Question	Content
KQ4	Which of the following occupation categories best describes your work (occupation)?
Q18	How many hours do you work per week at your regular workplace?
Q20	How many days a week do you work at your regular workplace?
Q23	How much are you exposed to the followings while working? A. Vibration generated by hand tools and machines B. Severe noise that makes you raise your voice in order to talk to someone C. High temperature that makes you sweat even when not working D. Low temperature, whether indoors or outdoors E. Inhalation of smoke, fumes (welding or exhaust), powder, dust (e.g., wood dust, mineral dust) F. Inhalation of steam generated by organic agents, such as thinners G. Dealing with chemical products/substances or coming into contact with them H. Secondhand cigarette smoke I. Dealing with or directly coming into contact with substances that cause infection, such as waste, body fluids, and experimental substances
Q24	Are any of the following included in your work? A. Posture that causes fatigue or pain B. Lift or move a human C. Pull, push, or move a heavy object D. Consistently standing up E. Repetitive hand or arm motions F. Directly dealing with people other than colleagues, such as clients, passengers, students, and patients G. Dealing with angry clients or patients H. Working with a computer, such as PC, network, or large-scale computer I. Using the internet/email for work
Q30	How well are you informed of “health and safety risk factors” related to work?
Q32	How many days a month do you work night shifts (night shift: at least 2 h of work from 10 PM to 5 AM)?
Q33	How many days a month do you work evening shifts (evening shift: at least 2 h or work from 6 PM to 10 PM)?
Q34	How many Sundays do you generally work each month?
Q35	How many Saturdays do you generally work each month?
Q36	How many days a month do you generally work more than 10 h a day?
Q44	Are there repetitive tasks shorter than the following interval in your work? Let the participant know that this does not refer to clicking the mouse when necessary. It refers to small repetitive tasks in a production line, such as repeatedly processing parts made by a machine. A. 1 min B. 10 min
Q45	How often is the following type of situation included in your work? Show the [Options] and let the participant choose only one for each category. Rotation: Change the order of A and B for each participant A. Work at a very fast pace B. Work under a strict deadline
Q66	Do you believe that your work has health or safety risks?
Q67	Does your work affect your health?
Q68	How is your general health state?
Q69	Have you had any of the following health problems in the past 12 months? A. Hearing problem B. Skin problem C. Low back pain D. Muscle pain in the shoulder, neck, arm, etc. E. Muscle pain in the lower limbs, such as hip, legs, knee, and foot F. Headache, eye fatigue G. Stomach pain H. Breathing difficulty I. Cardiovascular disease J. Injury (By accident) K. Depression or anxiety disorder L. General fatigue M. Insomnia or sleep disorder N. Other
Q72	How many days have you been absent from work due to a health problem in the past 12 months?
Q74	Have you ever come to work even when you were sick in the past 12 months?