An expert-based job exposure matrix for large scale epidemiologic studies of primary hip and knee osteoarthritis: The Lower Body JEM

Table 2 Three job groups from The Lower Body Job Exposure Matrix

Job group number	Danish industry number*	ISCO^†	Occupational titles	Exposure estimates (mean of five experts’ ratings) for a working day of eight hours
				Standing/walking (hours/day)	Kneeling/squatting (hours/day)	Whole-body vibration (hours/day)	Total load lifted (kg/day)	Frequency of lifting loads weighing ≥20 kg (times/day)
1	1	1311	General manager, agriculture (except those in nurseries and green houses)	4.8	0.2	1.1	900	9.6
		6111	Farm worker, skilled/potato
		6112	Farmer, fruit
		6121	Farmer, horse breeding; farm worker
		6122	Farmer, poultry/hatching and breeding; breeder, poultry
		6129	Farmer, fur/non-domesticated animals
		6130	Farmer, mixed farming; farm worker, skilled/mixed farming
		9211	Groom, stud; labourer, farm
		no ISCO	Farmer, fur/non-domesticated animals (mink); groom
12	2	8231	Machine-operator, rubber; machine-operator, vulcanising/rubber goods	6.7	0.2	0.0	1150	6.4
48	3	8161	Operator, generator/electric power	4.0	0.2	0.0	380	2.4
		8162	Operator, boiler plant/steam

*Numbers according to the 9-grouping of industries defined by Statistics Denmark: 1 – Agriculture, fishing and quarrying, 2 – Manufacturing, 3 – Electricity, gas and water supply.
^†ISCO codes in accordance with the International Standard Classification of Occupations.

ISSN: 1471-2474