Work Limitations Questionnaire (WLQ)

WLQ is a questionnaire that asks about the influence of health issues on work, and evaluates presenteeism. The short form and the validated Japanese version was used.^26,27 WLQ consists of the following components: physical demands, which covers the ability to perform tasks involving body strength, movement, endurance, coordination, and flexibility; time management, which addresses difficulty handling the time and scheduling demands of a job; mental-interpersonal demands, which addresses cognitively demanding tasks and on-the-job social interactions; and output demands, which addresses reduced work quantity, quality, and timeliness. From the WLQ, the percentage of productivity loss owing to presenteeism can be calculated.