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Table 2 Mean CES-D score and KOSS-SF total score at 1st, 2nd, 3rd survey

From: Changes of depression and job stress in workers after merger without downsizing

Variables 1st
Mean (SD) or Mean(95% C.I)
2nd
Mean (SD) or Mean(95% C.I)
3rd
Mean (SD) or Mean(95% C.I)
F P * Post hoc
CES-D Score 7.75(7.94) 10.42(10.06) 8.90(9.03) 9.255 < 0.001 A < B, B > C, A < C
Adjusted CES-D 7.66(5.97–9.36) 11.03(8.92–13.14) 9.52(7.57–11.47) 0.466 0.628 A < B, B > C, A < C
KOSS-SF score 45.03(12.23) 50.19(10.69) 51.50(11.93) 40.195 < 0.001 A < B, B < C, A < C
Adjusted KOSS-SF 46.13(43.57–48.70) 50.43(48.14–52.72) 51.51(48.94–54.08) 3.192 0.045 A < B, B < C, A < C
  1. A 1st survey April 2014, B 2nd survey April 2015, C 3rd survey April 2016, SD Standard deviation, C. I Confidence interval
  2. * P value was calculated by repeated measure ANOVA
  3. By Bonferroni correction, p < 0.05