| 74288-2 | Occupation industry [NTDS] | |
| 74159-5 | Work schedule NIOSH | |
| 63746-2 | Job duration NHANES | |
| 80427-8 | Employer name | |
| 80429-4 | Employer address | |
| 80431-0 | Employer city | |
| 80433-6 | Employer state | |
| 80435-1 | Employer postal code | |
| 80437-7 | Employer country | |
| 21844-6 | Hx of Usual industry | |
| 21843-8 | Hx of Usual occupation | |
| 74162-9 | Usual industry duration | |
| 74163-7 | Occupation duration | |
| 80428-6 | Past employer name | |
| 80430-2 | Past employer addr | |
| 80432-8 | Past employer city | |
| 80434-4 | Past employer state | |
| 80436-9 | Past employer postal code | |
| 80438-5 | Past employer country | |