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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.