Perceived confidence relates to driving habits post-stroke

Abstract

Purpose: Returning to driving post-stroke is a step towards independence. On return to driving following stroke, confidence is related to performance in on-road assessment and self-regulation of driving behaviours occurs. The aim of this study was to examine the relationship between driver’s confidence and driving habits post-stroke. Method: Structured telephone surveys were completed with 40 stroke survivors (62% men), of mean age 65 years SD 12.17 who returned to driving post-stroke within the previous 3 years. The survey included: (1) socio-demographics, (2) Adelaide Driving Self Efficacy Scale (ADSES) and (3) Driving Habits Questionnaire (DHQ). Results: Male stroke survivors were more likely to return to driving, drive further and more often. Stroke survivors under 65 years were likely to drive further. Driving confidence was significantly associated with kilometres driven (p?=?0.006), distance driven (p?=?0.027) and self-limiting driving (p?=?0.00). Conclusion: Findings indicate a relationship between confidence and driving behaviours post-stroke. Early recognition of driving confidence will help professionals target specific strategies, encouraging stroke survivors to return to full driving potential, access activities and positively influence quality of life.

• Implications for Rehabilitation

• Findings indicate a relationship between confidence and driving behaviours post-stroke.

• Early recognition of driving confidence will help professionals target specific strategies, encouraging stroke survivors to return to full driving potential, access activities and positively influence quality of life.

     

Visual testing for readiness to drive after stroke: a multicenter study

OBJECTIVE: The purpose of this study was to determine the ability of a visual-perception assessment tool, the Motor-Free Visual Perception Test, to predict on-road driving outcome in subjects with stroke. DESIGN: This was a retrospective study of 269 individuals with stroke who completed visual-perception testing and an on-road driving evaluation. Driving evaluators from six evaluation sites in Canada and the United States participated. Visual-perception was assessed using the Motor-Free Visual Perception Test. Scores range from 0 to 36, with a higher score indicating better visual perception. A structured on-road driving evaluation was performed to determine fitness to drive. Based on driving behaviors, a pass or fail outcome was determined by the examiner. RESULTS: The results indicated that, using a score on the Motor-Free Visual Perception Test of < or =30 to indicate poor visual-perception and >30 to indicate good visual perception, the positive predictive value of the Motor-Free Visual Perception Test in identifying those who would fail the on-road test was 60.9% (n = 67/110). The corresponding negative predictive value was 64.2% (n = 102/159). Univariate logistic regression analyses revealed that older age, low Motor-Free Visual Perception Test scores and a right hemisphere lesion contributed significantly to identifying those who failed the on-road test. CONCLUSIONS: The predictive validity of the Motor-Free Visual Perception Test is not sufficiently high to warrant its use as the sole screening tool in identifying those who are unfit to undergo an on-road evaluation.     

Monitoring the functional health status of stroke patients: the value of the Stroke-Adapted Sickness Impact Profile-30

PURPOSE: To further validate the Stroke-Adapted Sickness Impact Profile-30 (SA-SIP30) and to determine its responsiveness in a stroke rehabilitation population. METHOD: Data of 122 communicative stroke patients (mean age 57 years), selected for an inpatient rehabilitation programme, were available. All had suffered different types of stroke. Six months and one year post-stroke, the patients completed the SIP68 plus nine stroke-specific questions from the SIP136, enabling us to derive the SA-SIP30 from the questionnaire. We determined internal consistency, construct and clinical validity and responsiveness of the SA-SIP30. Total, physical and psychosocial dimension scores were calculated. RESULTS: Internal consistency was moderate to good (alpha>0.68) and correlation between the SIP68 and the SA-SIP30 was high (r>0.85), indicating good construct validity for total score and both dimension scores. Clinical validity assessment showed that total and psychosocial dimensions scores were significantly higher for patients with a cortical infarction compared to respectively subarachnoid haemorrhage and subcortical infarction (p<0.05). Effect sizes for the SA-SIP30 were moderate (between 0.56 and 0.65). CONCLUSIONS: The SA-SIP30 proved valid and responsive in our stroke rehabilitation population. The major advantages of the SA-SIP30 are the lesser number of items and, therefore, the shorter completion time and the fact that it is a stroke-specific scale to determine health-related functional status.     

