Driving and community integration after traumatic brain injury

Rapport LJ, Coleman Bryer R, Hanks RA. Driving and community integration after traumatic brain injury.

Objective

To examine resumption of driving after traumatic brain injury (TBI) and its relation to community integration.

Design

Cross-sectional cohort study; survey and cognitive data.

Settings

Inpatient rehabilitation hospital of the Traumatic Brain Injury Model Systems and community.

Participants

Persons (N=261) ranging from 3 months to 15 years postinjury.

Interventions

Not applicable.

Main Outcome Measures

Barriers to Driving Questionnaire, Driver Survey, Community Integration Measure, and Craig Hospital Assessment and Reporting Technique.

Results

Forty-four percent of survivors had resumed driving; of nondrivers, 48% reported a strong desire to resume driving. Nondriver survivors who sought to resume driving generally rated themselves as currently fit to drive, viewed themselves as having physical and cognitive profiles like those of survivor drivers, and reported their greatest barriers to driving as social and resource related. However, cognitive functioning was similar to nondriver survivors who did not seek to resume driving and significantly worse than survivors who were currently driving. Nondrivers showed poorer community integration than did drivers, even after accounting for injury severity, social support, negative affectivity, and use of alternative transportation. Use of alternative transportation was common among nondrivers, but it was unrelated to community integration outcomes. Cognitive functioning moderated risk of adverse incident: among survivors with low cognitive functioning and high self-estimates of driving ability, which is indicative of unawareness of deficit, adverse incidents showed positive relation to amount of driving and inverse relation to cognitive functioning.

Conclusions

Driving status has unique and independent association with post-TBI community integration. Additional research is needed to evaluate transportation barriers that undermine full engagement in community living after TBI and to determine which barriers to driving reflect valid risk to survivors and the public.     

Predicting Fitness to Drive in People With Cognitive Impairments by Using DriveSafe and DriveAware

Kay LG, Bundy AC, Clemson LM. Predicting fitness to drive in people with cognitive impairments by using DriveSafe and DriveAware.

Objectives

To examine the psychometric properties of DriveSafe and DriveAware and their predictive validity.

Design

Prospective study compared screening tests with criterion standard.

Setting

Two driving rehabilitation centers affiliated with a university and a geriatric rehabilitation facility.

Participants

Consecutive sample of drivers with functional impairments (n=115) and subgroup of drivers with cognitive impairments (n=96) referred for a driving assessment.

Interventions

Not applicable.

Main Outcome Measure

Driving performance was measured by a standardized assessment in real traffic.

Results

Rasch analysis provided evidence for construct validity and internal reliability of both tests. Tests trichotomized drivers into unsafe, safe, and further testing categories. The optimal lower cutoff identified unsafe drivers with a specificity of 97% (95% confidence interval [CI], 83-100) in the test sample and 96% (95% CI, 80-100) in the validation sample. The optimal upper cutoff identified safe drivers with a sensitivity of 93% (95% CI, 77-99) and 95% (95% CI, 76-100), respectively.

Conclusions

By using DriveSafe and DriveAware, drivers with cognitive impairments referred for a driving assessment can be categorized as unsafe, safe, or requiring further testing, with only 50% needing an on-road assessment. Before clinical practice is changed, these findings should be replicated.     

Emergency medical vehicle collisions and potential for preventive intervention

Background

Emergency medical vehicle collisions (EMVCs) cause significant injury, death, and property damage every year in the United States and result in significant delays in transporting patients to the hospital.

Objective

To identify factors associated with EMVCs that are potentially amenable to preventive intervention.

Methods

The authors reviewed data from the Paramedic Division of the Denver Health and Hospital Authority (DHHA) on all EMVCs occurring from 1989 through 1997.

Results

A T-bone mechanism, collision at an intersection, and alcohol intoxication of the civilian driver were all significant predictors of collisions resulting in injury (odds ratios of 29.7, 4.3 and 6.1, respectively, p<0.05, multiple logistic regression). Although only 75% of the division's responses are run with warning lights and sirens (WLS), a disproportionate 91% of response mode collisions were during a WLS response. The responsible EMV driver had a history of multiple EMVCs in 71% of the collisions.

