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Table 1 Description of the independent and dependent variables (outcome variable) measured at the four times points

From: Life satisfaction in Norwegian medical doctors: a 15-year longitudinal study of work-related predictors

Predictor variables T1
Final year of graduation
T2
4 years after graduation
T3
10 years after graduation
T4
15 years after graduation
Age, years (continuous) 28 (2.83)    
Gender, female, % 56    
Having children, %   55 82 91
Married/cohabitating, %   78 83 87
Perceived social support   14.72 (6.24) 20.38 (2.89) 20.32 (2.85)
Physical activity   1.80 (1.01) 1.89 (1.01) 2.17 (1.02)
Religious activity, %   27 26 28
Use of alcohol to cope with tension, %   8 11 12
Hazardous drinking, %   13 13 15
Neuroticism 3.52 (2.23)    
Extraversion 5.46 (2.36)    
Reality weakness 1.44 (1.59)    
Conscientiousness 3.09 (2.07)    
Life events   1.05 (1.19) 0.72 (0.90) 0.55 (0.88)
Contextual work-related variables
 Emotional pressure   2.07 (0.65) 1.86 (0.58) 1.79 (0.53)
 Time pressure   2.41 (0.69) 2.25 (0.68) 2.16 (0.67)
 Fear of complaints and criticism   2.11 (0.67) 1.93 (0.65) 1.80 (0.56)
 Work–home interference   2.46 (1.00) 2.42 (1.00) 2.33 (0.99)
 Number of hours at work per week   45.29 (9.91) 42.99 (8.89) 42.21 (10.96)
 Number of hours asleep when on call   4.52 (2.79) 5.38 (6.36) 6.41 (7.14)
 Perceived job demands   1.96 (0.96) 1.92 (0.99) 1.92 (0.97)
 Autonomy   2.28 (0.71) 2.19 (0.70) 2.22 (0.68)
 Colleague support   10.00 (2.42) 9.76 (2.36) 10.13 (2.38)
Outcome variable
 Life satisfaction (3 items)   4.55 (0.82) 4.60 (0.81) 4.62 (0.81)
  1. Data are shown as percentages or means (SD) where not otherwise specified