Outcome After Injury—A Systematic Literature Search of Studies Using the EQ-5D

Association between Patient-Reported Health Status and Physical Activity Six Months after Upper and Lower Limb Fractures in Working-Aged Adults

INTRODUCTION

Physical activity limitations are common following upper and lower limb fractures in adults of working age. There is a lack of research investigating the factors associated with these limitations, such as pain, mental health problems, and mobility impairments.

OBJECTIVES

To report health status (EQ-5D) 6 months after upper and lower limb fracture in adults of working age (ages 18-69 years), and to determine the association between sedentary behavior (sitting time) and physical activity (steps, moderate-intensity physical activity [MPA]) 2 weeks and 6 months post-fracture with health status 6 months post-fracture.

DESIGN

Prospective cohort study.

SETTING

Major (level I) trauma center.

PARTICIPANTS

Sixty-three adults 18-69 years of age with upper or lower limb fractures who were recruited consecutively.

MAIN OUTCOME MEASURES

Participants wore ActiGraph and activPAL accelerometers for 10 days, 2 weeks and 6 months post-fracture. At 6 months, participants completed the EQ-5D. We used linear mixed-effects multivariable regression analyses to explore associations between EQ-5D domains and sitting time, steps, or physical activity.

RESULTS

Participants with mobility problems (compared to participants without) were highly sedentary at 2 weeks (β = 0.86, P = .04), took fewer steps/d (Ratio of Geometric Means [RGM] = 0.62, P = .02) and engaged in less MPA (RGM = 0.32, P = .01). In addition, they engaged in less MPA at 6 months (RGM = 0.52, P = .02). Participants with self-care problems (compared with participants without) took fewer steps per day at 6 months (RGM = 0.78, P = .04), and engaged in less MPA at 2 weeks (RGM = 0.31, P = .01) and 6 months (RGM = 0.48, P = .02).

CONCLUSIONS

Adults with mobility and self-care problems 6 months post-fracture engaged in high levels of sedentary behavior and low levels of physical activity. These findings can guide clinicians on health problems to target in order to maximize recovery of physical activity following fracture.

What can trauma patients' experiences and perspectives tell us about the perceived quality of trauma care? a qualitative study set within the UK National Health Service

The global drive for improvements in the efficiency and quality of healthcare has led to the development of frameworks to assist in defining and measuring 'good quality care'. However, such frameworks lack a systematic or meaningful definition of what 'good quality care' means from the patients' perspective. The present research provides an in-depth analysis of patients' experiences in a hospital setting from a quality of care perspective. Forty-five adults (aged 16-70) hospitalised in one of four UK NHS trusts following an unintentional injury were interviewed about their experiences of care. The findings show variability in perceived quality of care within the same hospital episode which cannot be meaningfully captured by existing frameworks. The context of trauma care (e.g. distressing nature of injury, patient vulnerability, expectations of hospitalisation and participants' interaction with different service providers) defined the care experience and the value of being 'cared for'. Participants identified some aspects of good and care which related to holistic, person-centred and personalised care beyond the medical needs. Participants discussed the value of being understood, staff thinking of their needs beyond hospitalisation, staff trying 'their best' despite constrains of current care, having their emotional needs recognised and addressed and staff competence. Patients reported also poor quality of care and 'not being cared for' by specific staff groups which they expected to fulfil this role, rushed and unsympathetic care, lack of recognition for emotional impact of injury mapped onto existing quality frameworks e.g. safety, equity, accessibility and patient-centeredness as well as quality of interaction with providers, empathetic care which extended beyond medical needs, coordination of care, and the positivity of care delivery as important dimensions of quality care with implications for their recovery. The findings have implications for quality frameworks and theoretical definitions of quality of care; they demonstrate the importance of patient experience in addition to clinical effectiveness and safety as an essential dimension of quality care. In terms of practice, the findings support the need to incorporate knowledge and training of injured adults' psychological needs, and the value of interaction with professionals as a patient defined dimension of the quality of care.

The Association between Mobile Phone Use and Severe Traffic Injuries: A Case-Control Study from Saudi Arabia

Road traffic injury (RTI) is the third leading cause of death in Saudi Arabia. Using a mobile phone when driving is associated with distracted driving, which may result in RTIs. Because of limited empirical data, we investigated the association between mobile phone use and RTI in injured patients and community controls in Riyadh. Cases were patients admitted to King Abdulaziz Medical City (KAMC) between October 2016 and March 2018 due to RTIs. During admission, mobile phone use at the time of the accident was investigated. The controls were drivers observed at various locations citywide. A logistic regression model was constructed to estimate the association between mobile phone use while driving and sustaining RTIs. We included 318 cases and 1700 controls. For the cases, using a mobile phone was associated with higher severity and prevalence of disability. In addition, using a mobile phone while driving is associated with 44% higher odds of incurring a severe RTI (p = 0.04). Mobile phone use while driving is prevalent in Riyadh and pose a significant threat of disability. In addition, the low prevalence of seatbelt use is alarming and requires significant improvement. Prevention programs may use these findings to educate the public and policymakers and to advocate for increased visibility of enforcement to reduce RTIs and improve population health.

The Short Musculoskeletal Function Assessment: a study of the reliability, construct validity and responsiveness in patients sustaining trauma

OBJECTIVE

To assess test-retest reliability, construct validity and responsiveness of the Dutch Short Musculoskeletal Function Assessment (SMFA-NL) in patients who sustained acute physical trauma.

DESIGN

A longitudinal cohort study.

SETTING

A level 1 trauma center in The Netherlands.

SUBJECTS

Patients who required hospital admission after sustaining an acute physical trauma.