Conclusions

Potential interventions suggested by this study include the need for EMV drivers to visually clear the intersection before entering it, alerting other drivers with visual and auditory warning systems, and attempting to make eye contact with them at an intersection. The authors recommend continued public education regarding the risks of drunk driving. The authors feel that the WLS driving mode is best reserved for patients in whom the benefits of shorter response and return times outweigh the risk of collision. Finally, the authors advocate careful review of drivers' collision history, frequent emergency vehicle operator's course retraining, and appropriate discipline when necessary.     

Self-reported driving habits in subjects with persistent whiplash-associated disorder: relationship to sensorimotor and psychologic features

Pereira MJ, Jull GA, Treleaven JM. Self-reported driving habits in subjects with persistent whiplash-associated disorder: relationship to sensorimotor and psychologic features.

Objectives

To study self-reported driving habits after whiplash injury and to determine any relation among self-reported driving habits, selected sensorimotor impairments, and psychologic features.

Design

Repeated-measures, case-controlled.

Setting

Tertiary institution.

Participants

Subjects (n=30) with chronic whiplash and 30 asymptomatic controls.

Interventions

Not applicable.

Main Outcome Measures

The Driving Habits Questionnaire (composite driving tasks score), Neck Disability Index (NDI), 28-item General Health Questionnaire (GHQ-28), Impact of Events Scale−Revised (IES-R), Tampa Scale for Kinesiophobia, cervical range of motion, cervical joint position error, and smooth pursuit neck torsion test.

Results

Subjects in the whiplash group had equal driving exposure and driving spaces (distances, locations) compared with control subjects but reported significantly more driving difficulty with most driving tasks (P<.01). There were no significant correlations between the composite driving tasks score and any of the sensorimotor impairments, but there were significant and moderate correlations between the composite driving task score and both pain and disability (NDI score, .518) and anxiety (GHQ-28 score, .518; IES-R score, .524).

Conclusions

Persons with chronic whiplash have greater self-reported driving difficulty than controls, which appears to relate more to reported levels of pain and disability and psychologic stress than laboratory measures of features of cervical sensorimotor control.     

Examining the Relationship Between Cognition and Driving Performance in Multiple Sclerosis

Schultheis MT, Weisser V, Ang J, Elovic E, Nead R, Sestito N, Fleksher C, Millis SR. Examining the relationship between cognition and driving performance in multiple sclerosis.

Objective

To identify cognitive predictors of driving performance after multiple sclerosis (MS).

Design

Prospective design examining predictive value of cognitive measures on driving performance.

Setting

All data were collected in an outpatient research setting and an outpatient driver rehabilitation program.

Participants

Participants were community-dwelling persons (N=66) with clinically defined MS (86% relapsing-remitting, 14% progressive) with a mean age of 43.47 years. All were active drivers who met vision requirements established by their respective states, and none required adaptive driving equipment.

Intervention

Not applicable.

Main Outcome Measures

Participants were administered a comprehensive neuropsychologic assessment and a clinical behind-the-wheel (BTW) driving evaluation. Additional measures of driving performance included history of traffic violations and collisions (since MS onset).

Results

Logistic regression indicated that information processing speed (Symbol Digit Modality Test [SDMT]) was the strongest predictor of BTW performance. A logistic regression revealed that the strongest predictors of collision and violation frequency were visuospatial learning and recall (7/24 Spatial Recall Test [SPART 7/24]).

Conclusions

These findings indicate that information processing and visuospatial skills are predictive of driving performance among persons with MS. These measures (SDMT and SPART 7/24) may serve as screening methods for identifying the potential impact of cognitive impairment on driving. Furthermore, the findings raise questions regarding the appropriateness of the BTW evaluation to evaluate driving difficulties accurately among individuals with MS.     

Vision and Driving in Multiple Sclerosis

Schultheis MT, Manning K, Weisser V, Blasco A, Ang J, Wilkinson ME. Vision and driving in multiple sclerosis.

Objective

To examine the relationship between measures of visual dysfunction and driving performance in persons with multiple sclerosis (MS).

Design

Between-group comparison.

Setting

All data were collected in an outpatient research setting.

Participants

Persons (N=66) with MS of the relapsing remitting type (26 self-reporting visual difficulties; 40 self-reporting no visual difficulties) and 26 age- and sex-matched healthy controls.

Interventions

Not applicable.

Main Outcome Measures

Measures of vision included visual acuity, depth perception, and color perception. Driving was measured using documented accident/violation rate and self-reported driving behaviors.