Development and validation of the Chinese version of the Diabetes Management Self-efficacy Scale

OBJECTIVE: The purpose of this study was to translate the Diabetes Management Self-Efficacy Scale (DMSES) into Chinese and test the validity and reliability of the instrument within a Taiwanese population. RESEARCH DESIGN AND METHODS: A two-stage design was used for this study. Stage I consisted of a multi-stepped process of forward and backward translation, using focus groups and consensus meetings to translate the 20-item Australia/English version DMSES to Chinese and test content validity. Stage II established the psychometric properties of the Chinese version DMSES (C-DMSES) by examining the criterion, convergent and construct validity, internal consistency and stability testing. The sample for Stage II comprised 230 patients with type 2 diabetes aged 30 years or more from a diabetes outpatient clinic in Taiwan. RESULTS: Three items were modified to better reflect Chinese practice. The C-DMSES obtained a total average CVI score of .86.The convergent validity of the C-DMSES correlated well with the validated measure of the General Self-Efficacy Scale in measuring self-efficacy (r=.55; p<.01). Criterion-related validity showed that the C-DMSES was a significant predictor of the Summary of Diabetes Self-Care Activities scores (Beta=.58; t=10.75, p<.01). Factor analysis supported the C-DMSES being composed of four subscales. Good internal consistency (Cronbach's alpha=.77 to .93) and test-retest reliability (Pearson correlation coefficient r=.86, p<.01) were found. CONCLUSIONS: The C-DMSES is a brief and psychometrically sound measure for evaluation of self-efficacy towards management of diabetes by persons with type 2 diabetes in Chinese populations.     

Driving skills in elderly persons with stroke: comparison of two new assessment options

OBJECTIVE: To compare the effectiveness of two methods of assessing off-road driving skills that claim to predict on-road driving fitness of persons with stroke. METHOD: Fifty-six persons with stroke (age 44 to 82 yrs; mean, 60.2 yrs) completed the 2 off-road driving assessments along with standard clinical and on-road driving tests. MAIN OUTCOME MEASURES: Linear stepwise regression on 4 variables of the Dynavision Performance Assessment Battery (DPAB), the Cognitive Behavioral Driver's Inventory (CBDI) variable (composite score), and the variables of age, gender, and lesion side. RESULTS: A 4-minute endurance subtest from the DPAB was superior to the CBDI in predicting success/failure in the on-road driving test (75%). However, success on both the 4-minute endurance subtest from the DPAB and the CBDI tests significantly improved the prediction of on-road success. If participants passed the CBDI and the endurance test from the DPAB, they also passed the on-road assessment. CONCLUSION: Driving fitness of elderly persons with stroke can be assessed with reasonable accuracy using off-road tests, minimizing the expense and risk associated with on-road assessments in this population.     

Driving evaluation practices of clinicians working in the United States and Canada.

OBJECTIVE: To determine off-road and on-road driving evaluation practices of clinicians in the United States and Canada who assess individuals with disabilities for fitness to drive. PARTICIPANTS: Participants were 114 clinician attendees at the 2003 annual Association of Driver Educators for the Disabled with driving assessment experience ranging from 1 month to 25 years. MEASURES: Information was elicited regarding the clinician, clientele, referral practices, and off-road and on-road driving evaluation practices and retraining practices using a self-administered questionnaire. RESULTS: Participants were largely occupational therapists (68%) who worked in 42 different states and provinces. The most prevalent clientele were persons with traumatic brain injury (97%) and stroke (96%). Testing times greater than 60 min were common for both the off-road (61%) and on-road (49%) evaluations. Commonly performed off-road assessments included the Brake Reaction Timer; Trail Making Test, Parts A and B; and the Motor Free Visual Perception Test, used by 73%, 72%, and 66%, respectively; comprehensive computer-based driving evaluation was rare. Sixty-one percent indicated that all clients underwent on-road evaluation regardless of the off-road results. Finally, 78% used a standard driving route, whereas 24% used a scoring system to evaluate on-road driving. CONCLUSION: Driving assessment in Canada and the United States is multidimensional and time-intensive. Although the domains being assessed are similar across clincians, specific off-road and on-road assessment practices vary greatly. The majority use nonstandardized on-road assessments.     