INTERVENTION

Patients completed the SMFA-NL at six weeks, eight weeks and six months post-injury.

MAIN MEASURE

The measures used were The Dutch Short Musculoskeletal Function Assessment. Test-retest reliability (between six and eight weeks post-injury) using intraclass correlation coefficients, the smallest detectable change and Bland and Altman plots. Construct validity (six weeks post-injury) and responsiveness (between six weeks and six months post-injury) were evaluated using the hypothesis testing method.

RESULTS

A total of 248 patients (mean age: 46.5, SD: 13.4) participated, 145 patients completed the retest questionnaires (eight weeks) and 160 patients completed the responsiveness questionnaires (six months). The intraclass correlation coefficients indicated good to excellent reliability on all subscales (0.80 to 0.98). The smallest detectable change was 17.4 for the Upper Extremity Dysfunction subscale, 11.0 for the Lower Extremity Dysfunction subscales, 13.9 for the Problems with Daily Activities subscale and 16.5 for the Mental and Emotional Problems subscale. At group level, the smallest detectable change ranged from 1.48 to 1.96. A total of 86% of the construct validity hypotheses and 79% of the responsiveness hypotheses were confirmed.

CONCLUSION

This study showed that the SMFA-NL has good to excellent reliability, sufficient construct validity and is able to detect change in physical function over time.

Impact of comorbidity on health outcome after a transport-related injury

INTRODUCTION

Understanding the impact of comorbidity on health outcomes is important given that comorbidities can affect survival, morbidity, service delivery costs and healthcare utilisation. However, little is known about the types of comorbidities affecting specific health outcomes after minor to moderate road trauma.

METHODS

This study involved 1574 participants who claimed injury compensation following transport-related injury. Cross sectional data were collected. Health outcomes were assessed using the EQ-5D-3L specific domains and summary score. Twelve self-reported pre-existing chronic conditions were assessed using a multivariate logistic regression, adjusting for demographic and injury characteristics.

RESULTS

Out of 1574 participants, only 17 (1%) participants reported no pre-existing comorbidities, 72% reported one, 13% reported two and 14% reported three or more comorbidities. Hypertension (15%), depression (14%) and anxiety (14%) were the most commonly reported comorbidities, followed by arthritis (13%), chronic pain (11%) and asthma (11%). Participants with a history of arthritis (adjusted odds ratio [AOR] 1.90, 95% CI 1.24 to 2.91); chronic back pain (AOR 1.59, 95% CI, 1.04 to 2.43); other chronic pain (AOR 2.73, 95% CI 1.42 to 4.24); depression (AOR 2.55, 95% CI 1.60 to 4.05) and anxiety (AOR 2.08, 95% CI 1.32 to 3.26) were at increased risk of poorer health outcomes, after controlling for age, gender, type of injury and time since injury.

CONCLUSION

This study found that comorbidities such as arthritis, chronic back pain, other chronic pain, depression and anxiety significantly increase the odds of poorer health postinjury, regardless of the time since injury. Regular screening of comorbid conditions may help identify people likely to have poorer outcomes, thereby enabling the implementation of interventions to optimise health despite the presence of comorbidities.

Using Patient-Reported Outcomes to Predict Revision Arthroplasty Following Femoral Neck Fracture: Enhancing the Value of Clinical Registries through Data Linkage

The aim of this study was to determine the association between patient-reported outcome measures (PROMs) six months following femoral neck fracture after a low fall and future arthroplasty, and the factors associated with this. Six-month post-fracture PROMs were collected from the Victorian Orthopaedic Trauma Outcomes Registry (VOTOR) for patients aged >55 years who were admitted for a femoral neck fracture after a low fall between March 2007 and June 2015. These cases were linked with those registered by Australian Orthopaedic Association National Joint Replacement Registry (AOANJRR) up to October 2016. Multivariable analysis was performed using a Cox proportional hazards model to determine factors associated with future arthroplasty, including six-month PROMs. Of the 7077 hip fracture patients registered by VOTOR during the study period, 2325 met the inclusion criteria. Internal fixation being used for the initial hip fracture surgery, being younger and having no pre-injury disability were all independently associated with future revision or conversion to arthroplasty. Out of all PROMs, reporting pain and discomfort six months post-fracture was associated with a 9.5-fold increase in the risk of future arthroplasty (95% CI: 3.81, 23.67). The value of clinical registries can be enhanced via data linkage, in this case by using PROMs to predict arthroplasty following femoral neck fracture.

Impact of further injury on participation in work and activities among those previously injured: results from a New Zealand prospective cohort study

PURPOSE

To examine participation in paid work, unpaid work and activities 12 months after a sentinel (initial) injury, and to determine the impact of sustaining a subsequent injury (SI) on these participation outcomes.

METHODS

Participants were recruited to the Prospective Outcomes of Injury Study following an Accident Compensation Corporation (ACC; New Zealand's no-fault injury insurer) entitlement claim injury. Outcomes were whether participants reported reduced paid work hours, reduced unpaid work (e.g. housework, gardening) or reduced activities (e.g. socialising, leisure pursuits) at 12 months compared to before the sentinel injury event. SIs were ACC claims of any type. Using multivariable models, characteristics of SIs were examined as potential predictors of reduced participation.

RESULTS

At 12 months, 30% had reduced paid work hours, 12% had reduced unpaid work and 25% had reduced activities. Sustaining a SI predicted reduced paid work (RR 1.5; 95% CI 1.2, 1.8), but not unpaid work or activities. Participants who had sustained intracranial SIs were at highest risk of reduced paid work (RR 3.2, 95% CI 1.9, 5.2). Those sustaining SIs at work were less likely to have reduced paid work (RR 0.7; 95% CI 0.6, 1.0) than those with only non-work SIs. Participants sustaining assaultive SIs had higher risk of reduced unpaid work (RR 2.6, 95% CI 1.0, 6.8).