Results

Quantitative analysis only revealed that MS persons with self-reported visual difficulties performed significantly worse than healthy controls on color perception (Kruskal-Wallis; χ₂²=8.89, P=.01). There were no group differences on driving behaviors, and correlational analysis revealed a lack of relationship between the selected visual (visual acuity, depth perception, color perception) and driving performance measures (documented accident/violation rate and self-limiting driving behaviors).

Conclusions

Persons with MS who self-reported difficulties with vision had acceptable visual acuity, despite demonstrating impairment in color perception. The fact that visual acuity remains the most common measure for visual fitness to drive remains problematic. There is a need to further define measures of visual dysfunction relevant to driving among this clinical population.     

Development of a wheelchair virtual driving environment: trials with subjects with traumatic brain injury

Spaeth DM, Mahajan H, Karmarkar A, Collins D, Cooper RA, Boninger ML. Development of a wheelchair virtual driving environment: trials with subjects with traumatic brain injury.

Objective

To develop and test a wheelchair virtual driving environment that can provide quantifiable measures of driving ability, offer driver training, and measure the performance of alternative controls.

Design

A virtual driving environment was developed. The wheelchair icon is displayed in a 2-dimensional, bird's eye view and has realistic steering and inertial properties. Eight subjects were recruited to test the virtual driving environment. They were clinically evaluated for range of motion, muscle strength, and visual field function. Driving capacity was assessed by a brief trial with an actual wheelchair. During virtual trials, subjects were seated in a stationary wheelchair; a standard motion sensing joystick (MSJ) was compared with an experimental isometric joystick by using a repeated-measures design.

Setting

Subjects made 2 laboratory visits. The first visit included clinical evaluation, tuning the isometric joystick, familiarization with virtual driving environment, and 4 driving tasks. The second visit included 40 trials with each joystick.

Participants

Subjects (n=8; 7 men, 1 woman) with a mean age of 22.65±2y and traumatic brain injury, both ambulatory and nonambulatory, were recruited.

Interventions

The MSJ used factory settings. A tuning program customized the isometric joystick transfer functions during visit 1. During the second visit, subjects performed 40 trials with each joystick.

Main Outcome Measure

The root mean square error (RMSE) was defined as the average deviation from track centerline (in meters) and speed (in m/s).

Results

Data analysis from the first 8 subjects showed no statistically significant differences between joysticks. RMSE averaged .12 to .21m; speed averaged .75m/s. For all tasks and joysticks, driving in reverse resulted in a higher RMSE and more virtual collisions than forward driving. RMSE rates were greater in left and right turns than straight and docking tasks.

Conclusions

Testing with instrumented real wheelchairs can validate the virtual driving environment and assess whether virtual driving skills transfer to actual driving.     

Patient Factors Associated With Return to Driving Poststroke: Findings From a Multicenter Cohort Study

Perrier M-J, Korner-Bitensky N, Mayo NE. Patient factors associated with return to driving poststroke: findings from a multicenter cohort study.

Objective

To estimate the extent to which body structure, function, activity, and context explain driving resumption at 1 year.

Design

Cohort study with relationships modeled in a path analysis.

Setting

Three urban Canadian communities.

Participants

Patients admitted to hospital with acute stroke who had driven before their stroke (n=290) who participated in a longitudinal study of stroke outcomes.

Main Outcome Measures

Driving resumption 1 year after the initial stroke diagnosis.

Results

One hundred seventy-seven patients (61%) returned to driving after 1 year. Direct relationships were found between measures of strength and motor activity (Stroke Impact Scale), cognition (Mini-Mental State Examination), type of stroke (hemorrhagic vs ischemic), and driving resumption at 1 year. The effects of stroke severity, fatigue, and sex on driving resumption were mediated through strength and motor activity shown by a model that had excellent fit (comparative fit index=.985, Tucker-Lewis Index=.952, root mean square error of approximation=.046).

Conclusions

There are multiple direct and indirect influences on driving resumption at 1 year, from the type of stroke, physical strength and motor activity, cognition, sex, and fatigue measured at 3 months. The paths outlined by this model highlight how stroke sequelae influence community mobility, as well as factors related to driving resumption that are amenable to intervention.     

Rasch analysis of the barthel index in the assessment of hospitalized older patients after admission for an acute medical condition

de Morton NA, Keating JL, Davidson M. Rasch analysis of the Barthel Index in the assessment of hospitalized older patients after admission for an acute medical condition.

