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Table 1 Demographics and health variables stratified by smoking habits among the patients included (N = 128) at baseline

From: Smoking among inpatients in treatment for substance use disorders: prevalence and effect on mental health and quality of life

   Non-smoker Smoker p
n = 32 n = 96  
Demographics
 Sex (female) n (%) 11 (34) 23 (24) 0,248e
 Age (years) Median (IQRd) 49 (37–58) 53 (44–57) 0.411f
 13 years of education n (%) 23 (96) 44 (63) 0.002e
 16 years of education n (%) 16 (62) 9 (13) < 0.001e
 In paid work n (%) 6 (23) 12 (16) 0.451e
 > low physical activity levela n (%) 14 (61) 24 (36) 0.041e
Mental health background
 ASRS score > cutoff n (%) 11 (44) 33 (46) 0.831e
 Anxietyb n (%) 15 (48) 64 (67) 0.068e
 Depression, lifetime n (%) 24 (77) 71 (74) 0.700e
 Childhood trauma n (%) 18 (72) 52 (72) 0.983e
 Adulthood trauma n (%) 17 (68) 47 (65) 0.805e
 PTSD n (%) 4 (13) 20 (21) 0.296e
 Suicide attempt n (%) 4 (13) 33 (34) 0.018e
Alcohol-related variablesc
 Parent with alcohol problems n (%) 16 (57) 45 (53) 0.699e
 Age first drink (years) Median (IQRd) 16 (15–17) 15 (13–16) 0.028f
 AUDIT score Median (IQRd) 28 (26–34) 30 (24–34) 0.874f
Substance dependence
 Alcohol n (%) 28 (88) 85 (89) 0.874e
 Other substance n (%) 9 (28) 28 (29) 0.910e
 Alcohol and other substance n (%) 5 (16) 17 (18) 0.787e
Treatment clinic
 Clinic 1 n (%) 21 (66) 40 (42) 0.058
 Clinic 2 n (%) 6 (19) 26 (27)
 Clinic 3 n (%) 5 (16) 30 (31)
  1. aInternational physical activity questionnaire short version (IPAQ-S), low vs. moderate/high level. bAnxiety: panic disorder, agoraphobia, social phobia or generalized anxiety disorder. cAlcohol-dependent patients only (n = 113). dInter-quartile percentiles (25 and 75%). eChi-square tests. fMann-Whitney U tests