CONCLUSIONS

Reduced participation is prevalent after a substantive sentinel injury, and sustaining a SI impacts on return to paid work. Identification of SI characteristics that put people at high risk of participation restriction may be useful for focusing on rehabilitative attention.

What is the evidence for the performance of generic preference-based measures? A systematic overview of reviews

OBJECTIVE

To assess the evidence on the validity and responsiveness of five commonly used preference-based instruments, the EQ-5D, SF-6D, HUI3, 15D and AQoL, by undertaking a review of reviews.

METHODS

Four databases were investigated using a strategy refined through a highly sensitive filter for systematic reviews. References were screened and a search for grey literature was performed. Identified citations were scrutinized against pre-defined eligibility criteria and data were extracted using a customized extraction template. Evidence on known group validity, convergent validity and responsiveness was extracted and reviewed by narrative synthesis. Quality of the included reviews was assessed using a modified version of the AMSTAR checklist.

RESULTS

Thirty reviews were included, sixteen of which were of excellent or good quality. The body of evidence, covering more than 180 studies, was heavily skewed towards EQ-5D, with significantly fewer studies investigating HUI3 and SF-6D, and very few the 15D and AQoL. There was also lack of head-to-head comparisons between GPBMs and the tests reported by the reviews were often weak. Where there was evidence, EQ-5D, SF-6D, HUI3, 15D and AQoL seemed generally valid and responsive instruments, although not for all conditions. Evidence was not consistently reported across reviews.

CONCLUSIONS

Although generally valid, EQ-5D, SF-6D and HUI3 suffer from some problems and perform inconsistently in some populations. The lack of head-to-head comparisons and the poor reporting impedes the comparative assessment of the performance of GPBMs. This highlights the need for large comparative studies designed to test instruments' performance.

The role of pre-existing comorbidity on the rate of recovery following injury: A longitudinal cohort study

Understanding the role of comorbidity in recovery following injury is an important challenge given the increasing prevalence of multimorbidity (2 or more comorbidities) in many countries. The Prospective Outcomes of Injury Study recruited 2856 injured 18–64 year olds that had registered for entitlements with New Zealand’s universal no-fault injury insurer. Recovery, or lack of, in this longitudinal cohort was measured using the World Health Organization Disability Assessment Schedule at 3, 12 and 24 months post-injury. Twenty-one pre-existing chronic conditions were used to identify comorbidity. To investigate whether rates of recovery differed by pre-injury comorbidity, the interaction between time and comorbidity was modelled using Generalised Estimating Equations. Of 1,862 participants with complete data, the distribution reporting none, one comorbidity, or multimorbidity pre-injury was 51%, 27%, and 21% respectively. Longitudinal analysis estimated no difference (log odds per year 0.05, 95% Confidence Interval -0.17 to 0.27) between the rate of change of disability for those with one pre-injury comorbidity compared to those with none. Those with pre-injury multimorbidity had significantly slower reduction in disability over time than those with no pre-injury comorbidity (log odds per year 0.27, 95% Confidence Interval 0.05 to 0.48). In a working age cohort, the rate of recovery in the 24 months following injury was similar for those with none or one pre-existing comorbidity and significantly slower for those with multimorbidity. It is important that further research explores mechanisms driving this, and that researchers and health providers identify and implement better supports for injured people with multimorbidity.

Plating for midshaft clavicular fractures: The impact on quality of life and functional outcome

INTRODUCTION

Several studies report on functional outcome after operative treatment for midshaft clavicular fractures. According to the published data not much is known about the quality of life after operative treatment. The purpose of this study is to investigate long term patient reported quality of life (QoL) and functional outcome after plating for midshaft clavicular fractures.

METHODS

Patients between 16 and 65 years of age, with a midshaft clavicular fracture which were treated with plate fixation between 2006 and 2014, were included. Information was extracted from hospital records and all patients were asked to participate in an online survey. Primary outcome was QoL (SF-36 and EQ-5D-5L). Secondary outcomes were complications, reoperation rate, patient- and cosmetic satisfaction, pain, and functional outcome (DASH).

RESULTS

In a retrospective cohort design, 164 patients were included, 101 completed the online survey. Patients reported a good QoL and functional outcome. The mean physical- and mental SF36 score were 53.9±7.3 and 52.3±9.9 (0-100), the EQ-5D-5L score was 0.88±0.17 (-0.59 to 1.0) and the average DASH was 8.45±14.0 (0-100). Furthermore, there was a strong correlation between the functional outcome and QoL (p<0,001). Seventeen patients developed at least one complication (10%) and seventy-seven patients got a reoperation, with isolated implant removal as the leading cause of reoperation (80,5%).

CONCLUSION

Patients which received operative treatment for a midshaft clavicle fracture have an excellent QoL, and a good functional outcome. Furthermore, there is a strong relationship between functional outcome and the QoL.

Associations between compensable injury, perceived fault and pain and disability 1 year after injury: a registry-based Australian cohort study

OBJECTIVES

Compensable injury increases the likelihood of having persistent pain after injury. Three-quarters of patients report chronic pain after traumatic injury, which is disabling for about one-third of patients. It is important to understand why these patients report disabling pain, in order to develop targeted preventative interventions. This study examined the experience of pain and disability, and investigated their sequential interrelationships with, catastrophising, kinesiophobia and self-efficacy 1 year after compensable and non-compensable injury.

DESIGN

Observational registry-based cohort study.

SETTING

Metropolitan Trauma Service in Melbourne, Victoria, Australia.

