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Table 2 Results of the random effects model (DCE)

From: Preferences for treatment of Attention-Deficit/Hyperactivity Disorder (ADHD): a discrete choice experiment

Item

Characteristic and dimension

Coefficient

SE (coeff)

Significance

Partial log likelihood when item omitted

1

Duration of effect: long (all day)

1.437

0.169

***

-797.3

 

Duration of effect: short (half day)

-1.437

0.169

***

 

2

Side effects: none

0.470

0.147

**

-756.2

 

Side effects: loss of weight may occur

-0.470

0.147

**

 

3

Dosage/dosage form: variable, combinable

0.468

0.155

**

-755.3

 

Fixed dosage and dosage form

-0.468

0.155

**

 

4

Discretion: intake not obvious

0.727

0.143

***

-763.7

 

Discretion: intake obvious

-0.727

0.143

***

 

5

Emotional state: no mood swings

1.644

0.167

***

-813.6

 

Emotional state: mood swings may occur

-1.644

0.167

***

 

6

Social situation: no problems with friends, hobbies

3.162

0.169

***

-1055.1

 

Social situation: problems with friends, hobbies

-3.162

0.169

***

 
 

Model constant

-4.144

0.294

***

 
  1. ***: p < 0.001, **: p < 0.01, *: p < 0.05
  2. Model parameters:
  3. Wald Chi2 (df = 6) = 379.67
  4. Log likelihood = -750.8
  5. Prob > Chi2 = 0.0000 (i.e. p < 0.001, ***)
  6. Prob >= Chibar2 = 0.495