Table 4

Determinants of appropriate intention-to-treat decisions and their interaction with profession of the respondent (expressed as odds ratios)

Variables	Odds ratio	99% CI
Logistic regression: r²=10.1. Psychotherapists and psychiatrist scored extreme, psychotherapists were chosen as the referent category in order to obtain more odds ratios above 1.
*p<0.01; †p<0.05 (only 99% CI given in the table).
‡Note that interaction terms were included in the model. The main effects cannot be interpreted alone (see tables 2 and 3).
Severity of depression
Subthreshold	1.0	Referent
Mild	1.0	0.8 to 1.4
Moderate	2.2*	1.5 to 3.3
Severe	1.9*	1.3 to 2.9
Exposed to stressors	0.7*	0.6 to 0.9
Chronic or recurrent depression	1.3*	1.1 to 1.6
Profession‡
General practitioner	0.6	0.4 to 0.8
Psychiatrist	0.5	0.3 to 0.7
Clinical psychologist	0.9	0.6 to 1.3
Psychotherapist	1.0	Referent
Psychotic features‡	0.3	0.2 to 0.7
Interaction term: profession and psychotic features†
General practitioner	2.1	0.9 to 4.9
Psychiatrist	9.0*	3.3 to 24.7
Clinical psychologist	0.9	0.4 to 1.9
Psychotherapist	1.0	Referent
Melancholic features‡	0.8	0.5 to 1.2
Interaction term: profession and melancholic features†
General practitioner	1.4	0.8 to 2.4
Psychiatrist	3.4*	1.9 to 6.0
Clinical psychologist	0.8	0.5 to 1.3
Psychotherapist	1.0	Referent
No social resources‡	0.4	0.3 to 0.6
Interaction term: profession and no social resources†
General practitioner	2.1*	1.2 to 3.6
Psychiatrist	4.8*	2.7 to 8.4
Clinical psychologist	1.3	0.7 to 2.2
Psychotherapist	1.0	Referent
Alcohol abuse‡	0.6	0.4 to 0.9
Interaction term: profession and alcohol abuse†
General practitioner	0.7	0.4 to 1.4
Psychiatrist	0.5*	0.3 to 0.9
Clinical psychologist	0.6	0.3 to 1.1
Psychotherapist	1.0	Referent