The Survey of Occupational Injuries and Illnesses (SOII) is a cooperative Federal – State program in which employer reports are collected from approximately 164,000 private industry establishments. The survey samples private industry establishments. Annually the BLS sends them SOII Form BLS-9300 N06, on which they report information from their OSHA injury/illness logs. This information is processed by state agencies cooperating with the BLS. The survey measures nonfatal injuries and illnesses only and excludes the self-employed, farms with fewer than 11 employees, private households, and employees in Federal, State, and local government agencies.
The rate per 10,000 full-time workers is computed by (1) dividing the number of occupational injuries reported by the total number of hours worked by all employees during the calendar year, and (2) multiplying the result by 20,000,000. The factor 20,000,000 represents the hours worked in a year by 10,000 FTE workers (working 40 hours per week, 50 weeks a year).
Nonfatal occupational injuries are defined as work-related injuries involving loss of consciousness, restriction of work or motion, transfer to another job, or medical treatment other than first aid. For this objective nonfatal occupational injuries include those to workers regardless of age that involve days away from work as well as those without lost workdays. An occupational eye injury is any injury or illness affecting the eye (including the conjunctiva, cornea, eyeball, inside and outside of the eyelids, iris, lachrymal glands, lens, optic nerve, orbit, retina, and upper and lower eyelashes). The eye injury or illness must result from an event in the work environment (that is, be an OSHA reportable case) and result in one or more days of lost work. Medical treatment includes managing and caring for a patient for the purpose of combating disease or disorder. Calendar days of restricted work activity or days away from work are counted up to 180 days, but not the day the injury occurred.