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Table 1 Overview of variables and measuring time points

From: Efficacy of a smartphone-based intervention — “Holidaily” — promoting recovery behaviour in workers after a vacation: study protocol for a randomised controlled trial

  Measuring time points
  Two weeks pre-vacation (T1) Last working day (T2) Mid of vacation (T3) First working day (T4) Two weeks post-vacation (T5) Four weeks post-vacation (T6a)
Measures
Demographics      
Vacation specifics    
Primary outcome
 Work-related rumination
  Work-related rumination (IS)
  - cognitive irritation
Secondary outcomes
 Mental health
  Symptoms of depression (PHQ-8)   
  Insomnia severity (ISI)  
 Work related health
  Emotional exhaustion (MBI)   
  Work-related rumination questionnaire (WRRQ)       
  - affective rumination  
  - problem-solving pondering  
Recovery experiences (DRAMMA-Q)
  - mental detachment
  - relaxation
  - autonomy
  - mastery
  - meaning
  - affiliation
Other variables
 Work characteristics
  Unfinished tasks   
  Time pressure (ISTA)   
  Work availability during vacation    
  Working overtime      
  Task variety (WDQ)      
  Social support at work (SzSU)      
 Personal characteristics
  Work engagement (UWES)  
  Work performance (OCB)   
  Boundary management (WLI)      
  Work-Life-Balance (TKS-WLB)   
  Life-satisfaction (SWLS)      
  Resilience (RS)     
  Vitality (PANAS)
  Physical health      
  Wellbeing  
  Need for recovery (NFR)   
  Creativity (objective) (TTCT)    
  Creativity (subjective)   
Potential mediator and moderator
 Mediator
  Health behaviour       
  Recreational activities (REAQ)    
 Moderator
  Technical aspects
   User experience (AttrakDiff2)     
  1. a only intervention group