PARTICIPANTS

Participants were recruited from the Victorian State Trauma Registry and Victorian Orthopaedic Trauma Outcomes Registry. 732 patients were referred to the study, 82 could not be contacted or were ineligible, 217 declined and 433 participated (66.6% response rate).

OUTCOME MEASURES

The Brief Pain Inventory, Glasgow Outcome Scale, EuroQol Five Dimensions questionnaire, Pain Catastrophising Scale, Pain Self-Efficacy Questionnaire, Injustice Experience Questionnaire and the Tampa Scale of Kinesiophobia.

METHODS

Direct and indirect relationships (via psychological appraisals of pain/injury) between baseline characteristics (compensation, fault and injury characteristics) and pain severity, pain interference, health status and disability were examined with ordinal, linear and logistic regression, and mediation analyses.

RESULTS

Injury severity, compensable injury and external fault attribution were consistently associated with moderate-to-severe pain, higher pain interference, poorer health status and moderate-to-severe disability. The association between compensable injury, or external fault attribution, and disability and health outcomes was mediated via pain self-efficacy and perceived injustice.

CONCLUSIONS

Given that the associations between compensable injury, pain and disability was attributable to lower self-efficacy and higher perceptions of injustice, interventions targeting the psychological impacts of pain and injury may be especially necessary to improve long-term injury outcomes.

Clinical experiences in the use of a gentamicin-coated titanium nail in tibia fractures

Despite the improvement of surgical techniques surgical site infections (SSIs) still remain clinically challenging in high risk patients undergoing osteosynthesis for tibia fractures. The use of an antibiotic coated implant might reduce the adhesion of bacteria on the implant surface and could therefore reduce the rate of implant-related infection or osteomyelitis. A gentamicin-coated tibia nail was evaluated in a prospective study. Four centers enrolled 100 patients (99 treated) with fresh open or closed tibia fractures, or for non-union revision surgery and followed them for 18 months. Data collected included infection events, radiographs, SF-12, EQ-5D, Iowa Ankle score, and the WOMAC questionnaire. Sixty-eight of the 99 treated patients suffered from a fresh fracture, while in 31 patients, the intramedullary nail was implanted for revision purposes, including non-unions due to infection. Fifteen (22%) of the fresh fractures were GA Type III. The follow-up rate was 87% and 82% at 12 months and 18 months, respectively. Deep surgical site infections occurred in 3 fresh fractures and two in revision surgeries. We did not observe any local or systemic toxic effects related to gentamicin during this study. The use of the antibiotic coated nail is an option in patients with a high infection risk, like open factures or infected non unions, in the prevention of the onset of an implant-related infection or osteomyelitis.

The impact of psychological factors on recovery from injury: a multicentre cohort study

PURPOSE

Unintentional injuries have a significant long-term health impact in working age adults. Depression, anxiety and post-traumatic stress disorder are common post-injury, but their impact on self-reported recovery has not been investigated in general injury populations. This study investigated the role of psychological predictors 1 month post-injury in subsequent self-reported recovery from injury in working-aged adults.

METHODS

A multicentre cohort study was conducted of 668 unintentionally injured adults admitted to five UK hospitals followed up at 1, 2, 4 and 12 months post-injury. Logistic regression explored relationships between psychological morbidity 1 month post-injury and self-reported recovery 12 months post-injury, adjusting for health, demographic, injury and socio-legal factors. Multiple imputations were used to impute missing values.

RESULTS

A total of 668 adults participated at baseline, 77% followed up at 1 month and 63% at 12 months, of whom 383 (57%) were included in the main analysis. Multiple imputation analysis included all 668 participants. Increasing levels of depression scores and increasing levels of pain at 1 month and an increasing number of nights in hospital were associated with significantly reduced odds of recovery at 12 months, adjusting for age, sex, centre, employment and deprivation. The findings were similar in the multiple imputation analysis, except that pain had borderline statistical significance.

CONCLUSIONS

Depression 1 month post-injury is an important predictor of recovery, but other factors, especially pain and nights spent in hospital, also predict recovery. Identifying and managing depression and providing adequate pain control are essential in clinical care post-injury.

Long-term health status and trajectories of seriously injured patients: A population-based longitudinal study

BACKGROUND

Improved understanding of the quality of survival of patients is crucial in evaluating trauma care, understanding recovery patterns and timeframes, and informing healthcare, social, and disability service provision. We aimed to describe the longer-term health status of seriously injured patients, identify predictors of outcome, and establish recovery trajectories by population characteristics.

METHODS AND FINDINGS

A population-based, prospective cohort study using the Victorian State Trauma Registry (VSTR) was undertaken. We followed up 2,757 adult patients, injured between July 2011 and June 2012, through deaths registry linkage and telephone interview at 6-, 12-, 24-, and 36-months postinjury. The 3-level EuroQol 5 dimensions questionnaire (EQ-5D-3L) was collected, and mixed-effects regression modelling was used to identify predictors of outcome, and recovery trajectories, for the EQ-5D-3L items and summary score. Mean (SD) age of participants was 50.8 (21.6) years, and 72% were male. Twelve percent (n = 333) died during their hospital stay, 8.1% (n = 222) of patients died postdischarge, and 155 (7.0%) were known to have survived to 36-months postinjury but were lost to follow-up at all time points. The prevalence of reporting problems at 36-months postinjury was 37% for mobility, 21% for self-care, 47% for usual activities, 50% for pain/discomfort, and 41% for anxiety/depression. Continued improvement to 36-months postinjury was only present for the usual activities item; the adjusted relative risk (ARR) of reporting problems decreased from 6 to 12 (ARR 0.87, 95% CI: 0.83-0.90), 12 to 24 (ARR 0.94, 95% CI: 0.90-0.98), and 24 to 36 months (ARR 0.95, 95% CI: 0.95-0.99). The risk of reporting problems with pain or discomfort increased from 24- to 36-months postinjury (ARR 1.06, 95% CI: 1.01, 1.12). While loss to follow-up was low, there was responder bias with patients injured in intentional events, younger, and less seriously injured patients less likely to participate; therefore, these patient subgroups were underrepresented in the study findings.