Objective

To investigate the validity of item score summation for the original and modified versions of the Barthel Index.

Design

Rasch analysis of Barthel Index data.

Setting

General medical wards at 2 acute care hospitals in Australia.

Participants

Consecutive older medical patients (N=396).

Interventions

Not applicable.

Main Outcome Measures

Activity limitation was assessed by using the Barthel Index at hospital admission and discharge. At 1 hospital site, the original Barthel Index was used, and at the other hospital site the Modified Barthel Index (MBI) was used.

Results

More than half of the items showed misfit to the Rasch model for both versions of the Barthel Index. The continence items appear to measure a different construct to the other items. After the removal of the continence items, data for the remaining items still did not fit the Rasch model. Neither the original nor the MBI are unidimensional scales. An exception to this occurred when the original Barthel Index was rescored and only then for discharge and not for admission Barthel Index data.

Conclusions

Because clinicians do not typically rescore outcomes obtained by using the Barthel Index, these findings, combined with unacceptable ceiling effects, render the Barthel Index an assessment tool with limited validity for measuring and monitoring the health of older medical patients.     

Clinimetric evaluation of the physical mobility scale supports clinicians and researchers in residential aged care

Barker AL, Nitz JC, Low Choy NL, Haines TP. Clinimetric evaluation of the Physical Mobility Scale supports clinicians and researchers in residential aged care.

Objective

To investigate the interrater agreement and the internal construct validity of the Physical Mobility Scale, a tool routinely used to assess mobility of people living in residential aged care.

Design

Prospective, multicenter, external validation study.

Setting

Nine residential aged care facilities in Australia.

Participants

Residents (N=186). Phase 1 cohort (99 residents; mean age, 85.22±5.1y); phase 2 cohort (87 residents; mean age, 81.59±10.69y).

Interventions

Not applicable.

Main Outcome Measures

Kappa statistics, minimal detectable change (MDC₉₀) scores, and Bland-Altman plots were used to assess interrater agreement. Scale unidimensionality, item hierarchy, and person separation were examined with Rasch analysis for both cohorts.

Results

Agreement between raters on 6 of the 9 Physical Mobility Scale items was high (κ>.60). The MDC₉₀ value was 4.39 points, and no systematic differences in scores between raters were found. The Physical Mobility Scale showed a unidimensional structure demonstrated by fit to the Rasch model in both cohorts (phase 1: χ²=23.90, P=.16, person separation index=0.96; phase 2: χ²=22.00, P=.23, person separation index=0.96). Standing balance was the most difficult item in both cohorts (phase 1: logit=2.48, SE, 0.16; phase 2: logit=2.53, SE, 0.15). The person-item threshold map indicated no floor or ceiling effects in either cohort.

Conclusions

The Physical Mobility Scale demonstrated good interrater agreement and internal construct validity with good fit to the Rasch model in both cohorts. The comparative results across the 2 cohorts indicate generality of the findings. The Physical Mobility Scale total raw scores can be converted to Rasch transformed scores, providing an interval measure of mobility. The Physical Mobility Scale may be suited to a range of clinical and research applications in residential aged care.     

Effects of Tai Chi Intervention on Dual-Task Ability in Older Adults: A Pilot Study

Hall CD, Miszko T, Wolf SL. Effects of Tai Chi intervention on dual-task ability in older adults: a pilot study.

Objective

To determine if a 12-week program of Tai Chi that has been shown to reduce falls incidence in older adults would improve the ability to allocate attention to balance under dual-task conditions.

Design

Pre-/posttest experimental research design.

Setting

Movement studies research laboratory.

Participants

Community dwelling older adults (N=15; range, 62-85y) participated in either Tai Chi training or health education classes (controls) for 12 weeks.

Interventions

Participants in the Tai Chi group attended a twice-weekly, 1.5-hour class taught by an experienced instructor. The control group attended a biweekly, 1-hour class for lectures on health-related topics.

Main Outcome Measures

Two cognitive tasks (responding to auditory or visual stimulus as quickly as possible) were performed concurrently while maintaining static balance during the Sensory Organization Test (SOT) and while avoiding obstacles while walking. The percent change in performance relative to the single-task condition was calculated and defined as the dual-task cost. The dual-task cost was calculated for both the postural and cognitive measures.

Results

There was no improvement in the performance of postural stability or cognitive task under dual-task conditions for the SOT for Tai Chi versus controls. There was no improvement in avoiding obstacles under dual-task conditions for Tai Chi versus controls.

