title: [Study on mental workload of teachers in primary schools].
abstract: OBJECTIVE
  To investigate the distribution characteristics and influencing factors of mental workload of teachers in primary schools.
  
  
  METHODS
  National Aeronautics and Space Administration-Task Load Index (NASA-TLX) was used to assess the mental workload levels for 397 teachers of primary schools in a city.
  
  
  RESULTS
  The mental workload (64.34+10.56) of female teachers was significantly higher than that (61.73+ 9.77) of male teachers (P<0.05). The mental workload (65.66+10.42) of "-35" years old group was the highest. When age of teachers was younger than 35 years old, there was a positive correlation between the mental workload and age (r=0.146, P<0.05). When age of teachers was older than 35 years old, there was a negative correlation between the mental workload and age (r=-0.190, P<0.05). The teachers with higher education level felt higher mental workload (unstandardized coefficients B=1.524, standardized coefficients /=0.111, P<0.05). There was a positive correlation between the mental workload and working hours per day (unstandardized coefficients B =4.659, standardized coefficients/3 =0.223, P<0.001).
  
  
  CONCLUSIONS
  Mental workload of the teachers in primary schools is closely related to age, educational level and work hours per day. Work hours per day is an important risk factor for mental workload. Reducing work hours per day (8 hours) is an effective measure of alleviating the mental workload of teachers in primary schools.
authors.affiliation: Institute of Occupational Health, School of Public Health, Nanchang University, China.
authors.forename: Yuan-mei
authors.initials: YM
authors.lastname: Xiao
authors.forename: Zhi-ming
authors.initials: ZM
authors.lastname: Wang
authors.forename: Mian-zhen
authors.initials: MZ
authors.lastname: Wang
authors.forename: Ya-jia
authors.initials: YJ
authors.lastname: Lan
authors.forename: Guang-qin
authors.initials: GQ
authors.lastname: Fan
authors.forename: Chang
authors.initials: C
authors.lastname: Feng
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D005178:Faculty; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012574:Schools; D013315:Stress, Psychological / Q000453:epidemiology*; D011795:Surveys and Questionnaires; D016526:Workload / Q000523:psychology*; D055815:Young Adult