Table 1.
Incidence of nasopharynx cancer (NPC) and sinonasal cancer (SNC) among workers exposed to wood dust in Canada.
| Exposed workers a | Total NPC b | Occupational NPC c | Total SNC d | Occupational SNC e | |
|---|---|---|---|---|---|
| Total | |||||
| 1,354,263 | 235 | 11 (4.6%) | 245 | 11 (4.4%) | |
| Sex | |||||
| Men | 812,558 (60%) | 165 | 11 (6.4%) | 145 | 10 (7.0%) |
| Women | 541,705 (40%) | 70 | 0 (0.4%) | 100 | 1 (0.5%) |
| Provinces of residence | |||||
| AB | 61,553 (9.1%) | 20 | 1 (4.0%) | 3 | 1 (26.7%) |
| BC | 141,639 (21.0%) | 45 | 3 (6.4%) | 15 | 2 (10.7%) |
| MB | 680,186 (3.5%) | 5 | 0 (6.0%) | 5 | 0 (8.0%) |
| NB | 23,550 (4.1%) | 5 | 0 (0.4%) | 5 | 1 (14.0%) |
| NL | 27,374 (2.4%) | 10 | 0 (0.2%) | 3 | 0 (16.7%) |
| NS | 16,035 (3.5%) | 10 | 1 (9.0%) | 5 | 1 (10.0%) |
| ON | 23,753 (27.7%) | 75 | 2 (3.2%) | 48 | 3 (6.5%) |
| PE | 186,830 (0.5%) | 0 | 0 (0%) | 0 | 0 (0%) |
| QC | 3465 (25.4%) | 35 | 2 (4.9%) | 33 | 3 (9.7%) |
| SK | 171,352 (2.7%) | 0 | 0 (0%) | 5 | 0 (6.0%) |
Note: a total number of the workers exposed to wood dust in 2011, b incidence of nasopharynx cancer, c nasopharynx cancer cases attributed to occupational wood dust exposure, d incidence of sinonasal cancer, e sinonasal cancer cases attributed to occupational wood dust exposure. Canadian provinces are: AB—Alberta; BC—British Columbia; MB—Manitoba; NB—New Brunswick; NL—Newfoundland and Labrador; NS—Nova Scotia; ON—Ontario; PE—Prince Edward Island; QC—Quebec; SK—Saskatchewan. Owing to rounding, columns and rows may not sum to the exact same value.