Nursing self-efficacy for oral anticoagulant therapy management: Development and initial validation of a theory-grounded scale

AimThis study aimed to develop and validate a nursing self-efficacy scale for OAC management (SE-OAM).BackgroundOral anticoagulant therapy (OAC) requires specific nursing competencies. Given that self-efficacy acts as a proxy assessment of nursing competence, its measurement is pivotal for addressing educational programs to enhance nursing competence in managing OAC. Thus far, the measurement of self-efficacy in OAC is undermined by the unavailability of valid and reliable tools.MethodsA multi-method and multi-phase design was adopted: Phase one was a methodological study encompassing developmental tasks for generating items. Phase two comprised the validation process for determining the content validity, construct and concurrent validity, and internal consistency through two cross-sectional data collections.ResultsIn total, 190 nurses were enrolled for determining the psychometric structure of the SE-OAM through an exploratory approach, and 345 nurses were subsequently enrolled to corroborate its most plausible factor structure derived from the exploratory analysis. The SE-OAM showed evidence of face and content validity, adequate construct, concurrent validity, good internal consistency, and stability. The final version of the scale encompassed 21 items kept by five domains: clinical management, care management, education, clinical monitoring, and care monitoring.ConclusionsThe SE-OAM showed evidence of initial validity and reliability, fulfilling a current gap in the availability of tools for measuring nursing self-efficacy in managing OAC. SE-OAM could be strategic for performing research to improve the quality of OAC management by enhancing nursing self-efficacy.     

Retraining Visual Processing Skills To Improve Driving Ability After Stroke

Crotty M, George S. Retraining visual processing skills to improve driving ability after stroke.

Objective

To evaluate the effectiveness of retraining using the Dynavision on driving performance of people with stroke.

Design

Randomized controlled trial.

Setting

Outpatient rehabilitation clinic in Australia.

Participants

People with stroke (N=26) referred for driving assessment.

Interventions

Eligible participants were randomized to either receive retraining with the Dynavision apparatus for 18 sessions or to receive no intervention and go onto a waitlist.

Main Outcome Measures

The primary outcome was an assessment of on-road ability. Secondary outcomes included measures of response speed, visual scanning, and self-efficacy. All assessments were conducted by assessors blinded to group assignment.

Results

No significant difference (P=.223) was found between the intervention and control groups in results of on-road assessment in terms of pass or fail; the primary outcome measure; or the results on the secondary outcome measures of response speed, visual scanning, and self-efficacy.

Conclusions

In this small trial, training underlying skills (such as executing a continuous wide scan, combining motor and visual processing into a motor response) using the Dynavision apparatus did not improve the outcomes of an on-road assessment for people after strokes. Larger trials are needed to evaluate devices that claim to retrain underlying skills related to driving.     

Monitoring the functional health status of stroke patients: the value of the Stroke-Adapted Sickness Impact Profile-30

Purpose:?To further validate the Stroke-Adapted Sickness Impact Profile-30 (SA-SIP30) and to determine its responsiveness in a stroke rehabilitation population.

Method:?Data of 122 communicative stroke patients (mean age 57 years), selected for an inpatient rehabilitation programme, were available. All had suffered different types of stroke. Six months and one year post-stroke, the patients completed the SIP68 plus nine stroke-specific questions from the SIP136, enabling us to derive the SA-SIP30 from the questionnaire. We determined internal consistency, construct and clinical validity and responsiveness of the SA-SIP30. Total, physical and psychosocial dimension scores were calculated.

