Factors associated with health-related quality of life in chronic spinal cord injury

Variables Associated With Moderate to High Loneliness Among Individuals Living With Spinal Cord Injuries and Disorders

OBJECTIVE

To identify variables independently associated with moderate to high loneliness in individuals living with Spinal Cord Injuries or Disorders (SCI/D).

DESIGN

A cross-sectional, national survey of a random sample of community-dwelling Veterans with SCI/D in the United States. Survey methodology was used to collect data on demographic and injury characteristics, general health, chronic and SCI-secondary conditions, and loneliness.

SETTING

The VHA SCI/D System of Care including 25 regional SCI/D Centers (or Hubs).

PARTICIPANTS

Among 2466 Veterans with SCI/D, 592 completed surveys (24%). Most participants were men (91%), white (81%), not currently married (42%), had tetraplegia (33%), and on average injured for 18 years at the time of data collection (N=562).

INTERVENTIONS

Not applicable.

MAIN OUTCOME MEASURE

The dependent variable, loneliness, was collected using the UCLA-3 instrument. Loneliness was dichotomized into never/low loneliness and moderate/high loneliness (UCLA score ≥ 4).

RESULTS

Bivariate analyses assessed unadjusted associations in demographics, injury characteristics, chronic disease, and SCI-secondary conditions. Multivariable logistic regression was used to identify factors independently associated with moderate/high loneliness. Participants had a mean loneliness score of 5.04, SD=1.99. The point prevalence of moderate to high loneliness was 66%. Lower duration of injury, paraplegia, being unmarried, being in fair/poor general health, having dysfunctional sleep, and having a diagnosis of bowel dysfunction were each independently associated with greater odds of moderate/high loneliness.

CONCLUSIONS

Findings suggest that interventions to reduce/manage loneliness in the Veteran SCI/D population should focus on those who are more newly injured, have paraplegia, currently unmarried, have bowel problems, and experience dysfunctional sleep.

The Effect of Concomitant Spinal Cord Injury on Postoperative Health-related Quality of Life After Traumatic Subaxial Cervical Spine Injuries: A Nationwide Registry Study

OBJECTIVE

To evaluate the effect of spinal cord injury (SCI) on the health-related quality of life (HRQoL) in patients surgically treated for traumatic subaxial cervical spine injuries and investigate the agreement between objective neurologic outcomes and patient reported outcome measures (PROMs) in that context.

STUDY DESIGN

Observational study on prospectively collected multi-institutional registry data.

SETTING

Sweden.

PARTICIPANTS

Patients with traumatic subaxial spine injuries identified in the Swedish Spine Registry (Swespine) between 2006 and 2016.

INTERVENTIONS

Anterior, posterior, or anteroposterior cervical fixation surgery.

MAIN OUTCOMES

Patient-reported outcome measures (PROMs) consisting of EQ-5D-3Lindex and Neck Disability Index (NDI).

RESULTS

Among the 418 identified patients, 93 (22%) had a concomitant SCI. In this group, 30 (32%) had a complete SCI (Frankel A), and the remainder had incomplete SCIs (17%) Frankel B; 25 (27%) Frankel C; 22 (24%) Frankel D. PROMs significantly correlated with the Frankel grade (P<.001). However, post hoc analysis revealed that the differences between adjacent Frankel grades failed to reach both statistical and clinical significance. On univariable linear regression, the Frankel grade was a significant predictor of a specific index derived from the EQ-5D-3L questionnaire (EQ-5D-3Lindex) at 1, 2, and 5 years postoperatively as well as the NDI at 1 and 2 years postoperatively (P<.001). Changes of PROMs over time from 1, to 2, and 5 years postoperatively did not reach statistical significance, regardless of the presence and degree of SCI (P>.05).

CONCLUSION

Overall, the Frankel grade significantly correlated with the EQ-5D-3Lindex and NDI and was a significant predictor of PROMs at 1, 2, and 5 years. PROMs were stable beyond 1 year postoperatively regardless of the severity of the SCI.

Rib cage contributions to inspiratory capacity in patients with cervical spinal cord injury

Background

Cervical spinal cord injury (CSI) often leads to impaired respiratory function, affecting the overall well-being of patients. This study aimed to investigate the influence of rib cage motion on inspiratory capacity in CSI patients.

