%0 Journal Article %T Influence of errors in job codes on job exposure matrix-based exposure assessment in the register-based occupational cohort DOC*X %A Petersen, Sesilje Bondo %A Flachs, Esben M. %A Svendsen, Susanne Wulff %A Marott, Jacob L. %A Budtz-Jørgensen, Esben %A Hansen, Johnni %A Stokholm, Zara A. %A Schlünssen, Vivi %A Andersen, Johan Hviid %A Bonde, Jens Peter %J Scandinavian Journal of Work, Environment & Health %D 2020 %8 May 46 %N 3 %@ 0355-3140 %F Petersen2020 %X '

'

OBJECTIVE ': 'Job-exposure matrices (JEM) may be efficient for exposure assessment in occupational epidemiological studies, but they rely on valid job information. We evaluated the agreement between JEM-based exposure estimates according to self-reported job titles converted to DISCO-88 codes and according to register-based DISCO-88 codes in the Danish Occupational Cohort with eXposure data (DOC*X). Furthermore, we evaluated the agreement between these two sets of DISCO-88 codes.

'

'

METHODS ': 'We used JEM regarding wood dust, lifting, standing/walking, arm elevation >90°, and noise from DOC*X. Participants from previous questionnaire studies were assigned JEM-based exposure estimates using (i) self-reported job titles converted to DISCO-88 codes and (ii) DISCO-88 codes registered in DOC*X, in four time periods (1976–78: N=7707; 1981–83: N=2193; 1991–94: N=2664; 2004: N=11 782). Agreement between the exposure estimates and between the DISCO-88 codes (four-digit levels, 1–4) was evaluated by kappa (κ) statistics. Sensitivities were calculated using the self-reported observation as the gold standard.

'

'

RESULTS ': 'We found substantial agreement (κ>0.60) between exposure estimates for all types of job-exposures and all time periods except for one κ. Low sensitivity (30–65%) was found for the period 1981–83, but for the other time periods the sensitivities varied between 60–91%. For individual 4-digit DISCO-88 codes, the sensitivities varied substantially and overall the sensitivities increased by lower digit level of DISCO-88.

'

'

CONCLUSION ': 'The validity of the DISCO-88 codes in DOC*X was generally high. Substantial agreement was found for the JEM-based exposure estimates and the DISCO-88 codes per se, although the DISCO-88 code-specific agreement varied across digit levels and time periods.

%K arm elevation %K DOC*X %K epidemiology %K exposure %K ISCO-88 %K JEM %K job code %K job code error %K job exposure matrix %K lifting %K metal dust %K noise %K occupation %K occupational cohort %K shoulder %K standing %K validity %K walking %K wood dust %R 10.5271/sjweh.3857 %U https://www.sjweh.fi/show_abstract.php?abstract_id=3857 %U https://doi.org/10.5271/sjweh.3857 %P 259-267