A-228 Are Those Who Fail Performance Validity Measures High Utilizers of Healthcare?
Abstract Objective One study reported that suboptimal effort on performance validity tests (PVTs) is associated with higher healthcare utilization within a VA setting, defined as the number of Emergency Department visits and inpatient hospitalizations. The current study sought to expand on this by examining whether PVT failure is associated with higher number of outpatient visits in a military sample with a history of mild traumatic brain injury (mTBI). Method The medical records of 43 participants, 13 of whom failed the PVT Green’s Word Memory Test (WMT), were reviewed for the number of encounters since the mTBI and the reason for the encounter. The two groups (passed vs. failed) did not differ significantly on demographic variables (39 males, mean age 39, 65% Caucasian). Results The overall number of medical encounters was not significant between the two groups after controlling for years since the mTBI (F(1, 40) = 2.67, p = .11); however, once three participants with (>2 years) missing records were excluded (final n = 40), the PVT failure group was seen significantly more often, (F(1, 37) = 8.23, p = .01). The PVT failures had a higher number of encounters with physical therapy (t(38) = −2.79, p = .01) and orthopedics (t(38) = −2.10, p = .04). Conclusions Preliminary results suggest that suboptimal effort is not associated with higher healthcare utilization; however, when participants with more than two years of missing records were excluded, those who failed PVTs were seen more frequently by physical therapy and orthopedic specialties. Limitations for future investigations are highlighted.