Injury Data

The following tables and charts are generated by L&I Research and Data Services staff. They show the numbers and costs of injuries for claims with various characteristics such as injury type, occupation, firm risk class and experience factor.

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L&I and Self-Insured Workers' Compensation Claims

2007-2018 — Claims filed:

• Year, Status, and Liability (117 KB XLS)
• Year and Liability (Accepted status only) (36 KB XLS)

L&I Workers' Compensation Claims

Accepted status only. Excludes claims filed with self-insured employers.

2007-2018 - Claims accepted: Number of claims and incurred costs by:

• Accident Type (388 KB XLS)
• Body Part Injured (95 KB XLS)
• Injury Nature (322 KB XLS)
• Injury Source (265 KB XLS)
• Occupation (975 KB XLS / 1 min)
• Occupation and Accident Type (7,438 KB XLS / 5 min)
• Occupation and Injury Nature (6,086 KB XLS / 5 min)
• Occupation and Injury Source (9,770 KB XLS / 9 min)
• Most frequent injuries (557 KB XLS)
• Risk Class (495 KB XLS / 1 min)

Experience factors, number of firms and claim frequencies

By North American Industrial Classification System (NAICS) Code

• By North American Industrial Classification System (NAICS) Code (212 KB XLSX)

By Standard Industrial Classification (SIC) Code

• By Standard Industrial Classification (SIC) Code (1.83 MB XLS)

• 2007 Changes to the Experience Rating

Go to our Experience Factor Q/A (35 KB Doc) document, to see questions and answers about these reports.

Caution: There are many differences between the data in these tables and data in the Bureau of Labor Statistics Information (BLSI) survey. Do not attempt to combine or compare this data.

Research reports

• Employer Assisted Injury Reporting ( 824 KB PDF / 2.5 min) - A Report to the Legislature.
• Survey of Injured Workers: Claim Suppression and Direction of Care, June 2007 (532 KB PDF / 1.5 min).
• Employer Reporting Project Survey of Reasons for Delayed Reporting of Claims, Fall 2006 (51 KB PDF).
• The Aging Workforce in Washington State: Impacts and Implications for Workers' Compensation, Second Edition, November 2007 (171 KB PDF).
• Literature review, aging workforce, December 2005 (91 KB PDF).
• Return-to-work study report (425 KB PDF / 1 min) - A report on the return-to-work success measures for 1997 to 1998.
• Return-to-work study report (218 KB PDF) - A report on the return-to-work success measures for 1998 to 2000.