12
Table 1.
Descriptive statistics for the experimental population (all cases assessed as
active in the screening 5 November - 14 December 2007), averages
S-treated S- control t-test A-treated A-control t-test
Women
0.60
0.58
2.66
0.61
0.60
0.95
Age
44.3
(0.14)
44.7
(0.14)
-2.23
44.3
(0.20)
44.2
(0.20)
0.35
Compulsory
0.19
0.19
-1.04
0.18
0.19
-1.06
Upper secondary
0.52
0.53
-0.78
0.53
0.52
0.87
University
0.29
0.28
1.70
0.29
0.29
0.03
Sick-leave
history (days)
a
228
(4.26)
217
(4.03)
2.01
233
(6.18)
224
(5.87)
1.00
Unemployment
history (days)
b
493
(9.01)
493
(8.67)
0.01
492
(12.76)
495
(12.72)
-0.19
Disability benefit
history (days)
c
0.53
(0.01)
0.53
(0.01)
1.17
0.54
(0.01)
0.52
(0.01)
1.78
Unemployed (at sick-
spell start)
0.12
0.11
0.27
0.11
0.12
-0.31
Share
0.481
1.12
0.495
0.09
Sample size, N
6,517
7,030
3,224
3,293
Notes
: Standard deviation is given within parenthesis. t-test tests for mean differences
between the two groups (treated and controls).
a
Net days since 1995.
b
Gross days
from 2000.
