Development and Validation of a Self-Administered Occupational Health History Questionnaire

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Abstract
Although the diagnosis of work-related illness relies heavily on the occupational history, there is no validated or widely used questionnaire available to obtain this information. An occupational health history questionnaire (OHHQ) was designed to assess its ability to discriminate among workers with different degrees of hazardous exposure. A self-administered OHHQ was completed by 100 consecutive patients known to have a high probability of work-related disease (group 1) and by 55 consecutive workers at low risk for occupational toxic exposures (group 2). Group 1 had a significantly higher number of self-assessed overall exposures (SAE) (P < 0.001). Within group 1, scores of SAES were highly correlated with an assessment by an industrial hygienist of the degree of hazardous exposure (P < 0.001). The OHHQ can be feasibly self-administered; it has discriminant validity (correctly identifying groups of workers with high and low hazardous exposures) and convergent validity (correlating with an independent assessment of hazardous exposures).

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