CONCLUSIONS

The prevalence of ongoing problems at 3-years postinjury is high, confirming that serious injury is frequently a chronic disorder. These findings have implications for trauma system design. Investment in interventions to reduce the longer-term impact of injuries is needed, and greater investment in primary prevention is needed.

EQ-5D in Central and Eastern Europe: 2000-2015

OBJECTIVE

Cost per quality-adjusted life year data are required for reimbursement decisions in many Central and Eastern European (CEE) countries. EQ-5D is by far the most commonly used instrument to generate utility values in CEE. This study aims to systematically review the literature on EQ-5D from eight CEE countries.

METHODS

An electronic database search was performed up to 1 July 2015 to identify original EQ-5D studies from the countries of interest. We analysed the use of EQ-5D with respect to clinical areas, methodological rigor, population norms and value sets.

RESULTS

We identified 143 studies providing 152 country-specific results with a total sample size of 81,619: Austria (n = 11), Bulgaria (n = 6), Czech Republic (n = 18), Hungary (n = 47), Poland (n = 51), Romania (n = 2), Slovakia (n = 3) and Slovenia (n = 14). Cardiovascular (21 %), neurologic (17 %), musculoskeletal (15 %) and endocrine, nutritional and metabolic diseases (13 %) were the most frequently studied clinical areas. Overall, 112 (78 %) of the studies reported EQ VAS results and 86 (60 %) EQ-5D index scores, of which 27 (31 %) did not specify the applied tariff. Hungary, Poland and Slovenia have population norms. Poland and Slovenia also have a national value set.

CONCLUSIONS

Increasing use of EQ-5D is observed throughout CEE. The spread of health technology assessment activities in countries seems to be reflected in the number of EQ-5D studies. However, improvement in informed use and methodological quality of reporting is needed. In jurisdictions where no national value set is available, in order to ensure comparability we recommend to apply the most frequently used UK tariff. Regional collaboration between CEE countries should be strengthened.

Economic loss due to traumatic injury in Uganda: The patient's perspective

INTRODUCTION

Traumatic injury is a growing public health concern globally, and is a major cause of death and disability worldwide. The purpose of this study was to quantify the socioeconomic impact of lower extremity fractures in Uganda.

METHODS

All adult patients presenting acutely to Uganda's national referral hospital with a single long bone lower extremity fracture in October 2013 were recruited. Consenting patients were surveyed at admission and again at six-months and 12-months post-injury. The primary outcome was the cumulative 12-month post-injury loss in income. Secondary outcome measures included the change in health-related quality of life (HRQoL) and the injury's effect on school attendance for the patients' dependents.

RESULTS

Seventy-four patients were recruited during the study period. Sixty-four (86%) of the patients were available for 12-months of follow-up. Compared to pre-injury earnings, patients lost 88.4% ($1822 USD) of their annual income in the 12-months following their injury. To offset this loss in income, patients borrowed an average of 28% of their pre-injury annual income. Using the EuroQol-5D instrument, the mean HRQoL decreased from 0.91 prior to the injury to 0.39 (p<0.0001) at 12-months post-injury. Ninety-three percent of school-aged dependents missed at least one month of school during their guardian's recovery and only 61% had returned to school by 12-months post-injury.

CONCLUSION

This study demonstrates that lower extremity fractures in Uganda had a profound impact on the socioeconomic status of the individuals in our sample population, as well as the socioeconomic health of the family unit.

Long-term outcomes of individuals injured in motor vehicle crashes: A population-based study

BACKGROUND

Despite decline in U.S. traffic fatalities, non-fatal injuries remain a main cause of reduced self-reported health. The authors used a nationally representative survey to examine the long-term (≥1 year) implications of traffic injuries on self-care, depression, mobility, pain and activity domains of a widely used measure assessing Health-Related Quality of Life (HRQOL).

METHODS

30,576 participants from panels (2000-2002) of the Medical Expenditure Panel Survey (MEPS) were followed for about two years. The associations between reporting a traffic injury in the first follow-up year and the five domains of the Euroqol Health index (EQ-5D) were assessed using mixed logistic models with outcome severe/moderate problem in each domain. Models adjustment variables included age, gender, education, income, diabetes, asthma, smoking and insurance status.

RESULTS

590 participants reported traffic injuries. In the first follow-up analysis, having an injury was associated with deficits in all domains of the EQ-5D. With the exception of self-care, similar findings were reported in the second follow-up (≥1 year) after injuries with strongest associations between traffic injuries and both mobility and activity (both OR=2.9, P<0.01).

CONCLUSIONS

Traffic injuries are significantly associated with long-term reduced HRQOL. Injured individuals may benefit from early intervention programs to prevent the development of secondary complications and reduced HRQOL.

Functional status following injury: what recovery pathways do people follow?

OBJECTIVES

Functional status can be affected for considerable time after injury. Individual's functional status trajectories, or pathways, following injury may provide insights into achieving, or not achieving, optimal functional status. This study aims to (1) investigate functional status trajectories of injured individuals over two years by multiple dimensions and, (2) determine whether there are differences in functional status trajectories between those hospitalised and non-hospitalised.