Conclusions

Contrary to our hypothesis, the findings of this study did not support a benefit of Tai Chi on the ability to allocate attention to balance under dual-task conditions.     

Disparities in Utilization of Outpatient Rehabilitative Care Following Hip Fracture Hospitalization With Respect to Race and Ethnicity

Nguyen-Oghalai TU, Ottenbacher KJ, Kuo Y-F, Wu H, Grecula M, Eschbach K, Goodwin JS. Disparities in utilization of outpatient rehabilitative care following hip fracture hospitalization with respect to race and ethnicity.

Objective

To compare the prevalence of discharge home to self-care after hip fracture hospitalization among the elderly in 3 racial groups: whites, Hispanics, and blacks.

Design

Secondary data analysis.

Setting

US hospitals.

Participants

Patients (N=34,203) aged 65 and older with Medicare insurance discharged after hip fracture hospitalization between 2001 and 2005.

Interventions

Not applicable.

Main Outcome Measure

Discharge home to self-care.

Results

Bivariate analyses showed higher rates of discharge home to self-care among minorities, 16.4% for Hispanics, 8.7% for blacks, and 5.9% for whites. Hispanics had 3-fold higher odds of being discharged home to self-care, and blacks had about 50% higher odds of being discharged home to self-care after adjusting for age, sex, Klabunde's comorbidity index, income, year of admission, type of hip fracture, surgical stabilization procedure, and length of hospital stay.

Conclusions

The higher rate of discharge home to self-care among minorities underscores the risk of suboptimal outpatient rehabilitative care among minorities with hip fracture.     

Effects of a 12-Week Tai Chi Chuan Program Versus a Balance Training Program on Postural Control and Walking Ability in Older People

Lelard T, Doutrellot P-L, David P, Ahmaidi S. Effects of a 12-week Tai Chi Chuan program versus a balance training program on postural control and walking ability in older people.

Objective

To compare the respective effects of 2 balance training programs: a Tai Chi (TC) program and a balance training program on static postural control and walking ability.

Design

Randomized controlled trial.

Setting

General community.

Participants

Older subjects (N=28) participated in the study.

Interventions

The TC group (n=14; mean age ± SD, 76.8±5.1y) and the balance training group (n=14; 77.0±4.5y) were both trained for 12 weeks.

Main Outcome Measures

Static postural control was assessed via measurement of center of pressure sway under eyes open (EO) and eyes closed (EC) conditions. Walking speed over a 10-meter course was also assessed.

Results

After the 12-week training period, there were no significant differences in walking speed or postural parameters in either the EO or EC conditions for the TC and balance training groups. Performance in the EC condition was lower than in the EO condition in pretest and posttest for the balance training and TC groups. The Romberg quotient (EO/EC ratio) was significantly higher after the balance training program than the TC program (P<.05).

Conclusions

We cannot conclude that the balance training program has better effects than the TC program on postural control or walking ability. None of the outcome measures showed significant change posttraining in either the TC or the balance training groups. However, the differences described in the Romberg quotient after the training period between the TC and the balance training groups suggest that TC should be helpful to limit the deleterious effects of eye closure on postural balance.     

Effects of resistance training on lower-extremity impairments in older people with hip fracture

Portegijs E, Kallinen M, Rantanen T, Heinonen A, Sihvonen S, Alen M, Kiviranta I, Sipilä S. Effects of resistance training on lower-extremity impairments in older people with hip fracture.

Objective

To study the effects of resistance training on muscle strength parameters, mobility, and balance.

Design

Randomized controlled trial.

Setting

Research laboratory and senior gym.

Participants

Population-based sample of eligible 60- to 85-year-old community-dwelling men and women 0.5 to 7.0 years after hip fracture. Forty-six people had no contraindications and were willing to participate in the exercise trial.

Intervention

Twelve-week intensive progressive strength-power training (n=24), aiming to reduce asymmetric deficit in leg muscle strength and power, or no intervention (n=22).

Main Outcome Measures

Isometric knee extension torque (KET) and leg extension power (LEP) measured in the weaker and stronger leg and the asymmetric deficit ([weak/sum both legs] × 100%), 10-m walking speed, dynamic balance test, and self-reported outdoor mobility.

