Table 1

Job demand survey

1. Physical Demand: Select the degree of physical activity that best describes the job based on the following definitions
Physical Demand LevelHow much force must be exerted to lift, carry, push, pull or otherwise move objects, and how frequently is that exertion of force required by the job?
Occasional (0–33% of the workday)Frequent (34–66% of the workday)Constant (67–100% of the workday)
Sedentary10 lbsNegligibleNegligible
Jobs are sedentary if walking and standing are required only occasionally and all other sedentary criteria are met
Light20 lbs10 lbs and/or walk and/or stand with operation of controlsNegligible and/or operate controls while seated
If negligible force exertion is required, a job should be rated Light if it requires: (1) walking or standing to a significant degree; (2) sitting most of the time but entails pushing and/or pulling of arm or leg controls and/or (3) working at a production rate pace entailing the constant pushing and/or pulling of materials
Medium20–50 lbs10–25 lbs10 lbs
Physical Demand requirements are in excess of those for Light work
Heavy50–100 lbs25–50 lbs10–20 lbs
Physical Demand requirements are in excess of those for Medium work
Very Heavy> 100 lbs>50 lbs>20 lbs
Physical Demand requirements are in excess of those for Heavy work
Response Categories for Analytic Models:
Sedentary/Light (Referent)
Medium
Heavy/Very Heavy
2. Heat Exposure: Estimate the duration of significant or unacceptable exposure to heat for employees in the job during the season(s) when heat is a concern:
Not at all, Occasionally, About half the time, Almost all the time
Response Categories for Analytic Models:
Never (Referent)
Up to half the time
More than half the time
Psychological Demand: 12-point scale from 1 (often) to 12 (never)
3. How often does the job involve working very fast?
4. How often is it extremely important to do the work without mistakes?
5. How often does the job demand simultaneous or consecutive completion of tasks that are difficult to combine?
Response Categories for Analytic Models:
Summed composite score yielding tertiles of:
Low Demand (Referent)
Moderate Demand
High Demand
Decision latitude/Job control: 12-point scale from 1 (often) to 12 (never)
6. How often does the job permit complete discretion and independence in determining how the work is to be done?
7. How often does the job permit complete discretion and independence in determining when the work is to be done?
Response Categories for Analytic Models:
Summed composite score yielding tertiles of:
Low Control
Moderate Control
High Control (Referent)