Table 2

HRs and 95% CIs for dermatitis by selected industry groups

Industry (major, minor)*Cases (workers)HR (95% CI)†
(01) Experimental and institutional farms224 (7959) 0.78 (0.69 to 0.89)
 (011) Livestock and livestock combination farms34 (1318)0.72 (0.51 to 1.00)
 (013) Field crop and field crop combination farms16 (714)0.67 (0.41 to 1.08)
(04) Forestry28 (1302) 0.64 (0.44 to 0.92)
 (031) Logging26 (1172) 0.66 (0.45 to 0.96)
(09) Metal mines37 (1357)0.81 (0.59 to 1.12)
(10) Non-metal mines6 (143)1.28 (0.58 to 2.85)
(13) Services incidental to mining16 (729)0.67 (0.41 to 1.09)
(14) Food and beverage industries612 (14 586) 1.12 (1.03 to 1.21)
(103) Fruit and vegetable processing63 (1278) 1.31 (1.02 to 1.67)
 (107) Bakery products124 (2343) 1.35 (1.14 to 1.62)
 (109) Beverage72 (1790)1.14 (0.90 to 1.44)
(16) Rubber and plastics products industries334 (7755) 1.15 (1.03 to 1.28)
 (165) Plastics fabricating290 (6510) 1.18 (1.05 to 1.32)
(22) Furniture and fixture industries202 (4719) 1.21 (1.06 to 1.39)
 (264) Office furniture manufacturers70 (1490) 1.34 (1.06 to 1.69)
(26) Metal fabricating industries851 (22 430) 1.10 (1.03 to 1.18)
 (302) Fabricated structural metal58 (1563)1.13 (0.87 to 1.46)
 (305) Wire and wire products manufacturers63 (1479)1.17 (0.92 to 1.50)
 (306) Hardware, tool and cutlery manufacturers163 (3830) 1.22 (1.05 to 1.43)
 (308) Machine shops125 (3343)1.12 (0.94 to 1.34)
(28) Transportation equipment industries776 (19 138) 1.11 (1.03 to 1.19)
(321) Aircraft and aircraft parts manufacturers39 (855)1.32 (0.96 to 1.81)
 (325) Motor vehicle parts and accessories manufacturers492 (11 417) 1.14 (1.05 to 1.25)
 (326) Railroad rolling stock industry10 (262)1.13 (0.61 to 2.11)
(31) Petroleum and coal products industries8 (189)1.24 (0.62 to 2.49)
(34) General contractors470 (17 440) 0.80 (0.73 to 0.88)
 (404) Building construction247 (9621) 0.76 (0.67 to 0.86)
 (406) Highway, bridge and street construction104 (3562)0.89 (0.73 to 1.08)
(50) Personal services92 (2838) 0.78 (0.64 to 0.96)
 (872) Barber and beauty shops7 (72) 2.18 (1.04 to 4.55)
 (873) Private households46 (1204)0.86 (0.65 to 1.15)
(874) Laundries, cleaners and pressers (except self-service)32 (1281) 0.63 (0.45 to 0.89)
  • Statistically significant (α=0.05) increased risks are bolded and statistically significant decreased risks are italicised.

  • *(Canadian Standard Industry Classification-80) Industry Major Group; (Canadian Standard Industry Classification-80) Industry Minor Group.

  • †The risk of contact dermatitis in a particular group relative to all other workers in the cohort, adjusted for birth year and sex.