Validity test of the IPD-Work consortium approach for creating comparable job strain groups between Job Content Questionnaire and Demand-Control Questionnaire.
(2015) In International Journal of Occupational Medicine and Environmental Health 28(2). p.321-333- Abstract
- Objectives: This study aims to test the validity of the IPD-Work Consortium approach for creating comparable job strain groups between the Job Content Questionnaire (JCQ) and the Demand-Control Questionnaire (DCQ). Material and Methods: A random population sample (N = 682) of all middle-aged Malmo males and females was given a questionnaire with the 14-item JCQ and 11-item DCQ for the job control and job demands. The JCQ job control and job demands scores were calculated in 3 different ways: using the 14-item JCQ standard scale formulas (method 1); dropping 3 job control items and using the 11-item JCQ standard scale formulas with additional scale weights (method 2); and the approach of the IPD Group (method 3), dropping 3 job control... (More)
- Objectives: This study aims to test the validity of the IPD-Work Consortium approach for creating comparable job strain groups between the Job Content Questionnaire (JCQ) and the Demand-Control Questionnaire (DCQ). Material and Methods: A random population sample (N = 682) of all middle-aged Malmo males and females was given a questionnaire with the 14-item JCQ and 11-item DCQ for the job control and job demands. The JCQ job control and job demands scores were calculated in 3 different ways: using the 14-item JCQ standard scale formulas (method 1); dropping 3 job control items and using the 11-item JCQ standard scale formulas with additional scale weights (method 2); and the approach of the IPD Group (method 3), dropping 3 job control items, but using the simple 11-item summation-based scale formulas. The high job strain was defined as a combination of high demands and low control. Results: Between the 2 questionnaires, false negatives for the high job strain were much greater than false positives (37-49% vs. 7-13%). When the method 3 was applied, the sensitivity of the JCQ for the high job strain against the DCQ was lowest (0.51 vs. 0.60-0.63 when the methods 1 and 2 were applied), although the specificity was highest (0.93 vs. 0.87-0.89 when the methods 1 and 2 were applied). The prevalence of the high job strain with the JCQ (the method 3 was applied) was considerably lower (4-7%) than with the JCQ (the methods 1 and 2 were applied) and the DCQ. The number of congruent cases for the high job strain between the 2 questionnaires was smallest when the method 3 was applied. Conclusions: The IPD-Work Consortium approach showed 2 major weaknesses to be used for epidemiological studies on the high job strain and health outcomes as compared to the standard JCQ methods: the greater misclassification of the high job strain and lower prevalence of the high job strain. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/7432817
- author
- Choi, Bongkyoo ; Ko, Sangbaek and Östergren, Per-Olof LU
- organization
- publishing date
- 2015
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Epidemiological studies, Malmo, Sensitivity, Specificity, Scoring, methods, Misclassification
- in
- International Journal of Occupational Medicine and Environmental Health
- volume
- 28
- issue
- 2
- pages
- 321 - 333
- publisher
- De Gruyter
- external identifiers
-
- wos:000353639800010
- scopus:84952011479
- pmid:26182927
- pmid:26182927
- ISSN
- 1896-494X
- DOI
- 10.13075/ijomeh.1896.00355
- language
- English
- LU publication?
- yes
- id
- 7c16d956-4497-42f7-af38-89a66c06f158 (old id 7432817)
- alternative location
- http://www.ncbi.nlm.nih.gov/pubmed/?term=26182927
- date added to LUP
- 2016-04-01 10:10:49
- date last changed
- 2022-01-25 20:36:54
@article{7c16d956-4497-42f7-af38-89a66c06f158,
abstract = {{Objectives: This study aims to test the validity of the IPD-Work Consortium approach for creating comparable job strain groups between the Job Content Questionnaire (JCQ) and the Demand-Control Questionnaire (DCQ). Material and Methods: A random population sample (N = 682) of all middle-aged Malmo males and females was given a questionnaire with the 14-item JCQ and 11-item DCQ for the job control and job demands. The JCQ job control and job demands scores were calculated in 3 different ways: using the 14-item JCQ standard scale formulas (method 1); dropping 3 job control items and using the 11-item JCQ standard scale formulas with additional scale weights (method 2); and the approach of the IPD Group (method 3), dropping 3 job control items, but using the simple 11-item summation-based scale formulas. The high job strain was defined as a combination of high demands and low control. Results: Between the 2 questionnaires, false negatives for the high job strain were much greater than false positives (37-49% vs. 7-13%). When the method 3 was applied, the sensitivity of the JCQ for the high job strain against the DCQ was lowest (0.51 vs. 0.60-0.63 when the methods 1 and 2 were applied), although the specificity was highest (0.93 vs. 0.87-0.89 when the methods 1 and 2 were applied). The prevalence of the high job strain with the JCQ (the method 3 was applied) was considerably lower (4-7%) than with the JCQ (the methods 1 and 2 were applied) and the DCQ. The number of congruent cases for the high job strain between the 2 questionnaires was smallest when the method 3 was applied. Conclusions: The IPD-Work Consortium approach showed 2 major weaknesses to be used for epidemiological studies on the high job strain and health outcomes as compared to the standard JCQ methods: the greater misclassification of the high job strain and lower prevalence of the high job strain.}},
author = {{Choi, Bongkyoo and Ko, Sangbaek and Östergren, Per-Olof}},
issn = {{1896-494X}},
keywords = {{Epidemiological studies; Malmo; Sensitivity; Specificity; Scoring; methods; Misclassification}},
language = {{eng}},
number = {{2}},
pages = {{321--333}},
publisher = {{De Gruyter}},
series = {{International Journal of Occupational Medicine and Environmental Health}},
title = {{Validity test of the IPD-Work consortium approach for creating comparable job strain groups between Job Content Questionnaire and Demand-Control Questionnaire.}},
url = {{https://lup.lub.lu.se/search/files/1628622/8523743}},
doi = {{10.13075/ijomeh.1896.00355}},
volume = {{28}},
year = {{2015}},
}