Medical students' abilities to take an occupational history: use of the WHACS mnemonic.

This study examined medical students' use of the WHACS mnemonic during an occupational history objective structured clinical examination station. Students' performance on the 10 content-specific station items was calculated. Factor analysis of the items was conducted, and student demographic and academic characteristics associated with performance on the station were examined. A total of 205 students completed the station. The mean number of correct responses was 5 (SD, 1.6). Students performed well on some items and less well on others. Factor analysis supported the WHACS framework. There were no significant associations with student demographic or academic characteristics. Students were aware of the particular features of an occupational history but were deficient in other areas; this awareness was not related to demographic or academic characteristics. The WHACS mnemonic could be an effective tool to teach occupational history-taking skills.