METHODS

Data from the Prospective Outcomes of Injury Study, a longitudinal cohort (n=2856) of injured New Zealanders, was used. Functional status was assessed using the EQ-5D (plus a cognitive dimension) at 3, 12 and 24 months post injury. For each dimension (mobility, self-care, usual activities, pain/discomfort anxiety/depression and cognition), individual-level trajectories were created based on whether participants had attained (or exceeded) their pre-injury functional status at each time-point.

RESULTS

Participants had varied pathways to attaining their pre-injury functional status which was not revealed by cross-sectional group-level data. When all dimensions were considered together, 24% of participants attained their pre-injury functional status but did not maintain it at a subsequent phase. By EQ-5D dimension, this varied from 5% (self-care) to 22% (pain/discomfort). Twenty-six percent of non-hospitalised participants attained, but did not maintain, their pre-injury status compared to 18% of those hospitalised.

CONCLUSIONS

Cross-sectional group-level prevalence does not adequately depict the underlying pathways experienced by individual participants. Our analyses indicate the importance of following up all study participants in longitudinal studies, including those reporting to have attained 'recovery' and of not under-estimating the impact of non-hospitalised injuries.

Level of agreement between patient-reported EQ-5D responses and EQ-5D responses mapped from the SF-12 in an injury population

BACKGROUND

Comparing health-related quality of life (HRQL) outcomes between studies is difficult due to the wide variety of instruments used. Comparing study outcomes and facilitating pooled data analyses requires valid "crosswalks" between HRQL instruments. Algorithms exist to map 12-item Short Form Health Survey (SF-12) responses to EQ-5D item responses and preference weights, but none have been validated in populations where disability is prevalent, such as injury.

METHODS

Data were extracted from the Validating and Improving injury Burden Estimates Study (Injury-VIBES) for 10,166 adult, hospitalized trauma patients, with both the three-level EQ-5D (EQ-5D-3L) and SF-12 data responses at six and 12-months postinjury. Agreement between actual (patient-reported) and estimated (mapped from SF-12) EQ-5D-3L item responses and preference weights was assessed using Kappa, Prevalence-Adjusted Bias-Adjusted Kappa statistics and Bland-Altman plots.

RESULTS

Moderate agreement was observed for usual activities, pain/discomfort, and anxiety/depression. Agreement was substantial for mobility and self-care items. The mean differences in preference weights were -0.024 and -0.012 at six and 12 months (p < 0.001), respectively. The Bland-Altman plot limits of agreement were large compared to the range of valid preference weight values (-0.56 to 1.00). Estimated EQ-5D-3L responses under-reported disability for all items except pain/discomfort.

CONCLUSIONS

Caution should be taken when using EQ-5D-3L responses mapped from the SF-12 to describe patient outcomes or when undertaking economic evaluation, due to the underestimation of disability associated with mapped values. The findings from this study could be used to adjust expected EQ-5D-3L preference weights when estimated from SF-12 item responses when combining data from studies that use either instrument.

Feasibility of screening for preinjury frailty in hospitalized injured older adults

BACKGROUND

Frailty assessment of injured older adults (IOAs) is important for clinical management; however, the feasibility of screening for preinjury frailty has not been established in a Level I trauma center. The aims of our study were to assess enrollment rates of IOAs and their surrogates as well as completion rates of selected brief frailty screening instruments.

METHODS

We conducted a prospective cohort study on patients, age 65 years and older with a primary injury diagnosis. Patients and/or surrogates were interviewed within 48 hours of admission using the Vulnerable Elders Survey (VES-13), Barthel Index (BI), and the Life Space Assessment (LSA). Data analysis included frequency distributions, χ statistics, Mann-Whitney and Kruskal-Wallis tests, and general linear modeling (analysis of variance).

RESULTS

Of 395 admitted patients, 188 were enrolled with subsequent surrogate screening. Corresponding patient interviews were conducted for 77 patients (41%). Screening time was less than 5 minutes for each instrument, and item completion was 100%. Forty-two enrolled patients (22%) had nurse-reported delirium, and 69 (37%) patients either did not feel like answering questions or were unable to be interviewed secondary to their medical condition. The median score of surrogate responses for the VES-13 was 3.5 (interquartile range, 2-7), with 64% of the sample having a score of 3 or greater, indicating vulnerability or frailty. Median scores for the BI (19.0) and LSA (56.0) indicated high numbers with limitations in activities of daily living and limitations in mobilization.

CONCLUSION

Screening for preinjury frailty in IOAs is feasible yet highly dependent on the presence of a surrogate respondent. A clinically significant percentage of patients have functional deficits consistent with frailty, dependence in activities of daily living, and limitations in mobilization. Implementation of validated brief screening instruments to identify frailty in clinical settings is warranted for targeting timely, efficient, and effective care interventions.

LEVEL OF EVIDENCE

Epidemiologic study, level II.

Association between the number of injuries sustained and 12-month disability outcomes: evidence from the injury-VIBES study

Objective

To determine associations between the number of injuries sustained and three measures of disability 12-months post-injury for hospitalised patients.

Methods

Data from 27,840 adult (18+ years) participants, hospitalised for injury, were extracted for analysis from the Validating and Improving injury Burden Estimates (Injury-VIBES) Study. Modified Poisson and linear regression analyses were used to estimate relative risks and mean differences, respectively, for a range of outcomes (Glasgow Outcome Scale-Extended, GOS-E; EQ-5D and 12-item Short Form health survey physical and mental component summary scores, PCS-12 and MCS-12) according to the number of injuries sustained, adjusted for age, sex and contributing study.

