An Analysis on Danish Micro Data - School of Economics and ...

6.5 Dosages of antidepressant use in the last five years
Again, it could be interesting to include a measure of the dosages of the antidepressant use, which
provides some kind of comparison to the results from the random effects probit estimation.
Similarly to section 6.2, a measure of the dosages taken the last five years is included in the
regression as the explanatory variable. The results are displayed in table 9.
Table 9 Marginal effects – dosages of antidepressant use the last five years as explanatory variable
Probit yr 2003
(1)
Pooled probit
(2)
variable dy/dx s.e. dy/dx s.e.
cons_antidep 0.0000 0.0001 0.0000 0.0000
mtx 0.0002 0.0003 0.0001 0.0002
wageinc 0.0000*** 0.0000 0.0000*** 0.0000
age -0.0143 0.0152 -0.0048 0.0090
ab02† 0.1381* 0.0750 0.0044 0.0811
ab36† -0.0311 0.1118 -0.0746 0.0704
ab79† 0.0714 0.0753 -0.0627 0.0596
ab1014† 0.0323 0.0737 -0.0700 0.0515
single† -0.0177 0.0651 -0.1129*** 0.0392
ieland1† 0.1274 0.1665 0.1707* 0.0898
ieland2† 0.1796** 0.0869 0.2245*** 0.0739
short† 0.0543 0.0621 0.0604* 0.0326
higher† 0.0048 0.0646 -0.1148* 0.0669
agesq 0.0001 0.0002 0.0000 0.0001
useofmedicin 0.0000 0.0000 -0.0001*** 0.0000
u -0.0324 0.0209 -0.0164 0.0133
ohat 0.0000 0.0001 0.0000 0.0000
No. of obs.
Pseudo R 2
580
0.7211
Note: † For dummy variables dy/dx is for discrete change from 0 to 1
Time dummies are included in the pooled regression.
The reference categories are less developed county of origin, and basic level of education.
The significance levels are indicated as follows: 10 % - *, 5 % - **, 1 % - ***.
2364
0.6668
The variable in bold, cons_antidep, measures the dosage of antidepressants taken the last 5 years. In
both estimations the marginal effect of this variable is minimal and insignificant. Again, the pooled
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