Results:?Internal consistency was moderate to good (α?>?0.68) and correlation between the SIP68 and the SA-SIP30 was high (r?>?0.85), indicating good construct validity for total score and both dimension scores. Clinical validity assessment showed that total and psychosocial dimensions scores were significantly higher for patients with a cortical infarction compared to respectively subarachnoid haemorrhage and subcortical infarction (p?<?0.05). Effect sizes for the SA-SIP30 were moderate (between 0.56 and 0.65).

Conclusions:?The SA-SIP30 proved valid and responsive in our stroke rehabilitation population. The major advantages of the SA-SIP30 are the lesser number of items and, therefore, the shorter completion time and the fact that it is a stroke-specific scale to determine health-related functional status.     

Validity,reliability and predictive accuracy of the Driving Awareness Questionnaire

Purpose.?To examine the psychometric properties of the Driving Awareness Questionnaire (DriveAware) and to compare this rating of awareness of driving ability with the rating made in the context of an on-road assessment.

Method.?A prospective design was employed to examine the psychometric properties of DriveAware using Rasch analysis. Participants (n = 91) with varying diagnoses were recruited from two driving rehabilitation centres in Sydney, Australia. They completed DriveAware in the context of a standard driving assessment. Awareness of driving ability determined by DriveAware was compared with awareness determined in the on-road assessment.

Results.?Rasch analysis provided good evidence for construct validity and inter-rater reliability and some evidence for internal reliability of DriveAware. The item hierarchy was logical and goodness-of-fit statistics for four of five items were within an acceptable range. The test had a moderate reliability index (0.73). Measurement precision could be improved by including more items to assess drivers with little awareness. When compared with the on-road measure of awareness, the best DriveAware cut-off score yielded sensitivity of 84% and specificity of 94%.

Conclusion.?This short and easy-to-administer test could provide a useful tool with sound psychometric properties to measure awareness of driving ability.     

Self-efficacy in adolescent girls and boys with insulin-dependent diabetes mellitus

Adolescents with insulin-dependent diabetes mellitus (IDDM) face increasing responsibilities for managing their own treatment. For some, implementing their treatment regimen enhances diabetes self-efficacy beliefs because they welcome the chance to exert control over their illness. Other adolescent patients, however, feel overwhelmed and helpless. We developed the self-efficacy for diabetes scale (SED) with a sample of adolescent boys (n = 34) and girls (n = 34) with IDDM. High reliability (internal consistency) and evidence for criterion validity were obtained for this measure, because SED scores predicted metabolic control. In addition, construct validity was established, because SED scores were related to theoretically relevant measures of locus of control and self-esteem. Although they showed similar expectancies for diabetes self-efficacy, girls had significantly positive correlations between their SED scores and metabolic control, whereas boys did not. We offer a new instrument for studying adolescent patient perceptions and physical health.     

The development and testing of an instrument to measure self-efficacy in individuals with epilepsy.

The purpose of this study was to develop and test an instrument to measure self-efficacy in persons with epilepsy. With Bandura's self-efficacy theory serving as the conceptual basis for instrument development, the study was divided into two phases, an instrument development phase and a reliability and validity assessment phase. In phase one, self-efficacy and epilepsy literature along with discussions with epilepsy patients served as sources for item derivation. A panel of experts reviewed the instrument for content validity. In phase two, testing of the instrument for reliability and validity was done using different groups of epilepsy patients. Reliability coefficients ranged from .81 for test-retest reliability to .93 for internal consistency. A strong positive correlation between self-efficacy and social support (r = .48, p less than .001) and between self-efficacy and self-management (r = .50, p less than .001) provided evidence to support the construct validity of the instrument.     

