Table 3

Weighted, adjusted OR and 95% CIs for the effects of covariates on ‘hardcore’ smoking (n=71 650)

VariablesCrude OR (95% CI)p ValueAdjusted OR (95% CI)p Value
Survey year
 20011.000.0091.000.550
 20040.82 (0.69 to 0.96)0.95 (0.78 to 1.15)
 20070.82 (0.68 to 0.98)1.10 (0.89 to 1.36)
 20100.76 (0.64 to 0.90)0.95 (0.78 to 1.17)
SEIFA
 Bottom-two SEIFA quintiles1.00<0.0011.00<0.001
 Top-two SEIFA quintiles0.37 (0.32 to 0.42)0.64 (0.50 to 0.82)
Age1.00 (1.00 to 1.00)0.4140.99 (0.99 to 1.00)<0.001
Sex
 Female1.00<0.0011.00<0.001
 Male1.38 (1.23 to 1.55)1.57 (1.38 to 1.77)
ATSI Status
 Non-ATSI1.00<0.0011.00<0.001
 ATSI3.17 (2.36 to 4.25)2.02 (1.49 to 2.74)
Main language spoken
 English1.00<0.0011.00<0.001
 Language other than English0.53 (0.39 to 0.73)0.54 (0.39 to 0.77)
Migrant (not born in Australia)
 No1.000.0231.000.047
 Yes0.85 (0.74 to 0.98)1.17 (1.00 to 1.37)
Employment status
 Employed1.00<0.0011.00<0.001
 Student0.35 (0.22 to 0.57)0.31 (0.18 to 0.51)
 Not employed—in workforce2.45 (1.92 to 3.13)1.76 (1.37 to 2.26)
 Not employed—not in workforce1.15 (1.02 to 1.30)1.07 (0.90 to 1.26)
 Other1.40 (0.87 to 2.26)1.26 (0.78 to 2.03)
Marital status
 Married/de facto1.00<0.0011.00<0.001
 Widowed/divorced/separated2.08 (1.81 to 2.37)1.90 (1.64 to 2.21)
 Never married1.29 (1.10 to 1.51)1.18 (0.99 to 1.42)
Single parents with dependent children
 No1.00<0.0011.000.049
 Yes1.88 (1.53 to 2.30)1.25 (1.00 to 1.57)
Education
 High school or lower1.00<0.0011.00<0.001
 Diploma or certificate0.70 (0.62 to 0.79)0.69 (0.61 to 0.78)
 University degree0.20 (0.16 to 0.26)0.27 (0.21 to 0.35)
Survey year by SEIFA interaction
 20011.000.025
 2004×top-two SEIFA quintiles0.80 (0.57 to 1.12)
 2007×top-two SEIFA quintiles0.61 (0.42 to 0.89)
 2010×top-two SEIFA quintiles0.63 (0.44 to 0.90)
  • SEIFA, Socio-Economic Indexes for Areas.