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Table 1 Comparison of baseline characteristics among participants in intervention and control groups

From: Guided web-based treatment program for reducing cannabis use: a randomized controlled trial

 Intervention group (n = 151)Control group (n = 152)Test valuep-value
Women (%)37.727.6χ2(1) = 3.5240.60
Mean age (sd)27.7 (7.8)27.1 (6.5)t(301) = − 0.6990.485
Civil state
 Single (%)58.953.9χ2(4) = 4.9330.296
 Partner, not married (%)22.528.9  
 Married/registered partnership (%)13.214.5  
 Divorced/separated (%)5.32.0  
 Widow/widower (%)00.7  
Financial situation
 Employment (%)60.363.8χ2(7) = 6.6620.465
 Study allowance (%)19.215.1  
 Pension (%)0.70.7  
 Sickness/activity compensation (%)4.69.2  
 Sickness benefits (%)3.30.7  
 Unemployment benefits (%)1.30.7  
 Social assistance (%)4.02.6  
 Other (%)6.67.2  
Highest completed education
 Unfinished primary school, grade school or equivalent (%)2.66.6χ2(4) = 5.4370.245
 Primary school/grade school (%)17.916.4  
 Upper secondary school, vocational school or equivalent (%)57.659.2  
 University/College (%)18.517.1  
 Other education (%)3.30.7  
Living situation
 Alone (%)25.827.0χ2(6) = 5.3990.494
 With parents (%)15.214.5  
 With husband/wife/partner/cohabitant only (%)12.620.4  
 With husband/wife/partner/cohabitant and children (%)9.99.9  
 With children only2.61.3  
 Shifting conditions (%)28.524.3  
 Other (%)5.32.6  
Substance use and dependence
 Used cannabis every week in the past 6 months (%)100.0100.0  
 Cannabis use disorder according to DSM-5 (%)100.0100.0  
 Used other illicit drugs (%)85.484.9χ2(1) = 0.0190.891
 Hazardous alcohol use (%)16.613.2χ2(1) = 0.6920.406
Help-seeking
 Sought professional help/treatment for cannabis use in the past 12 months (%)14.613.2χ2(1) = 0.1260.722
 Talked to relatives or friends about reducing or ending cannabis use in the past 12 months (%)79.578.3χ2(1) = 0.0630.801
Motivation
 Motivation to change cannabis use, mean score on a visual analog scale (VAS) 0–100 (sd)73.5 (25.5)74.2 (24.5)t(301) = 0.2320.816
 VAS score: 0–25 (%)6.66.6χ2(3) = 7.6670.053
 VAS score: 26–50 (%)13.29.2  
 VAS score: 51–75 (%)19.933.6  
 VAS score: 76–100 (%)60.350.7  
Anxiety and depression
 Moderate or severe anxiety GAD-7 ≥ 10 (%)41.739.5χ2(1) = 0.1590.690
 Moderate or depression MADRS ≥ 20 (%)62.358.6χ2(1) = 0.4330.510