Findings

More than half (54%) of patients had an injury to more than one ICD-10 body region and 62% had sustained more than one Global Burden of Disease injury type. The adjusted relative risk of a poor functional recovery (GOS-E<7) and of reporting problems on each of the items of the EQ-5D increased by 5–10% for each additional injury type, or body region, injured. Adjusted mean PCS-12 and MCS-12 scores worsened with each additional injury type, or body region, injured by 1.3–1.5 points and 0.5 points, respectively.

Conclusions

Consistent and strong relationships exist between the number of injury types and body regions injured and 12-month functional and health status outcomes. Existing composite measures of anatomical injury severity such as the NISS or ISS, which use up to three diagnoses only, may be insufficient for characterising or accounting for multiple injuries in disability studies. Future studies should consider the impact of multiple injuries to avoid under-estimation of injury burden.

A comparison of injured patient and general population valuations of EQ-5D health states for New Zealand

Background

A near-universal finding internationally is that patient valuations of their own health, represented using the EQ-5D system, are mostly higher than general population valuations of the same EQ-5D states. This paper investigates whether this result also applies to New Zealand. Despite the EQ-5D’s widespread use for cost-utility analysis in New Zealand, in particular by the Pharmaceutical Management Agency (PHARMAC) for health technology assessments, no previous studies comparing patient and general population valuations have included data for New Zealand.

Methods

Valuations of 13 EQ-5D health states from a 1999 survey of the New Zealand general population (n = 396) are compared with injured New Zealanders’ (n = 2099) valuations of their own health (also represented on the EQ-5D) collected between 2007 and 2009 in the Prospective Outcomes of Injury Study. Which EQ-5D dimensions are most strongly associated with the population valuations is also investigated.

Results

Injured population valuations are higher (better-rated health) than general population valuations for all 13 health states considered except 11111 (no problems on any EQ-5D dimension). This difference, which tends to be larger the ‘worse’ the state, is statistically significant at the 10% level for most of the states. State 11111 is rated significantly lower by the injured population than the general population. Pain/discomfort is more important in determining valuations for the general population than for injured people, whereas problems with self-care are more important for the injured population; anxiety/depression is important in both general and injured population valuations.

Conclusions

Consistent with the international literature, injured people’s valuations of their own health are mostly higher than the general population’s hypothetical valuations of the same EQ-5D states for New Zealand. These differences are practically significant in the sense that they are larger than minimally important differences for the EQ-5D from the literature, and they appear capable of significantly affecting CUA results.

Validity and reliability of the EQ-5D-3L™ among a paediatric injury population

Background

Injuries are a leading cause of death and disabilities for children and youth globally. Measuring the health related quality of life of injured children and youth can help gain understanding of the impact of injuries on this population; however, psychometric evaluation of health related quality of life tools among this population is lacking. The purpose of this study was to determine the construct validity of the EQ-5D-3L™ for use among a population of injured young people and to examine the reliability of different modes of administration including paper and pencil, online and telephone.

Methods

In total, 345 participants (aged 0 – 16) were recruited from a paediatric hospital in a large urban centre in British Columbia, Canada. To capture a variety of injury types and severity, patients were recruited from in-patient units and the emergency department. Data were collected at the time of recruitment and at one month post injury.

Results

Repeated measures analysis (rANOVA) showed that EQ-5D-3L™ scores were different before and after injury and significant between group differences (Visual Analog Scale: F = 4.61, p = 0.011; Descriptive Scale: F = 29.58, p < 0.001), within group differences (Visual Analog Scale: F = 60.02, p < 0.001; Descriptive Scale: F = 92.37, p < 0.001), and interaction between variables (Visual Analog Scale: F = 10.89, p < 0.001; Descriptive Scale: F = 19.25, p < 0.001) were detected, indicating its suitability for assessment of post-injury health related quality of life. Bland-Altman plots confirmed that few differences existed between modes of administration.

Conclusion

The EQ-5D-3L™ is an appropriate instrument for collecting health related quality of life data among injured children and can be administered via paper-pencil, online or by telephone.

Level of agreement between patient and proxy responses to the EQ-5D health questionnaire 12 months after injury

BACKGROUND

Health-related quality of life represents a patient's experiences and expectations and should be collected from the patient. In trauma, collection of information from the patient can be challenging, particularly for subgroups where cognitive impairment is prevalent, increasing reliance on proxy reporting. This study assessed the agreement between patient and proxy reporting of health-related quality of life 12 months after injury.

METHODS

The Victorian State Trauma Registry and Victorian Orthopaedic Trauma Outcomes Registry collect EQ-5D data at 12 months after injury. Cases where data were collected from the patient and proxy were extracted. Agreement between patient and proxy responses was compared using kappa (K) coefficients for the individual EQ-5D items, and Bland-Altman plots and Wilcoxon signed-rank tests for the EQ-5D summary score and visual analog scale (VAS).

RESULTS

Agreement between patient and proxy respondents was substantial for the mobility (K = 0.61) and personal care items (K = 0.67) and moderate for the usual activities (K = 0.50), pain/discomfort (K = 0.42), and anxiety/depression items (K = 0.47). The mean difference between proxy and patient-reported scores for the VAS (0.74, 95% confidence interval: -2.73, 4.21) and the EQ-5D summary score (-0.02, 95% confidence interval: -0.07, 0.03) was small, but the limits of agreement were wide (-34.22 to 35.71 for VAS and -0.55 to 0.51 for summary score), suggesting no systematic bias.

CONCLUSIONS

Although proxy and patient responses for the EQ-5D VAS may differ, the differences show random variability rather than systematic bias. Group comparisons using proxy responses are unlikely to be biased, but proxy responses should be used with caution when assessing individual patient recovery.