Results

KET increased in both legs (P<.021), LEP tended to increase in the weaker leg (P=.071), and asymmetric LEP deficit decreased (P=.010) after training compared with the control group. LEP of the stronger leg, asymmetric KET deficit, walking speed, and balance performance were not significantly affected by training. Self-reported ability to walk outdoors improved after training. The compliance to the training was over 90%, and few adverse events (n=4; mainly musculoskeletal) were likely to be caused by the training.

Conclusions

Intensive resistance training is feasible for people with a hip fracture and improved muscle strength and power. More intensive training especially for the weaker leg may be needed to obtain more marked effects on asymmetric deficit, mobility, and balance. Also, the timing and duration of training program should be considered. (ISRCTN identifier ISRCTN34271567.)     

Impact of Surface Type, Wheelchair Weight, and Axle Position on Wheelchair Propulsion by Novice Older Adults

Cowan RE, Nash MS, Collinger JL, Koontz AM, Boninger ML. Impact of surface type, wheelchair weight, and axle position on wheelchair propulsion by novice older adults.

Objective

To examine the impact of surface type, wheelchair weight, and rear axle position on older adult propulsion biomechanics.

Design

Crossover trial.

Setting

Biomechanics laboratory.

Participants

Convenience sample of 53 ambulatory older adults with minimal wheelchair experience (65-87y); men, n=20; women, n=33.

Intervention

Participants propelled 4 different wheelchair configurations over 4 surfaces: tile, low carpet, high carpet, and an 8% grade ramp (surface, chair order randomized). Chair configurations included (1) unweighted chair with an anterior axle position, (2) 9.05kg weighted chair with an anterior axle position, (3) unweighted chair with a posterior axle position (Δ0.08m), and (4) 9.05kg weighted chair with a posterior axle position (Δ0.08m). Weight was added to a titanium folding chair, simulating the weight difference between very light and depot wheelchairs. Instrumented wheels measured propulsion kinetics.

Main Outcome Measures

Average self-selected velocity, push frequency, stroke length, peak resultant and tangential force.

Results

Velocity decreased as surface rolling resistance or chair weight increased. Peak resultant and tangential forces increased as chair weight increased, as surface resistance increased, and with a posterior axle position. The effect of a posterior axle position was greater on high carpet and the ramp. The effect of weight was constant, but was more easily observed on high carpet and ramp. The effects of axle position and weight were independent of one another.

Conclusion

Increased surface resistance decreases self-selected velocity and increases peak forces. Increased weight decreases self-selected velocity and increases forces. Anterior axle positions decrease forces, more so on high carpet. The effects of weight and axle position are independent. The greatest reductions in peak forces occur in lighter chairs with anterior axle positions.     

Older people's and relatives’ experiences in acute care settings: Systematic review and synthesis of qualitative studies

Objective

To explore older people's and their relatives’ views on and experiences of acute health care.

Design

Systematic procedures were used for study selection and data extraction and analysis. A comparative thematic approach to synthesis was taken with a number of features adopted from the literature on meta-ethnography.

Data sources

Worldwide grey and published literature written in English between January 1999 and June 2008 identified from databases: CINAHL, Medline, British Nursing Index, EMBASE Psychiatry, International Bibliography of the Social Sciences, PsychINFO, and AgeInfo.

Review methods

We conducted a systematic review and synthesis of qualitative studies describing older patients’ and/or their relatives’ experiences of care in acute hospital settings. 42 primary studies and 1 systematic review met the inclusion criteria.

Results

A number of themes emerged. The quality of technical care is often taken for granted by older patients, and good or bad experiences are described more in terms of relational aspects of care. Older patients in hospital may feel worthless, fearful or not in control of what happens, especially if they have impaired cognition, or communication difficulties. Three key features of care consistently mediated these negative feelings and were linked to more positive experiences: “creating communities: connect with me”, “maintaining identity: see who I am” and “sharing decision-making: include me”.

Conclusion

These findings highlight the perspectives of older people and their relatives on the delivery of personalized and dignified care in acute settings. They lend support to previous calls for relationship-centred approaches to care and provide a useful experience-based framework for practice for those involved in care for older people.     

Poor sleep quality and changes in objectively recorded sleep after traumatic brain injury: a preliminary study

Parcell DL, Ponsford JL, Redman JR, Rajaratnam SM. Poor sleep quality and changes in objectively recorded sleep after traumatic brain injury: a preliminary study.

