Table 2

Prevalence (%) and 95% confidence interval (CI) of driver’s tobacco consumption by vehicle type, driver and vehicle variables and context in the city of Barcelona, Spain

Total (n=2442)Private (n=1736)Commercial (n=482)Taxi (n=224)
% (95% CI)p Value% (95% CI)p Value% (95% CI)p Value% (95% CI)p Value
Sex0.0310.2230.3510.708
 Male5.2 (4.2 to 6.2)4.2 (3.1 to 5.3)9.2 (6.5 to 11.9)2.3 (0.3 to 4.3)
 Female2.9 (1.5 to 4.3)2.9 (1.4 to 4.4)3.8 (0.7 to 18.9)0 (0.0 to 39.0)
Age0.0020.0010.9450.345
 18–34 years6.6 (4.6 to 8.6)6.1 (3.9 to 8.3)8.4 (3.6 to 13.2)5.3 (0.9 to 24.6)
 35–64 years4.3 (3.3 to 5.3)3.2 (2.2 to 4.2)9.4 (6.3 to 12.5)2.0 (0.1 to 3.9)
 ≥65 years0.7 (0.1 to 4.0)0.8 (0.1 to 4.4)0 (0.0 to 27.8)0 (0.0 to 65.8)
Socioeconomic status*0.6280.2770.5850.268
 Low5.2 (3.8 to 6.6)4.7 (3.1 to 6.3)7.4 (3.7 to 11.1)3.9 (0.1 to 7.7)
 Medium4.3 (3.0 to 5.6)3.1 (1.8 to 4.4)9.3 (5.3 to 13.3)1.2 (0.2 to 6.6)
 High4.5 (2.7 to 6.3)3.4 (1.5 to 5.3)11.1 (4.6 to 17.6)0 (0.0 to 8.8)
Driver's open window<0.001<0.0010.0010.089
 Yes9.3 (7.6 to 11.0)9.1 (6.9 to 11.3)12.3 (8.6 to 16.0)3.5 (0.5 to 6.5)
 No1.0 (0.5 to 1.5)0.6 (0.1 to 1.1)3.3 (0.7 to 5.9)0 (0.0 to 4.5)
Time0.0970.9470.0060.150
 Morning (8:00–11:00 h)5.3 (4.1 to 6.5)3.8 (2.6 to 5.0)11.6 (8.0 to 15.2)0.9 (0.2 to 4.7)
 Afternoon (17:00–19:00 h)3.8 (2.6 to 5.0)3.8 (2.4 to 5.2)4.1 (1.1 to 7.1)3.7 (0.1 to 7.3)
Weather0.2300.5060.8550.004
 Sunny4.3 (3.3 to 5.3)3.6 (2.6 to 4.6)9.1 (5.9 to 12.3)0.6 (0.1 to 3.3)
 Cloudy5.4 (3.8 to 7.0)4.3 (2.5 to 6.1)8.6 (4.3 to 12.9)7.1 (0.4 to 13.8)
  • * According to socioeconomic status of district.