Over a 12 month span from June 2023 to May 2024, researchers at Oregon Health and Science University in Portland screened 405 family caregivers accompanying patients to a movement disorders clinic, using the Zarit Caregiver Burden Interview, a 22-item questionnaire that scores burden from 0 to 88. The study, a pre-post quality improvement project rather than a randomized trial, is described in an abstract published in Innovation in Aging, the journal of the Gerontological Society of America, and indexed in PubMed Central. Caregivers who scored above 30 were referred to a clinic social worker for a structured needs assessment and resource referrals; 106 caregivers, or 30.1 percent, crossed that threshold.
Of those 106, social work staff reached 74 (69.8 percent) and 47 (44.3 percent) completed an actual visit with a social worker. The two problems caregivers raised most often were mental health concerns, cited by 25 people (29.8 percent), and financial concerns, cited by 25.5 percent. The researchers tried to re-score caregivers roughly two months after the social work referral to see whether burden had eased, but the project's authors report that only 14 caregivers, 3.5 percent of the original 405, completed that follow-up assessment. Of those 14, 6 (42.9 percent) reported an improvement in their Zarit score.
The authors themselves flag the follow-up rate as the study's central weakness, writing that the low return "highlights the challenges of measuring post-intervention scores in a real-life clinic setting." They frame the finding as one of feasibility, not efficacy: caregivers were willing to sit down with a social worker and talk through a plan, but the clinic could not reliably confirm afterward whether that conversation changed how burdened those caregivers felt. The team calls for future projects to track follow-up and community-resource engagement more systematically.
The result adds a movement disorder-specific data point to a caregiver burden literature that has largely been built around Alzheimer's and other dementias, a gap noted in a 2022 editorial on caregiver burden in movement disorders. Family caregivers of people with Parkinson's disease and related movement disorders face their own mix of motor, cognitive and financial strain, and clinic-based screening tools built for dementia caregiving do not automatically capture that.