Table 3

 Adjusted odds ratios and 95% confidence intervals from logistic regression of the probability of having low self-efficacy and having no intention to quit on socioeconomic status indicators and other covariates

CovariatesLow self-efficacyNo intention to quit
Female1.27 (1.15 to 1.41)0.86 (0.77 to 0.96)
Age
    18–2411
    25–391.38 (1.15 to 1.66)1.13 (0.93 to 1.38)
    40–541.74 (1.45 to 2.08)1.84 (1.52 to 2.22)
    55+1.95 (1.61 to 2.37)3.19 (2.62 to 3.89)
HIS1.33 (1.28 to 1.38)1.18 (1.13 to 1.22)
Low self-efficacy1.01 (1.00 to 1.02)
Country
    USA11
    Canada0.64 (0.55 to 0.74)0.65 (0.56 to 0.77)
    UK1.70 (1.47 to 1.96)1.51 (1.30 to 1.75)
    Australia0.96 (0.83 to 1.12)0.94 (0.80 to 1.10)
Education
    Low1.35 (1.19 to 1.53)1.40 (1.23 to 1.60)
    Medium1.02 (0.90 to 1.16)1.20 (1.06 to 1.37)
    High11
Income
    Low1.03 (0.90 to 1.19)1.23 (1.06 to 1.42)
    Medium0.95 (0.83 to 1.08)1.07 (0.93 to 1.23)
    High11
    No information0.96 (0.78 to 1.19)1.34 (1.08 to 1.66)