Table 3

OR of baseline characteristics for prolonged smoking abstinence in male smokers 2 years after randomisation

Prolonged smoking abstinence
OR (95% CI), univariate analysisOR (95% CI), multivariate analysis
Study arm
 Screen arm1.001.00
 Control arm1.40 (1.01 to 1.92)*1.45 (1.02 to 2.04)*
Age (T0)0.99 (0.96 to 1.03)
Level of education
 Lower education1.001.00
 Medium education1.27 (0.83 to 1.93)1.29 (0.84 to 2.00)
 Higher education1.84 (1.26 to 2.67)*1.66 (1.12 to 2.48)*
Age at starting smoking
 <15 years1.00
 16–19 years1.20 (0.77 to 1.87)
 >20 years0.73 (0.41 to 1.31)
No. of cigarettes smoked a day0.98 (0.96 to 1.00)
Smoking duration (years)1.00 (0.97 to 1.03)
Time to the first cigarette
 <5 min1.00
 5–30 min1.68 (0.97 to 0.93)
 30–60 min1.97 (1.10 to 3.51)*
 >60 min2.34 (1.26 to 4.33)*
Intention to stop smoking (T0)§
 Immotive1.001.00
 Precontemplator1.65 (1.02 to 2.69)*1.60 (0.98 to 2.61)
 Contemplator1.93 (1.30–2.87)*1.81 (1.20 to 2.73)*
 Preparator1.58 (0.96 to 2.60)1.11 (0.61 to 2.00)
  • * Statistically significant OR (p<0.05).

  • Low educational level indicates primary, lower secondary general or lower vocational education; medium educational level, intermediate vocational education or higher secondary education; high educational level, higher vocational education or university.

  • First question of the Fagerström Test for Nicotine Dependence (FTND).

  • § Immotive indicates no intention to quit smoking within 1 year; precontemplator, intention to quit smoking within 1 year, but not within 6 months; contemplator, intention to quit smoking within 6 months, but not within 1 month; preparator, intention to quit smoking within the next month.