441 P.3d 210
Or.2019Background
- Claimant fell in her office-building lobby on the way to work, fractured her shoulder, and reported she tripped though could not identify a hazard. Employer (US Bank) denied compensability.
- Employer argued the fall could be idiopathic (personal risk) because of claimant's diabetes, obesity, prior ankle injury, and antihypertensive medication; it submitted a physician opinion (Dr. Bell) based on records.
- Claimant produced testimony and her longtime PCP (Dr. Kelly) saying she had no history of balance problems; both doctors acknowledged those conditions "could" have contributed but offered no definitive causal link.
- ALJ found employer’s idiopathic theories speculative, concluded claimant had eliminated idiopathic causes, but denied the claim on "in the course of" grounds (going-and-coming / lobby under landlord control).
- The Workers’ Compensation Board affirmed on the ground that claimant failed to "persuasively eliminate all idiopathic factors," relying on medical statements that idiopathic causes could not be excluded.
- The Court of Appeals vacated the board for applying the wrong standard; the Oregon Supreme Court affirms the Court of Appeals’ result, vacates the board, and remands, but clarifies the correct legal standard for when a fall is "unexplained."
Issues
| Issue | Plaintiff's Argument | Defendant's Argument | Held |
|---|---|---|---|
| Whether claimant's fall is an "unexplained" neutral risk so as to arise out of employment | Sheldon: Board should find fall unexplained because employer's idiopathic theories are speculative and less likely than a workplace explanation | US Bank: Claimant must "persuasively eliminate all idiopathic factors" — effectively rule out idiopathic causes | Court: A fall is "unexplained" if there is no nonspeculative explanation; claimant need not disprove all theoretical idiopathic causes but must rebut any facially nonspeculative idiopathic explanation so it becomes speculative |
| Standard to "eliminate idiopathic causes" | Sheldon (as urged): claimant need only show idiopathic causes are less than equally likely than work factors | Board/US Bank: claimant must eliminate all possible idiopathic causes (including those only theoretically possible) | Court: Rejects requirement to eliminate all theoretical causes; clarifies test: eliminate facially nonspeculative idiopathic explanations by offering countering evidence making them speculative |
| Which party bears burden to produce evidence of idiopathic cause | Sheldon: claimant bears burden to prove compensability but employer may need to introduce evidence showing a nonspeculative idiopathic explanation | US Bank: employer need not produce evidence; claimant must disprove idiopathic causes alone | Court: Claimant has the ultimate burden, but employer may have to introduce evidence sufficient to show a nonspeculative idiopathic explanation; claimant must then counter it |
| Effect of Livesley precedent on unexplained-fall causation | Sheldon: Livesley allows unexplained falls to be compensable; requires elimination of idiopathic causes but not by disproof of every possibility | US Bank: Legislative burden statute altered Livesley to require more | Court: Confirms Livesley endorses the positional-risk doctrine; clarifies Livesley does not require disproving all theoretical idiopathic causes and remains good law |
Key Cases Cited
- Phil A. Livesley Co. v. Russ, 296 Or. 25 (recognizes unexplained falls as neutral risks and requires elimination of idiopathic causes to claim compensability)
- Panpat v. Owens-Brockway Glass Container, Inc., 334 Or. 342 (neutral risks compensable if employment conditions put claimant in position to be injured)
- Redman Industries, Inc. v. Lang, 326 Or. 32 (unitary work-connection test: both "arising out of" and "in the course of" must be met)
- Robinson v. Nabisco, Inc., 331 Or. 178 (defines "in the course of" element: time, place, circumstances)
- Fred Meyer, Inc. v. Hayes, 325 Or. 592 (going-and-coming rule and parking-lot exception)
- Sheldon v. US Bank, 281 Or. App. 560 (Ct. App. decision vacating the board and articulating a less-than-equally-likely standard; affirmed as to result by the Supreme Court)