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Table 4 Summary of hierarchical regression analysis: personal characteristics (block 1), exposure to traumatic events (block 2), occurrence (block 3) and social support (block 4) as predictors of post-traumatic stress distress, psychological distress, perceived fatigue, somatic complaints, job satisfaction

From: The impact of occupational hazards and traumatic events among Belgian emergency physicians

  IES total Psychological distress Perceived fatigue Somatic complaints Job Satisfaction
  ΔR 2 β Sign ΔR 2 β Sign ΔR 2 β Sign ΔR 2 β Sign ΔR2 β Sign
Block 1: demographics 0.00    0.04    0.03    0.03    0.01   
 Age   ,05 n.s   -,17 *   -,11 n.s   -,17 *   -,02 n.s
 Workschedule   ,02 n.s   ,08 n.s   ,13 n.s   ,05 n.s   -,11 n.s
Block 2: Traumatic events 0.12    0.06    0.02    0.02    0.01   
 Age   ,09 n.s   -,14 n.s   -,10 n.s   -,15 0.07   -,03 n.s
 Workschedule   ,01 n.s   ,07 n.s   ,12 n.s   ,04 n.s   -,10 n.s
 Traumatic events (work)   ,33 ***   ,25 ***   ,14 n.s   ,15 0.06   ,01 n.s
 Life events (personal life)   -,12 n.s   -,05 n.s   ,06 n.s   -,02 n.s   ,11 n.s
Block 3: occurrence 0.15    0.23    0.28    0.23    0.28   
 Age   ,02 n.s   -,22 ***   -,19 **   -,24 ***   ,07 n.s
 Workschedule   ,03 n.s   ,01 n.s   ,15 *   ,07 n.s   -,14 *
 Traumatic events (work)   ,23 ***   ,14 0.06   ,01 n.s   ,04 n.s   ,09 n.s
 Life events (personal life)   -,12 n.s   -,05 n.s   ,05 n.s   -,02 n.s   ,11 n.s
 Occurrence physical total   -,07 n.s   -,03 n.s   ,05 n.s   -,10 n.s   ,15 *
 Occurrence violence   ,17 *   ,17 *   ,29 ***   ,18 *   -,17 *
 Occurrence situations that can cause burnout   ,35 ***   ,44 ***   ,38 ***   ,44 ***   -,50 ***
Block 4: social support 0.02    0.02    0.03    0.07    0.16   
 Age   ,03 n.s   -,21 ***   -,17 *   -,21 ***   ,06 n.s
 Workschedule   ,02 n.s   ,09 n.s   ,14 *   ,06 n.s   -,11 0.09
 Traumatic events (work)   ,23 ***   ,14 *   ,01 n.s   ,05 n.s   ,06 n.s
 Life events (personal life)   -,12 n.s   -,05 n.s   ,04 n.s   -,03 n.s   ,11 n.s
 Occurrence physical total   -,04 n.s   -,00 n.s   ,10 n.s   -,03 n.s   ,08 n.s
 Occurrence violence   ,15 0.07   ,15 *   ,27 ***   ,15 *   -,11 0.09
 Occurrence situations that can cause burnout   ,30 ***   ,39 ***   ,34 ***   ,38 ***   -,34 ***
 Social support supervisor   ,01 n.s   ,03 n.s   ,13 n.s   ,22 **   ,14 n.s
 Social support colleagues   -,17 0.07   -,17 0.07   -,23 **   -,36 ***   ,33 ***
  R 2 model 0.29   R 2 model 0.35   R 2 model 0.36   R 2 model 0.35   R2 model 0.46  
  Adj R 2 model 0.25   Adj R 2 model 0.31   Adj R 2 model 0.33   Adj R 2 model 0.31   Adj R2 model 0.43  
  1. Abbreviations: ΔR 2 change in R2 values from one model to another, R 2 model R2 values in one model, Adj R 2 model adjusted R2 values in one model, β beta resulting standardized regression coefficients, Sign significant, n.s not significant, * Correlation is significant at the 0.05 level, ** Correlation is significant at the 0.01 level,*** Correlation is significant at the 0.001 level, IES total = post-traumatic stress distress, the bold data are significant
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