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Table 3 Regressions predicting EQ-5D-3L index value, EQ-VAS, and HSCL-25 scores

From: Quality of life among patients seeking treatment for substance use disorder, as measured with the EQ-5D-3L

A) Univariate regressions
  Dependent variables
EQ-5D-3L value EQ VAS score HSCL-25 score
Coefficients n Estimate p Estimate p Estimate p
Demographics
 Sex (dummy for female) 60 −0.1001 0.0396* −5.6470 0.0965 0.3950 0.0000*
 Secondary education (10–13 years) 123 − 0.0301 0.5872 5.0868 0.1946 0.1010 0.3081
 Higher education (> = 14 years) 6 0.0431 0.7494 2.6065 0.7847 0.0004 0.9988
 Age (years) 178 0.0002 0.9835 0.3630 0.4754 −0.0099 0.4432
Drug-related diagnoses (ICD-10)
 F10.2 Alcohol 57 −0.0294 0.7231 3.4368 0.5060 0.1007 0.4952
 F11.2 Opioids 57 −0.0418 0.6093 3.0238 0.5533 0.2383 0.0993
 F12.2 Cannabis 105 −0.0627 0.4276 −7.7067 0.1152 0.1950 0.1639
 F13.2 Sedatives 89 0.0190 0.8056 1.2811 0.7897 0.0239 0.8620
 F14.2 Cocaine 26 0.2277 0.0214* 14.5098 0.0186* −0.4539 0.0097*
 F15.2 Other stimulants 78 0.1366 0.0692 6.0409 0.1998 −0.1518 0.2602
 F19.2 Mixed drug abuse 40 −0.0137 0.8807 9.5541 0.0913 0.0811 0.6192
Clinical diagnoses (ICD-10)
 F31.x Bipolar 7 0.1687 0.4772 22.1364 0.1322 −0.1713 0.6857
 F32.x Major depression, single 20 0.1929 0.1449 1.9571 0.8137 −0.3154 0.1812
 F33.x Major depression, recurring 30 0.0392 0.7290 2.2531 0.7492 0.0049 0.9804
 F40.x Phobic anxiety 23 0.3088 0.0428* 10.8077 0.2601 −0.5100 0.0609
 F41.x Other anxiety 14 0.1958 0.1611 5.6210 0.5210 −0.2912 0.2431
 F43.1 PTSD 27 0.1417 0.2510 4.5545 0.5554 −0.1479 0.5025
 F60.x Personality disorder 22 −0.0939 0.4220 −1.5708 0.8298 0.0605 0.7719
 F90.x ADHD 12 0.0736 0.6338 3.1346 0.7449 0.0688 0.8028
B) Multivariate regressions
   EQ-5D-3L value EQ VAS score HSCL-25 score
Coefficients   Estimate p Estimate p Estimate p
(Intercept) 178 0.5892 0.0000* 61.4733 0.0000* 2.0964 0.0000*
Female 60 −0.1340 0.1083 −8.9640 0.0925 0.4198 0.0053*
F14.2 Cocaine 26 0.2537 0.0089* 15.5018 0.0121* −0.4978 0.0039*
F40.x Phobic Anxiety 23 0.3528 0.0173 13.4907 0.1484 −0.5962 0.0228*
  1. HSCL Hopkins Symptom Checklist, ICD-10 International Classification of Diseases version 10, PTSD Post-Traumatic Stress Disorder, ADHD Attention Deficit Hyperactivity Disorder, * indicates statistical significance (p <=0.05)
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