Measuring the population burden of fatal and nonfatal injury

The value of measuring the population burden of fatal and nonfatal injury is well established. Population health metrics are important for assessing health status and health-related quality of life after injury and for integrating mortality, disability, and quality-of-life consequences. A frequently used population health metric is the disability-adjusted life-year. This metric was launched in 1996 in the original Global Burden of Disease and Injury study and has been widely adopted by countries and health development agencies alike to identify the relative magnitude of different health problems. Apart from its obvious advantages and wide adherence, a number of challenges are encountered when the disability-adjusted life-year is applied to injuries. Validation of disability-adjusted life-year estimates for injury has been largely absent. This paper provides an overview of methods and existing knowledge regarding the population burden of injury measurement. The review of studies that measured burden of injury shows that estimates of the population burden remain uncertain because of a weak epidemiologic foundation; limited information on incidence, outcomes, and duration of disability; and a range of methodological problems, including definition and selection of incident and fatal cases, choices in selection of assessment instruments and timings of use for nonfatal injury outcomes, and the underlying concepts of valuation of disability. Recommendations are given for methodological refinements to improve the validity and comparability of future burden of injury studies.

Measuring functional and quality of life outcomes following major head injury: common scales and checklists

Traumatic brain injury (TBI) is a major public health issue, which results in significant mortality and long term disability. The profound impact of TBI is not only felt by the individuals who suffer the injury but also their care-givers and society as a whole. Clinicians and researchers require reliable and valid measures of long term outcome not only to truly quantify the burden of TBI and the scale of functional impairment in survivors, but also to allow early appropriate allocation of rehabilitation supports. In addition, clinical trials which aim to improve outcomes in this devastating condition require high quality measures to accurately assess the impact of the interventions being studied. In this article, we review the properties of an ideal measure of outcome in the TBI population. Then, we describe the key components and performance of the measurement tools most commonly used to quantify outcome in clinical studies in TBI. These measurement tools include: the Glasgow Outcome Scale (GOS) and extended Glasgow Outcome Scale (GOSe); Disability Rating Scale (DRS); Functional Independence Measure (FIM); Functional Assessment Measure (FAM); Functional Status Examination (FSE) and the TBI-specific and generic quality of life measures used in TBI patients (SF-36 and SF-12, WHOQOL-BREF, SIP, EQ-5D, EBIQ, and QOLIBRI).

Common generic measures of health related quality of life in injured patients

The measurement of health-related quality of life (HRQOL) through generic outcome instruments is important for comparisons of populations across disease states and interventions. The growing number of questionnaires available has made selection and interpretation more difficult. Profile instruments such as the SF-36 and Sickness Impact Profile provide insight into various domains of health with established population norms. Preference-based measures, including the EQ-5D, Health Utilities Index, SF-6D, and QWB-SA are used to generate utility scores, which can be used for cost-effectiveness analysis and therefore have particular relevance in health policy. Both types of generic measures have been used in clinical trials in injured populations to assess the relative impact of interventions on quality-of-life. Comparisons of internal consistency and test-retest reliability across measures reveal minimal differences between instruments, and reported values are acceptable for group comparisons but insufficient for individual clinical use. There is a dearth of studies evaluating the validity of these measures in the trauma population, but available data suggest most of the available instruments are acceptable. Populations that may require special consideration are patients with head, spinal cord, and upper-extremity injuries. Practical issues to consider in selecting a questionnaire include time for completion, which ranges from less than 2 min for the EQ-5D to 20-30 min for the Sickness Impact Profile. Selection of the appropriate measure ultimately depends largely on the population to be studied and whether utility-estimation is desired.

A systematic review of studies measuring health-related quality of life of general injury populations

Background

It is important to obtain greater insight into health-related quality of life (HRQL) of injury patients in order to document people's pathways to recovery and to quantify the impact of injury on population health over time. We performed a systematic review of studies measuring HRQL in general injury populations with a generic health state measure to summarize existing knowledge.

Methods

Injury studies (1995-2009) were identified with main inclusion criteria being the use of a generic health status measure and not being restricted to one specific type of injury. Articles were collated by study design, HRQL instrument used, timing of assessment(s), predictive variables and ability to detect change over time.

Results

Forty one studies met inclusion criteria, using 24 different generic HRQL and functional status measures (most used were SF-36, FIM, GOS, EQ-5D). The majority of the studies used a longitudinal design, but with different lengths and timings of follow-up (mostly 6, 12, and 24 months). Different generic health measures were able to discriminate between the health status of subgroups and picked up changes in health status between discharge and 12 month follow-up. Most studies reported high prevalences of health problems within the first year after injury. The twelve studies that reported HRQL utility scores showed considerable but incomplete recovery in the first year after discharge.

Conclusion

This systematic review demonstrates large variation in use of HRQL instruments, study populations, and assessment time points used in studies measuring HRQL of general injury populations. This variability impedes comparison of HRQL summary scores between studies and prevented formal meta-analyses aiming to quantify and improve precision of the impact of injury on population health over time.

[Health-related quality of life as an outcome criterion in traumatology]

Health-related quality of life is a multidimensional concept which describes relevant aspects of physical, emotional and social well-being as reported by patients. Numerous generic and disease-specific instruments for measuring health-related quality of life have been developed and in addition preference-based instruments are available for use in health economic evaluation. The SF-36 and EQ-5D questionnaires belong to the most frequently used generic measures of quality of life. The Trauma Outcome Profile (TOP) and the Quality of Life after Brain Injury (QOLIBRI) questionnaires are disease-specific measures designed to assess health-related quality of life after trauma. In the context of a brief description of these questionnaires several examples of their use in studies of patients after trauma are given. These examples show that successful conceptual and methodological developments in quality of life research provide a sound basis for patient-oriented outcome assessment after trauma.