Factors Influencing the Clinical Stratification of Suitability to Drive after Stroke: A Qualitative Study

Linking people and activities through community mobility: an international comparison of the mobility patterns of older drivers and non-drivers

Community mobility using private and public transportation is important for maintaining health, social participation and living well in later life. This international cross-sectional cohort study (N = 246) reported on the health and driving status of older adults from seven countries where the mobility patterns of drivers and non-drivers were compared in terms of city and rural areas, weather, as well as their respective differences in the number of out-of-home places accessed and quality of life. Older adults participated in a semi-structured interview and completed four standardised instruments: the EQ-5D-5L, modified PULSES health profile, modified Transportation Questionnaire, and the Transport – Participation in Activities and Places Outside the Home. Results suggested inclement weather and place of residence negatively impacted out-of-home activities but did not increase use of public transportation. Drivers accessed more out-of-home activities than non-drivers, suggesting higher community participation among this group, and quality of life was generally high among all participants, but slightly higher for drivers. Findings indicate that a complex myriad of factors can influence community mobility in older adults and further investigations are needed to understand patterns of transport in later life, particularly with regard to those factors that promote and maintain transport mobility, and relationships between transport mobility, community participation and quality of life.

Using Serial Trichotomization with Neuropsychological Measures to Inform Clinical Decisions on Fitness-to-Drive among Older Adults with Cognitive Impairment

Decisions related to driving safety and when to cease driving are complex and costly. There is an interest in developing an off-road driving test utilizing neuropsychological tests that could help assess fitness-to-drive. Serial trichotomization has demonstrated potential as it yields 100% sensitivity and specificity in retrospective test samples. The purpose of this study was to test serial trichotomization using four common neuropsychological tests (Trail Making Test Part A and B, Clock Drawing Test, and Modified Mini-Mental State Examination). Test scores from 105 patients who were seen in a memory clinic were abstracted. After applying the model, participants were classified as unfit, fit, or requiring further testing, 38.1%, 25.8%, and 36.1%, respectively. This study provides further evidence that trichotomization can facilitate the assessment of fitness-to-drive.

Assessing fitness to drive after stroke

Purpose

The assessment of fitness to drive after stroke is an emerging area of occupational therapy practice in Ireland. Despite this, little is known about occupational therapists’ evaluation practices, and there are no internationally agreed clinical guidelines to inform best practice. The purpose of this paper is to investigate occupational therapy evaluation practices for fitness to drive after stroke in Ireland.

Design/methodology/approach

This is a cross-sectional study design targeting occupational therapists working with people after stroke using an online survey. Summary and descriptive statistics were used to analyse the returned surveys.

Findings

In total, 47 occupational therapists participated. Off-road driving assessment was completed by 68 per cent of respondents. Functional assessment and non-driving-specific assessments were most widely used and perceived to be the most useful in informing the off-road assessment. A total of 89 per cent referred clients for on-road assessments; however, some referred without first completing an off-road assessment. The therapists who completed formal post graduate education/training in driving assessment reported greater confidence and competence in their skills and ability to assess fitness to drive. A vast majority of participants agreed that clinical guidelines regarding best practice in this area would be beneficial.

Research limitations/implications

A majority of occupational therapists are assessing fitness to drive after stroke in Ireland with non-driving-specific assessments and functional observations; however, there are many gaps and wide variations between services. Education/training in evaluating fitness to drive after stroke is recommended. The development of clinical guidelines to inform practice would facilitate a consistent approach nationally.

Originality/value

This is the first study completed in Ireland to investigate occupational therapy evaluation practices for fitness to drive after stroke.

Predicting fitness-to-drive following stroke using the Occupational Therapy - Driver Off Road Assessment Battery

Introduction: It is difficult to determine if, or when, individuals with stroke are ready to undergo on-road fitness-to-drive assessment. The Occupational Therapy - Driver Off Road Assessment Battery was developed to determine client suitability to resume driving. The predictive validity of the Battery needs to be verified for people with stroke. Aim: Examine the predictive validity of the Occupational Therapy - Driver Off Road Assessment Battery for on-road performance among people with stroke. Method: Off-road data were collected from 148 people post stroke on the Battery and the outcome of their on-road assessment was recorded as: fit-to-drive or not fit-to-drive. Results: The majority of participants (76%) were able to resume driving. A classification and regression tree (CART) analysis using four subtests (three cognitive and one physical) from the Battery demonstrated an area under the curve (AUC) of 0.8311. Using a threshold of 0.5, the model correctly predicted 98/112 fit-to-drive (87.5%) and 26/36 people not fit-to-drive (72.2%). Conclusion: The three cognitive subtests from the Occupational Therapy - Driver Off Road Assessment Battery and potentially one of the physical tests have good predictive validity for client fitness-to-drive. These tests can be used to screen client suitability for proceeding to an on-road test following stroke. Implications for Rehabilitation: Following stroke, drivers should be counseled (including consideration of local legislation) concerning return to driving. The Occupational Therapy - Driver Off Road Assessment Battery can be used in the clinic to screen people for suitability to undertake on road assessment. Scores on four of the Occupational Therapy - Driver Off Road Assessment Battery subtests are predictive of resumption of driving following stroke.