Table 6

Modelled estimates (95% confidence intervals) for time period within region

BaselineFollow-up
Cotinine concentration*
Republic of Ireland35.8 (31.8 to 39.2)10.2 (6.8 to 13.6)
Northern Ireland35.2 (27.3 to 43.7)23.3 (15.3 t 32.4)
Rate ratis for respiratory symptoms
Republic of Ireland1.33 (1.14 to 1.54)0.98 (0.83 to 1.16)
Northern Ireland0.67 (0.39 to 1.17)0.83 (0.50 to 1.36)
Rate ratios for sensory symptoms
Republic of Ireland1.19 (1.02 to 1.39)0.69 (0.57 to 0.85)
Northern Ireland1.09 (0.75 to 1.56)0.65 (0.44 to 0.97)
  • * Adjusted for region, time period, living with smoker, hours worked in past 2 days, age, sex, interaction between region and time period, and constant, all set to average values.

  • † Adjusted for region, time period, age, sex, and interaction between region and time period all set to average values.

  • ‡ Adjusted for region, time period, age, sex, and hours worked in past week all set to average values.