Table 2

Odds of current smoking in school and home environments

 Model 1Model 2Model 3
 HomeSchoolHomeSchoolHomeSchool
 OR 95% CIOR 95% CIOR 95% CIOR 95% CIOR 95% CIOR 95% CI
Tobacco outlet density
 1 (density=0)1.001.001.001.001.001.00
 2 (lowest density)1.16 (0.98 to 1.37)0.85 (0.54 to 1.34)1.10 (0.90 to 1.34)0.77 (0.58 to 1.04)1.35 (1.10 to 1.67)*0.77 (0.61 to 0.98)*
 31.32 (1.11 to 1.58)*0.77 (0.49 to 1.23)1.11 (0.91 to 1.37)0.69 (0.51 to 0.92)*1.41 (1.11 to 1.79)*0.70 (0.55 to 0.89)*
 41.42 (1.19 to 1.70)*0.92 (0.58 to 1.47)1.14 (0.93 to 1.39)0.73 (0.54 to 0.99)*1.41 (1.11 to 1.79)*0.73 (0.56 to 0.94)*
 5 (highest density)1.44 (1.19 to 1.73)*0.83 (0.52 to 1.32)1.14 (0.93 to 1.41)0.74 (0.55 to 0.99)*1.47 (1.13 to 1.91)*0.75 (0.59 to 0.95)*
 Trend1.09 (1.05 to 1.13)*1.00 (0.94 to 1.06)1.02 (0.98 to 1.07)0.97 (0.91 to 1.04)1.06 (1.00 to 1.12)*0.98 (0.92 to 1.04)
Class year
 Secondary 2 (age 13)1.001.001.001.001.001.00
 Secondary 4 (age 15)5.06 (4.37 to 5.87)*5.05 (4.36 to 5.85)*5.48 (4.65 to 6.47)*5.48 (4.64 to 6.47)*5.49 (4.65 to 6.49)*5.50 (4.66 to 6.50)*
Sex
 Female1.001.001.001.001.001.00
 Male1.30 (1.16 to 1.47)*1.30 (1.15 to 1.46)*1.40 (1.22 to 1.61)*1.40 (1.22 to 1.60)*1.39 (1.21 to 1.60)*1.38 (1.21 to 1.59)*
Ethnicity
 White1.001.001.001.001.001.00
 Non-white1.28 (1.04 to 1.56)*1.30 (1.06 to 1.59)*1.32 (1.00 to 1.74)*1.32 (1.00 to 1.75)*1.37 (1.04 to 1.80)*1.37 (1.04 to 1.80)*
Free school meals
 Yes1.001.001.001.00
 No0.72 (0.60 to 0.86)*0.71 (0.60 to 0.85)*0.73 (0.61 to 0.88)*0.73 (0.61 to 0.87)*
Self-perceived family wealth
 Very /quite well off1.001.001.001.00
 Average—not at all well off1.01 (0.89 to 1.14)1.01 (0.89 to 1.14)1.00 (0.88 to 1.13)1.00 (0.88 to 1.13)
Family structure
 Single parent1.001.001.001.00
 Step-parent (and one parent)1.04 (0.87 to 1.25)1.04 (0.87 to 1.24)1.04 (0.87 to 1.25)1.03 (0.86 to 1.24)
 Both parents0.68 (0.59 to 0.78)*0.67 (0.58 to 0.77)*0.68 (0.59 to 0.78)*0.67 (0.58 to 0.77)*
 Other1.32 (0.88 to 1.97)1.30 (0.87 to 1.95)1.29 (0.86 to 1.93)1.26 (0.84 to 1.89)
Parental smoking status
 No parent smokes1.001.001.001.00
 At least one parent smokes daily3.39 (2.99 to 3.85)*3.42 (3.01 to 3.89)*3.31 (2.91 to 3.77)*3.33 (2.92 to 3.78)*
Urban/rural status
 Urban1.001.00
 Rural1.52 (1.28 to 1.81)*1.33 (1.14 to 1.55)*
Carstairs quintile
 1 (least deprived)1.001.00
 21.03 (0.81 to 1.30)1.04 (0.83 to 1.31)
 31.26 (1.01 to 1.58)*1.30 (1.05 to 1.60)*
 41.14 (0.90 to 1.45)1.20 (0.96 to 1.51)
 5 (most deprived)1.27 (0.99 to 1.62)1.35 (1.07 to 1.69)*
  • 95% CIs in brackets, *p<0.05.