Evaluation of two assessment tools in predicting driving ability of senior drivers

OBJECTIVE: To evaluate Motor Free Visual Perceptual Test (MVPT) and Clock Drawing Task (clock test) as quick assessment tools in predicting driving capability of senior drivers for an on-road driving test. DESIGN: Senior drivers (> or = 55 yrs) referred for evaluation and recommendation for license renewal were given the MVPT, clock test, and an on-road driving test. Receiving operating characteristic (ROC) analysis and stepwise multivariate logistic regression (SMLR) were used to develop a probability model to differentiate between capable and incapable senior drivers. RESULTS: Data for 232 seniors who had completed all written tests and the on-road driving test were analyzed. Of the 232 seniors, 131 (56%) were classified as capable and 101 (44%) as incapable drivers on the road test. Mean scores for capable and incapable drivers were MVPT 32.0 +/- 4.0 vs. 28.4 +/- 4.6 and mean clock test score 3.5 +/- 0.8 vs. 2.7 +/- 1.2, and mean processing time was 7.1 + 6.5 vs. 10.6 + 5.5. The means of the three measurements were significantly different between the two groups (P value <0.001). ROC curve analysis revealed an optimal cut point of > or = 32 for MVPT score with 60% sensitivity and 83% specificity. The optimal cut point for clock test scores is > or = 3 with 70% sensitivity and 65% specificity. The optimal cut point for processing times is < or = 6.27 secs with 60% sensitivity and 80% specificity. SMLR showed that the most significant predictor of seniors' driving capabilities are the MVPT test scores and clock test scores. CONCLUSION: MVPT and clock test tools are significant predictors of driving capability on an on-road driving test.     

简体版改良Barthel指数在脑卒中恢复期中的信度与效度研究

目的:观察简体版改良Barthel指数量表(MBI)在评定脑卒中患者恢复期基础性日常生活活动(BADL)的信度和效度。方法:由2名研究员对100名符合入选标准的脑卒中恢复期患者进行BADL评定。在患者入院的次日,上午由评定员A、B使用MBI分别对每位患者的BADL进行评定,下午由评定员A使用MBI、评定员B使用BI分别对每位患者的BADL进行再次评定,收集整理数据并加以分析。采用相关系数(ICC)值描述评价者的重测信度、评价者间信度,采用Cronbach’sα系数进行计算量表的内部一致性;邀请6名高级职称康复专家对简体版MBI的内容效度(CVI)进行评估,采用Spearman相关性检验分析简体版MBI的校标效度(以BI为金标准),采用KMO检验、Bartlett球形检验和因子分析方法来分析构想效度。结果:6名专家对简体版MBI的条目水平CVI为0.83~1,量表水平CVI均值为0.95;简体版MBI各个条目、总分的重测信度为ICC=0.909~0.991;简体版MBI各个条目、总分的评定者间信度为ICC=0.880~0.992;简体版MBI内部一致性Cronbach’α系数为0.929;以BI为金标准,简体版MBI的校标效度(Spearman相关系数)依次为:进食(0.562)、个人卫生(0.701)、洗澡(0.715)、如厕(0.785)、穿衣(0.684)、大便控制(0.690)、小便控制(0.630)、床椅转移(0.925)、步行/轮椅(0.864)、上下楼梯(0.877)、总分(0.941),均P<0.001;简体版MBI构想效度结果显示,KMO统计量为0.877,Bartlett球形检验拒绝相关阵是单位阵(P<0.05),80.28%的总方差可由2个公因子解释,旋转后因子1有:洗澡、穿衣、如厕、床椅转移、步行/轮椅、上下楼;旋转后因子2有:进食、个人卫生、大便控制、小便控制。结论:简体版MBI量表不仅具有良好内容效度、重测信度、评定者间信度、内部一致性、校标效度和构想效度,而且易于掌握、使用方便。     

Instrument development: cardiac diet and exercise self-efficacy.

Self-efficacy has been documented as a strong predictor of health behaviors. Unfortunately, availability of reliable and valid measures of self-efficacy for a range of health behaviors is still limited. This study validated two measures of cardiac risk factor self-efficacy: the Cardiac Diet Self-Efficacy Instrument (CDSEI) and the Cardiac Exercise Self-Efficacy Instrument (CESEI). A sample of 370 cardiac rehabilitation participants provided data for principal factor analyses showing the unidimensionality of each instrument. Known groups construct validity was supported by a comparison of CDSEI and CESEI scores for cardiac rehabilitation participants and marathon runners. The value of CDSEI and CESEI scores in predicting subsequent exercise and diet performance was demonstrated with a third group of cardiac rehabilitation participants. Stability and internal consistency estimates in the .80s and .90s, respectively, support the scales' reliabilities.     

