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Table 1 Associations between e-cigarette access and demographics, smoking and drinking status, and parental smoking

From: Associations between e-cigarette access and smoking and drinking behaviours in teenagers

   Sample distribution Accessed e-cigarettes
   % n % Pa AOR (95% CIs)b P
All   100.0 16193 19.2    
Gender (Ref) Female 52.9 8569 17.7    
  Male 47.1 7624 20.8 <0.001 1.64 (1.47-1.82) <0.001
Age (Ref) 14 20.5 3318 16.3    
  15 45.4 7350 17.9    
  16 31.7 5141 22.1    
  17 2.4 384 28.4 <0.001   ns
Deprivation quintile (least deprived, Ref) 1 12.5 2022 14.4    
  2 15.1 2447 16.4    
  3 15.8 2555 17.9    
  4 18.7 3035 21.8    
  (most deprived) 5 37.9 6134 21.0 <0.001   ns
Smoking status (Ref) Never smoked 61.2 9699 4.9    <0.001
  Tried but didn’t like it 19.4 3082 22.6   5.10 (4.44-5.86) <0.001
  Ex-smoker 5.1 803 50.7   17.94 (14.87-21.63) <0.001
  Smoke when drinking 5.1 805 43.4   14.16 (11.62-17.26) <0.001
  Regular light smoker 2.9 457 67.2   36.55 (28.64-46.64) <0.001
  Regular heavy smoker 6.4 1012 75.8 <0.001 50.28 (40.97-61.71) <0.001
Parent/guardian smokes (Ref) No 59.4 9435 13.2    
Yes 40.6 6454 27.4 <0.001 1.53 (1.37-1.70) <0.001
Drinking status (Ref) Non-drinker 31.7 5067 9.3    <0.001
  Occasional moderate 13.2 2115 8.2   0.96 (0.77-1.19) 0.719
  Regular moderate 1.1 175 13.7   0.91 (0.53-1.57) 0.744
  Occasional, binge 38.0 6066 21.8   1.46 (1.26-1.69) <0.001
  Regular, binge 15.9 2544 41.9 <0.001 1.89 (1.59-2.24) <0.001
  1. aChi squared analysis; bHierarchichal backward conditional logistic regression including all variables shown with school entered in the first block, included sample n = 15,400. AOR = adjusted odds ratio; CIs = confidence intervals; Ref = reference category; ns = not significant.