Intended for healthcare professionals

Revised table 5

There was an inconsistency between the model coefficients for cotinine in table 5 and the adjusted cotinine concentrations reported in table 6. This is because the data in table 6 had been converted to SI units but the coefficients had not been changed in table 5. The correct coefficients are shown in this revised table. The authors state that they do not affect the conclusions of the paper.

Revised Table 5 Modelled changes in non-smokers. Figures are regression coefficients (95% confidence intervals) for cotinine concentrations and rate ratios (95% confidence intervals) for respiratory and sensory symptoms

 

 

Regression coefficient or rate ratio (95% CI)

P value

Cotinine concentrations (nmol/l) (n=131)

Region (Republic: N Ireland)

0.12 (-8.9 to 9.2)

0.978

Time period (follow-up: baseline)

-11.3 (-20.6 to -2.0)

0.017

Live with smoker (yes: no)

9.2 (3.5 to 14.9)

0.002

Hours worked in past 2 days

0.41 (0.09 to 0.74)

0.011

Age (years)

-0.20 (-0.40 to 0.00)

0.053

Sex (female: male)

5.3 (-1.6 to 12.2)

0.134

Interaction between region and time period

-13.6 (-23.7 to -3.5)

0.008

Constant

35.1 (24.1 to 46.1)

<0.001

Respiratory symptoms (n=158)

Region (Republic: N Ireland)

1.96 (1.11 to 3.48)

0.021

Time period (follow-up: baseline)

1.22 (0.72 to 2.08)

0.447

Age (years)

1.00 (0.99 to 1.01)

0.487

Sex (female: male)

0.44 (0.28 to 0.69)

<0.001

Interaction between region and time period

0.60 (0.35 to 1.04)

0.070

Sensory symptoms (n=158)

Region (Republic: N Ireland)

1.14 (0.77 to 1.70)

0.507

Time period (follow-up: baseline)

0.57 (0 .47 to 0.71)

<0.001

Age (years)

0.99 (0.98 to 1.00)

0.063

Sex (female: male)

0.86 (0.60 to 1.22)

0.398

Hours worked in past week

0.99 (0.98 to 1.00)

0.089