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What was learned from following the change in the same worker’s Workability for 8 years?

What was learned from following the change in the same worker’s Workability for 8 years?. Masaharu Kumashiro, Manabu Kadoya, Yozo Otsuki, Makoto Kubota, Tsuyoshi Yamashita, and Hiroyuki Izumi. Dept. of Ergonomics, Univ. of Occupational and Environmental Health, Japan.

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What was learned from following the change in the same worker’s Workability for 8 years?

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  1. What was learned from following the change in the same worker’s Workability for 8 years? Masaharu Kumashiro, Manabu Kadoya, Yozo Otsuki, Makoto Kubota, Tsuyoshi Yamashita, and Hiroyuki Izumi Dept. of Ergonomics, Univ. of Occupational andEnvironmental Health, Japan

  2. Contents of Questionnaire 2002 2003 2004 2005 2006 2007 2000 2001 GHQ SACL SDS GHQ SDS Type A Scale C score GHQ SDS Type A Scale C score GHQ Type A GHQ Type A Checklist for mental health Condition (original) PSRS-50R Ｊob Satisfaction (original) MDQ MDQ WAI , NIOSH job stress Questionnaire

  3. Number collected Number distributed Response rate (%) Average age (MEAN±SD)‏ 2000 2001 2002 2003 2004 2005 2006 2007 968 929 906 994 1049 1156 1280 1407 1004 980 980 1076 1067 1251 1350 1447 96.4 94.8 92.4 92.4 98.3 92.4 94.8 97.2 37.8±9.8 38.9±9.6 39.2±9.8 39.7±10.1 40.7±9.9 40.3±10.6 40.0±10.9 40.1±10.9 Number of subjects

  4. The subjectselection 8 years tracked (only WAI)‏ SACL n=571 SDS Excellent GHQ n= 15 NIOSH WAI Good n=122 WAI n=221 NIOSH Moderate n=76 Poor n= 968 (in the year2000)‏ n= 8

  5. Whole date of 8 years

  6. Trends in WAI categories Good Excellent Poor Moderate Years 2000 2001 2002 2003 2004 2005 2006 2007 50% 100% 0%

  7. Trends in NIOSH classifications over eight years scores Stressor Job control Quantitative workload Stress response Depression 0 Years n= 1004 980 980 1076 1067 1251 1350 1447

  8. Date of the 571 employees that could be tracked WAI For 8 years

  9. Trends in WAI categories tracked over 8 years (N=571) Excellent Poor Moderate Good Years 2000 2001 2002 2003 2004 2005 2006 2007 0% 50% 100%

  10. Trends in NIOSH classifications for the 571 employees that could be tracked over eight years scores Stressor Job control Quantitative workload Stress response Depression n= 571 0 Years

  11. Subject 8 years tracked(WAI)‏ SACL n=571 SDS Excellent GHQ n= 15 NIOSH WAI Good n=122 n=221 WAI NIOSH Moderate n=76 Poor n= 968 (in the year2000)‏ n= 8

  12. Baseline data for “Poor” and “Excellent”

  13. Baseline data for “Poor” and “Excellent”

  14. The correlation between job stressors, NIOSH depression, and changes in WAI< Poor> Stress response Stressor P<0.05 P<0.10

  15. The correlation between job stressors, NIOSH depression, and changes in WAI< Excellent > Stress response Stressor P<0.10 P<0.05

  16. Discussion

  17. < Excellent > WAI↓ Depression Stress response Quantitative workload Stressor WAI↓ Depression < Poor>

  18. Conclusion Poor group There is a tendency for the quantitative workload and other job stressors to exert an influence on the decline in WAI. Excellent group An increase in the symptoms of depression was linked to 　　 a　decline in WAI . We must consider these characteristics carefully, as it is thought that we might prevent the onset of mental disease by tailoring the management of stress depending on an individual’s WAI category.

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