Methods

We conducted a study with 11 CSI patients, utilising respiratory inductance plethysmography (RIP). We measured ventilatory volume by spirometry concurrently with RIP. Participants were instructed to perform maximal inspiratory efforts. Inspiratory capacity (IC) was calculated from spirometry waveforms. We converted the respiratory waveforms of the chest and abdomen into inspiratory volume measured by a spirometer. The inspiratory volume measured by the chest sensor was defined as VRIP-rib cage (VRIP-rc), and the inspiratory volume measured by the abdominal sensor was defined as VRIP-abdomen (VRIP-ab). Subsequently, the relationships of IC with VRIP-rc and VRIPab were assessed.

Results

The mean IC was 1.828 ± 0.459 L, with the mean VRIP-rc at 1.343 ± 0.568 L and the mean VRIP-ab at 0.485 ± 0.427 L. A significant correlation was observed between IC and VRIP-rc (r = 0.67, p = 0.02), indicating that rib cage motion significantly influences IC in CSI patients.

Conclusion

This study highlights the importance of rib cage motion in assessing inspiratory capacity in patients with CSI.

Resilience as an Independent Predictor of Bowel Related Quality of Life After Spinal Cord Injury

Bowel dysfunction remains a prominent priority in the rehabilitation of patients with spinal cord injuries (SCIs). However, our understanding of the factors that influence bowel-related quality of life (QoL) in this population remains limited. This study aimed to investigate the potential role of resilience, defined as an individual's capacity to cope with and adapt to adversity, as a predictor of bowel-related QoL among the patients with SCI. A cohort of adult patients with SCI who received bowel and bladder care at an outpatient clinic within a large rehabilitation hospital was identified through a prospectively collected database. Resilience was measured using the Spinal Cord Injury-Quality of Life (SCI-QOL) Resilience Short Form, whereas bowel QoL was assessed using the Irritable Bowel Syndrome-Quality of Life (IBS-QoL) questionnaire. Univariate and multivariate regression analyses were employed to identify predictors of bowel-related QoL. The examined variables included age, gender, level and completeness of injury, time since injury, hand function, resilience, and the severity of bowel dysfunction as measured using the Neurogenic Bowel Dysfunction Score (NBDS). A total of 73 patients participated in this study, with a mean age of 44.01 ± 13.43 years and comprising mostly men (n = 57, 78%). The results revealed a significant correlation between resilience scores and the total score of IBS-QoL (ρ = -0.47, p < 0.0001). The multivariate analysis demonstrated that both resilience and the severity of bowel dysfunction were significant independent predictors of bowel-related QoL, with resilience demonstrating a stronger association. Overall, this study elucidates the importance of resilience in shaping patients' perceptions of their bowel health within the SCI population. In addition to the more expected determinants of bowel-related QoL, such as the severity of bowel dysfunction, resilience emerged as a notable factor. Accordingly, integrating interventions that enhance resilience within bowel rehabilitation programs may yield improvements in patients' perceived bowel health beyond the benefits achievable through bowel function enhancement alone.

Pre-Hospital and Post-Hospital Quality of Care in Traumatic Spinal Column and Cord Injuries in Iran

STUDY DESIGN

A retrospective study.

OBJECTIVES

The quality of care (QoC) for spinal column/cord injury patients is a major health care concern. This study aimed to implement the QoC assessment tool (QoCAT) in the National Spinal Cord/Column Injury Registry of Iran (NSCIR-IR) to define the current state of pre- and post-hospital QoC of individuals with Traumatic Spinal Column and Spinal Cord Injuries (TSC/SCIs).

METHODS

The QoCAT, previously developed by our team to measure the QoC in patients with TSC/SCIs, was implemented in the NSCIR-IR. The pre-hospital QoC was evaluated through a retrospective analysis of NSCIR-IR registry data. Telephone interviews and follow-ups of patients with SCI evaluated the QoC in the post-hospital phase.

