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Table 1 Socio-demographic and clinical characteristics of patients with current tobacco use disorder (TUD) and never-smokers

From: SLC6A4STin2 VNTR genetic polymorphism is associated with tobacco use disorder, but not with successful smoking cessation or smoking characteristics: a case control study

Variables Smokers (n = 185) Never-smokers (n = 175) χ2/F/Ψ df pvalue
Age (mean ± SD) 48.7 (±10.5) 45.7 (±7.7) 9.78 1/358 p < 0.002
Gender Female/male 119/66 120/55 0.73 1 0.394
Self-reported ethnicity      
Caucasian 129 119 3.55 1 0.315
African 19 17    
Asian 5 12    
Others 32 27    
Years of education 9.64 (±5.38) 15.98 (±4.94) 135.78 1/358 p < 0. <0.001
Employment status      
Employed or student versus unemployed or disability support 155/30 175/0 0.293 - <0.001
Stable relationship versus other      Pp0 0.109
Marital status 113/72 121/54 2.57 1  
BMI (kg/m 2 ) 26.6 (±5.9) 26.5 (±4.2) 0.20 1/358 0.887
Mood disorders Yes/no 95/90 62/113 9.27 1 0.002
ASSIST sedative use risk Yes/no 14/171 0/175 0.196 - <0.001
ASSIST alcohol use risk Yes/no 33/152 0/175 0.309 - <0.001
ASSIST ALL Yes/no 44/141 0/175 0.363 - <0.001
  1. Results of analyses of variance (ANOVAS: age, BMI), χ2 test (ethnicity, gender, marital status, mood disorders) or Fisher exact probability test (employment status, all ASSIST ratings).
  2. Results are shown as mean ± SD.
  3. BMI: Body Mass Index.
  4. ASSIST: Alcohol, Smoking and Substance Involvement Screening Test.
  5. ASSIST ALL: sedative or alcohol use risk.