Objectives

To evaluate changes in sleep quality and objectively assessed sleep parameters after traumatic brain injury (TBI) and to investigate the relationship between such changes and mood state and injury characteristics.

Design

Survey and laboratory-based nocturnal polysomnography.

Setting

Sleep laboratory.

Participants

Ten community-based subjects with moderate to very severe TBI and 10 age- and sex-matched controls from the general community.

Interventions

Not applicable.

Main Outcome Measures

Pittsburgh Sleep Quality Index for self-report sleep quality, nocturnal polysomnography for objective sleep recording, and Hospital Anxiety and Depression Scales.

Results

Compared with controls, TBI patients reported significantly poorer sleep quality and higher levels of anxiety and depression. Objective sleep recording showed that TBI patients showed an increase in deep (slow wave) sleep, a reduction in rapid eye movement sleep, and more frequent nighttime awakenings. No significant relationship was observed between these changes in sleep and injury severity or time since injury. Anxiety and depression covaried with the observed changes in sleep.

Conclusions

The findings contribute to the growing body of evidence that sleep is involved in the physiologic processes underlying neural recovery. The association between anxiety and depression and the observed changes in sleep in TBI patients warrants further examination to determine whether a causative relationship exists.     

Adverse Events Reported in Progressive Resistance Strength Training Trials in Older Adults: 2 Sides of a Coin

Liu C, Latham N. Adverse events reported in progressive resistance strength training trials in older adults: 2 sides of a coin.

Objectives

To summarize adverse events reported in randomized controlled trials that applied progressive resistance strength training in older adults and to examine factors that might be associated with these events.

Design

After systematic searches of databases, 2 reviewers independently screened and extracted adverse event-related information from identified trials.

Setting

Not applicable.

Participants

Older adults 60 years of age and above (N = 6700).

Intervention

Muscle strength training exercise that increases load gradually.

Main Outcome Measures

Adverse events and reasons for dropout. Adverse events include any undesirable outcomes that may be directly related or unrelated to the intervention.

Results

Among 121 trials identified, 53 trials provided no comments about adverse events, 25 trials reported no adverse events occurred, and 43 trials reported some types of adverse events. Most adverse events reported were musculoskeletal problems such as muscle strain or joint pain. Adverse events were reported more often in trials that recruited participants with certain health conditions, functional limitations, or sedentary lifestyle; in trials that applied high intensity; and in trials that were published after the 2001 Consolidated Standards of Reporting Trials statement had been published. Reasons reported for dropout in 58 trials might be related to adverse events. The most frequent reasons for dropout were illness or medical problems.

Conclusions

Adverse events may be underreported because there is no consensus on the definition. Reporting adverse events associated with progressive resistance strength training in older adults is informative for practitioners to translate clinical research to clinical practice by knowing both the benefits and risks. Future trials should clearly define adverse events and report them in the published article.     

Personal Bankruptcy After Traumatic Brain or Spinal Cord Injury: The Role of Medical Debt

Relyea-Chew A, Hollingworth W, Chan L, Comstock BA, Overstreet KA, Jarvik JG. Personal bankruptcy after traumatic brain or spinal cord injury: the role of medical debt.

Objective

To estimate the prevalence of medical debt among traumatic brain injury (TBI) and spinal cord injury (SCI) patients who discharged their debts through bankruptcy.

Design

A cross-sectional comparison of bankruptcy filings of injured versus randomly selected bankruptcy petitioners.

Setting

Patients hospitalized with SCI or TBI (1996-2002) and personal bankruptcy petitioners (2001-2004) in western Washington State.

Participants

Subjects (N=186) who filed for bankruptcy, comprised of 93 patients with previous SCI or TBI and 93 randomly selected bankruptcy petitioners.

Interventions

Not applicable.

Main Outcome Measures

Medical and nonmedical debt, assets, income, expenses, and employment recorded in the bankruptcy petition.

Results

Five percent of randomly selected petitioners and 26% of petitioners with TBI or SCI had substantial medical debt (debt that accounted for more than 20% of all unsecured debts). SCI and TBI petitioners had fewer assets and were more likely to be receiving government income assistance at the time of bankruptcy than controls. SCI and TBI patients with a higher blood alcohol content at injury were more likely to have substantial medical debts (odds ratio=2.70; 95% confidence interval, 1.04-7.00).

Conclusions

Medical debt plays an important role in some bankruptcies after TBI or SCI. We discuss policy options for reducing financial distress after serious injury.