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. Author manuscript; available in PMC: 2013 Sep 27.
Published in final edited form as: Psychother Psychosom. 2009 Mar 24;78(3):172–181. doi: 10.1159/000209348

Table 4.

Conditional model including study type in analyses of antidepressant response and remission rates.

Response
Fixed Effect Coefficient se t ratio p value
Intercept −0.096 0.074 −1.30 0.198
Comparator 0.59 0.88 6.77 < 0.001
Random Effect Variance Component df χ2 p value
Intercept 0.136 85 503.20 < 0.001
Remission
Fixed Effect Coefficient se t ratio p value
Intercept −0.959 0.266 −3.610 0.001
Comparator 0.710 0.302 2.348 0.025
Random Effect Variance Component df χ2 p value
Intercept 0.180 32 277.831 < 0.001

‘Comparator’ = dummy variable coded ‘1’ for comparator trials and ‘0’ for placebo-controlled trials. ‘Intercept’ reflects reference category of placebo-controlled trials.