Table 3

IRR for respiratory infection consultations (men only) by occupational group and season of consultation, 2000–2011

OverallWinterSummer
Occupation groupsAdjusted IRR*p ValueAdjusted IRR†p ValueAdjusted IRR†p Value
Manual labourers111
Welders (all)1.45 (1.40; 1.50)<0.0011.47 (1.42; 1.52)<0.0011.33 (1.23; 1.44)<0.001
 High1.48 (1.47; 1.61)<0.0011.58 (1.50; 1.67)<0.0011.32 (1.19; 1.47)<0.001
 Medium1.48 (1.42; 1.55)<0.0011.49 (1.43; 1.57)<0.0011.40 (1.27; 1.55)<0.001
 Low1.22 (1.15; 1.29)<0.0011.22 (1.15; 1.30)<0.0011.24 (1.09; 1.40)<0.001
Blast/paint workers1.45 (1.38; 1.53)<0.0011.46 (1.37; 1.54)<0.0011.46 (1.29; 1.64)<0.001
Firemen1.01 (0.91; 1.12)0.8080.96 (0.85; 1.08)0.5871.24 (1.02; 1.51)0.034
Office workers0.80 (0.75; 0.85)<0.0010.79 (0.73; 0.85)<0.0010.82 (0.71; 0.95)0.008
  • Bold highlights statistical significance. Adjusted for age, country of origin and years of dockyard employment.

  • *Adjusted for: age, nationality, season and varying tenure.

  • †Adjusted for: age, nationality and varying tenure.

  • IRR, incidence rate ratio.