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Table 2 Percentages and means of the primary and secondary outcomes at baseline, 3 and 12 months

From: Effectiveness of a problem-solving based intervention to prolong the working life of ageing workers

  Intervention group Business as usual group
  Baseline 3 months 12 months Baseline 3 months 12 months
  N = 82 N = 55 N = 59 N = 66 N = 58 N = 53
Primary outcomes             
Work ability (mean, SD) 39.4 (5.2) 38.9 (5.2) 38.7 (5.2) 38.9 (5.6) 38.9 (5.1) 38.9 (4.6)
Poor (%) 7   4   4   6   0   2  
Moderate (%) 21   22   22   22   31   23  
Good (%) 50   55   56   52   51   58  
Excellent (%) 22   18   18   20   18   17  
Vitality             
Never (%) 0   0   0   0   0   0  
Seldom (%) 2   2   2   0   3   0  
Sometimes (%) 16   20   20   17   16   25  
Mostly (%) 74   70   73   80   71   68  
Always (%) 8   7   5   3   10   8  
No productivity loss (%) 43   42   36   43   44   34  
Secondary outcomes (mean, (SD))          
Perceived fatigue 18.40 (9.2)    19.52 (10.4) 19.18 (9.9)    21.55 (11.4)
Job content             
Job demands 31.66 (4.7)    31.71 (5.4) 32.67 (6.6)    31.15 (5.5)
Decision authority 34.51 (6.4)    34.37 (5.9) 35.60 (7.2)    34.94 (7.4)
Skill discretion 38.77 (4.4)    38.31 (4.0) 38.26 (4.9)    37.21 (4.4)
Support from supervisor 10.95 (2.2)    10.61 (2.1) 11.68 (2.3)    11.71 (2.7)
Co-worker support 12.51 (1.7)    12.22 (1.5) 12.68 (1.8)    12.70 (1.5)
Perceived work attitude 72.22 (14.0)    27.49 (13.5) 70.00 (13.7)    68.30 (14.0)
Self-efficacy 67.01 (6.6)    72.03 (13.0) 66.16 (8.9)    64.70 (10.5)
Willingness to exert effort in completing the behaviour 25.98 (3.2)    25.11 (3.2) 25.44 (3.6)    24.58 (4.4)
Persistence in the face of adversity 25.35 (2.9)    25.23 (2.9) 24.78 (3.6)    24.79 (3.7)
Willingness to initiate behaviour 15.67 (2.8)    15.48 (2.8) 15.93 (3.1)    15.34 (3.4)
Work engagement total 4.41 (0.9)    4.50 (0.9) 4.29 (1.1)    4.44 (0.8)
Vigour 4.55 (0.9)    4.55 (1.0) 4.46 (1.0)    4.62 (0.9)
Dedication 4.76 (1.0)    4.84 (0.9) 4.70 (1.2)    4.77 (1.0)
Absorption 3.94 (1.2)    4.11 (1.1) 3.69 (1.2)    3.94 (0.9)