Burnout, Professional; D003861:Depersonalization; D004644:Emotions; D005221:Fatigue; D006801:Humans; D007074:Immunoglobulin G; D009784:Occupational Diseases; D012463:Saliva; D014940:Work Schedule Tolerance
chemical_list: D007074:Immunoglobulin G