Instrument development of the Self-Efficacy Scale for Abused Women

The development of a scale to measure an abused woman's self-efficacy is described. The Self-Efficacy Scale for Abused Women (SESAW) originally was a 27-item 100-mm visual analog scale. It underwent face and content validity testing and was administered to a community sample of abused women (N = 50). The SESAW was tested for internal consistency, test-retest reliability, and construct validity. Cronbach's alphas were.95 and.96 at times 1 and 2, respectively. The bivariate correlation between the SESAW at times 1 and 2 was r =.85, p <.01. Construct validity was established by a moderate bivariate correlation with the criterion as measured by the Self-Efficacy Scale-general/global subscale (r =.64, p <.01 at time 1, and r =.78, p <.01 at time 2). The SESAW was streamlined to 19 items. The SESAW is an acceptable measure of situation-specific self-efficacy in community-based abused women.     

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.

     

P-drive: assessment of driving performance after stroke.

OBJECTIVE: To investigate aspects of validity and stability of Performance Analysis of Driving Ability (P-Drive), for people with stroke when used in a driving simulator. DESIGN: A cross-sectional observational study. SUBJECTS: The study included a consecutive series of 101 participants with stroke referred for evaluation or selected from a stroke registry. METHODS: P-Drive was used to observe driving performance in order to assess driving ability. P-Drive comprises 20 items assessing the quality of the participant's driving performance. Aspects of validity and reliability in P-Drive were evaluated using Rasch statistics. RESULTS: The items (95%) and participants (97%) demonstrated acceptable goodness-of-fit and met statistical expectations according to the Rasch model. The results support internal scale validity and person response validity. P-Drive could separate the participants with different driving abilities and the standard errors were within reasonable criteria for drivers with a moderate-to-low ability to drive. CONCLUSION: The findings from this study indicated that P-Drive is an assessment tool with properties of internal scale validity, person response validity, and which also contains aspects of reliability in relation to precision of the estimates and separation. P-Drive seems to be a valid and stable assessment tool for assessing the driving ability in a simulator of people with stroke.     

Evaluation of the shortened Cholesterol-Lowering Diet Self-Efficacy Scale.

Specificity in the self-efficacy construct requires that instruments assess domain-specific behaviors. The objectives of the study were to (1) reexamine and shorten the original 57-item Cholesterol-Lowering Diet Self-Efficacy Scale (CLDSES), (2) estimate reliability and validity of the short form CLDSES (CLDSES-SF), (3) examine the dimensionality of the CLDSES-SF, (4) examine discriminant validity of the scale by its ability to differentiate between adherence and nonadherence to saturated fat intake guidelines, and (5) examine the CLDSES-SF's sensitivity and specificity. A sample of 238 patients being treated for hypercholesterolemia completed three instruments: the CLDSES, the Connor Diet Habit Survey (DHS) and a Three-Day Food Record. Internal consistency for the CLDSES-SF was .95. The inter-correlation coefficients among the seven sub-scales ranged from .28 to .62, and for the total to sub-scales .58 - .87, significant at p < .001. Evidence for criterion validity was shown in the correlations between the CLDSES-SF and the Connor DHS scores and between the CLDSES-SF and the Three-Day Food Record. Factor analysis showed a one-factor model that fits the data with a sufficient amount of total variance explained among the seven subscale items in each subscale, providing evidence of the uni-dimensionality of each subscale. Sensitivity (76%) and specificity (63%) for the CLDSES-SF were good with 88% positive predictive value for adherence. The shortened CLDSES retained its good psychometric properties and remains comprehensive in its assessment of self-efficacy for adherence to a cholesterol-lowering diet.