Table 2.
Most Common Jobs Involving Night-Shift Work and Early-Morning Shifts, PROtEuS, Montreal, Quebec, Canada, 2005–2012
| Occupationa | No. of Persons | % of Jobs Involving Exposure |
|---|---|---|
| Occupations involving night-shift work | ||
| Police officers and detectives working for the government | 170 | 50.6 |
| Guards and related security occupations | 135 | 49.6 |
| Physicians and surgeons | 87 | 27.6 |
| Baking, confectionery-making, and related occupations | 81 | 27.2 |
| Fire-fighting occupations | 60 | 88.3 |
| Mail and postal clerks | 53 | 43.4 |
| Musicians | 46 | 43.5 |
| Electronic data-processing equipment operators | 39 | 28.2 |
| Textile-knitting occupations | 29 | 58.6 |
| Bartenders | 26 | 50.0 |
| Molding occupations, rubber, plastic, and related products | 25 | 44.0 |
| Stationary engine and auxiliary equipment operating and maintaining occupations | 23 | 56.5 |
| Occupations in laboring and other elemental work, NEC | 23 | 30.4 |
| Nurses with a nursing diploma, except supervisors | 22 | 31.8 |
| Marine craft fabricating, assembling and repairing occupations | 21 | 33.3 |
| Air transport operations support occupations | 20 | 50.0 |
| Foremen/women, materiel handling and related occupations, NEC | 19 | 31.6 |
| Textile-weaving occupations | 19 | 26.3 |
| Rail transport equipment mechanics and repairmen | 18 | 33.3 |
| Deck crew, ship | 17 | 52.9 |
| Inspecting and testing occupations, equipment repair, NEC | 17 | 35.3 |
| Airline pilots, flight officers, and flight engineers | 16 | 68.8 |
| Electronic equipment fabricating and assembling occupations | 16 | 25.0 |
| Molding, core-making, and metal-casting occupations | 15 | 40.0 |
| Fabricating, assembling, and repairing occupations involving rubber, plastic, and related products, NEC | 15 | 26.7 |
| Supervisors in reception, information, mail, and message distribution occupations | 14 | 42.9 |
| Hotel clerks | 13 | 53.9 |
| Milk processing and related occupations | 12 | 25.0 |
| Distilling, subliming, and carbonizing occupations, chemicals and related materials | 11 | 81.8 |
| Printing and related occupations, NEC | 11 | 27.3 |
| Deck officers | 10 | 80.0 |
| Metal processing and related occupations, NEC | 10 | 60.0 |
| Foremen, metal processing and related occupations | 10 | 40.0 |
| Travel and related attendants, except food and beverage workers | 10 | 40.0 |
| Typists and clerk-typists | 10 | 40.0 |
| Occupations involving early-morning shifts | ||
| Bus drivers | 89 | 28.1 |
| Armed forces | 51 | 27.5 |
| Air transport operations support occupations | 20 | 30.0 |
| General farm workers | 19 | 31.6 |
| Livestock farmers | 18 | 27.8 |
| Deck crew, ship | 17 | 41.2 |
| Airline pilots, flight officers, and flight engineers | 16 | 50.0 |
| Travel and related attendants, except food and beverage workers | 10 | 50.0 |
Abbreviations: NEC, not elsewhere classified; PROtEuS, Prostate Cancer and Environment Study.
a Based on 4-digit codes from the Canadian Classification and Dictionary of Occupations (12). Occupations presented had at least 10 jobs and at least 25% exposure to night-shift work or early-morning shifts.