The original ALOHA JEM (with just the 4 general exposure categories) was first used and described in the literature in these papers:

  • Matheson MC1, Benke G, Raven J, Sim MR, Kromhout H, Vermeulen R, Johns DP, Walters EH, Abramson MJ.  Biological dust exposure in the workplace is a risk factor for chronic obstructive pulmonary disease. Thorax. 2005 Aug;60(8):645-51.
  • Sunyer J, Zock JP, Kromhout H, Garcia-Esteban R, Radon K, Jarvis D, Toren K, Künzli N, Norbäck D, d’Errico A, Urrutia I, Payo F, Olivieri M, Villani S, Van Sprundel M, Antó JM, Kogevinas M; Occupational Group of the European Community Respiratory Health Survey. Lung function decline, chronic bronchitis, and occupational exposures in young adults. Am J Respir Crit Care Med. 2005 Nov 1;172(9):1139-45. Epub 2005 Jul 22.

The ALOHA+ JEM (with additional pesticides, solvents and metals) was first used and described in these two papers:

  • van der Mark M, Vermeulen R, Nijssen PC, Mulleners WM, Sas AM, van Laar T, Brouwer M, Huss A, Kromhout H. Occupational exposure to pesticides and endotoxin and Parkinson disease in the Netherlands. Occup Environ Med. 2014 Nov;71(11):757-64. doi: 10.1136/oemed-2014-102170. Epub 2014 Aug 7.
  • de Jong K, Boezen HM, Kromhout H, Vermeulen R, Postma DS, Vonk JM. Association of occupational pesticide exposure with accelerated longitudinal decline in lung function. Am J Epidemiol. 2014 Jun 1;179(11):1323-30.

Contact information: Vivi Schlünssen,, Department of Public Health, Danish Ramazzini Centre, Aarhus University, Aarhus, Denmark

Access: To obtain access to data you need to contact the above-mentioned contact person. You will find an overview of the access posibilies to the JEM  here  Hent dokument.




bioldust                biological dust

minedust             mineral dust

gasfumes            gases &  fumes

vgdf                       vapours, gases, dust and fumes


all                            all pesticides

herbi                     herbicides

insec                      insecticides

fungi                      fungicides


aromatic              aromatic solvents

chlorinated         chlorinated solves

other                     other types of solvents


metals                  metals

In order to link this JEM to DOX*X data you will need to have the job histories coded in ISCO88 (

The JEM uses a four digit code. As long as the coding has been done at the 4-digit unit group level there is no issue. However when you have codes present at the Minor (3-digits) or Sub-Major (2 digits) or Major (1 digit) level you will have to add zeros after the digits. So a job that cannot be coded more precisely than Major Group  “4 Clerks” should be coded as 4000. Similarly “41 Office clerks”, should be coded as 4100 and “411 Secretaries and keyboard-operating clerks” as 4110. However preferably you want to do the coding at the 4-digit level e.g. in this case “4115 Secretaries.

Please note that there are 6 exceptions with 2-digit codes:

94           Not classifiable

95           Housewife

96           Unemployed

97           Not working because for health reasons

98           Student

99           Retired

These are not assigned an exposure.

ALOHA+ has the following exposures:

Coverage: The JEM covers the entire ISCO-88 classification system.

Job title and industry classification system: The JEM uses the ISCO-88 classification system.

Calendar period: No information

Measures of exposure: It assigns o (=non-exposed) or 1 (=medium-exposed) or  2 (=high-exposed) to each job.

Analyses can be consequently done with “ever high” and “only low” given one’s history or a cumulative exposure estimates can be construed by multiplying the number of years in a job with the weighted score for medium (=1) or for high (=4) and consequently summing over the entire (or part e.g. lags or windows) of someone’s job history.

Demographic dimensions: No demographic dimensions are included.

Uncertainty in exposure measures: The exposures were expert assessed.