RESULTS

In the pre-hospital phase, cervical collars and immobilization were implemented in 46.4% and 48.5% of the cases, respectively. Transport time from the scene to the hospital was documented as <1 hour and <8 hours in 33.4% and 93.9% of the patients, respectively. Post-hospital indicators in patients with SCI revealed a first-year mortality rate of 12.5% (20/160), a high incidence of secondary complications, reduced access to electrical wheelchairs (4.2%) and modified cars (7.7%), and low employment rate (21.4%).

CONCLUSION

These findings revealed a significant delay in transport time to the first care facilities, low use of immobilization equipment indicating low pre-hospital QoC. Further, the high incidence of secondary complications, low employment rate, and low access to electrical wheelchairs and modified cars indicate lower post-hospital QoC in patients with SCI. These findings imply the need for further planning to improve the QoC for patients with TSC/SCIs.

Usability of an exosuit in domestic and community environments

BACKGROUND

Exosuits have been shown to reduce metabolic cost of walking and to increase gait performance when used in clinical environment. Currently, these devices are transitioning to private use to facilitate independent training at home and in the community. However, their acceptance in unsupervised settings remains unclear. Therefore, the aim of this study was to investigate end-user perspectives and the adoption of an exosuit in domestic and community settings.

METHODS

We conducted a mixed-method study to investigate the usability and user experience of an exosuit, the Myosuit. We leveraged on a cohort of seven expert users, who had the device available at home for at least 28 days. Each participant completed two standardized questionnaires (SUS and QUEST) and one personalized, custom questionnaire. Furthermore, a semi-structured interview with each participant was recorded, verbatim transcribed and analyzed using descriptive thematic analysis. Data collected from device sensors quantified the frequency of use.

RESULTS

A mean SUS score of 75.4 out of 100 was reported. Five participants scored above the threshold for above-average usability. Participants also expressed high satisfaction with most of the technical features in the QUEST with an average score of 4.1 (3.86-4.71) out of 5. Participants used the Myosuit mainly for walking outside and exercising at home. However, the frequency of use did not meet the recommendations for physical activity established by the World Health Organization. Five participants used the Myosuit approximately once per week. The two other participants integrated the device in their daily life and used the Myosuit to a greater extent (approx. five times per week). Major factors that prevented an extensive use of the technology were: (i) difficulties in donning that led to (ii) lack of independence and (iii) lack of motivation in exercising.

CONCLUSIONS

Although usable for various activities and well perceived, the adoption of the exosuit in domestic and community settings is yet limited. Use outside the clinic poses further challenges that should be considered when developing new wearable robots. Primarily, design should meet the users' claim for independence and increased adjustability of the device.

Determinants of Quality of Life in Individuals With Spinal Cord Injury Using Structural Equation Modeling

OBJECTIVE

The objective of this study is to examine the interdependent associations between International Classification of Functioning, Disability and Health (ICF) domains and their relationship with environmental factors with regard to quality of life (QoL) in individuals with spinal cord injury (SCI).

DESIGN

Survey, cross-sectional study, and model testing using structural equation modeling.

SETTING

Two inpatient and outpatient SCI rehabilitation units, Sheba Medical Center and Loewenstein Hospital, Israel.

PARTICIPANTS

Convenience sample of 156 individuals with SCI (N=156).

INTERVENTIONS

Not applicable.

MAIN OUTCOME MEASURES

QoL assessed by the World Health Organization Quality of Life Assessment-BREF. Neurological impairment after SCI reflected by lesion completeness and neurologic level of injury as measured by the International Standards for Neurological Classification of Spinal Cord Injury. The Spinal Cord Independence Measure to assess SCI-related task performance. ICF Brief Core Sets composition scores to assess impairment in body structure and function domains, limitations in activities, restriction in participation constructs, and the effect of environmental factors within the ICF model.

RESULTS

Level of spinal cord injury and ICF Brief Core Sets composite score relating to activities and participation construct demonstrated a direct significant association with QoL. Moreover, a significant indirect association with QoL was found between the composite scores in ICF body structure and function and environmental factors, level of spinal cord injury, time since injury onset, and sex. Because the Spinal Cord Independence Measure was not related to QoL, we inferred that the categories related to instrumental activities of daily living and participation exert the most significant influence on QoL.

CONCLUSIONS

In order to optimize improvements in quality of life, current rehabilitation programs should target limitations specifically related to instrumental activities of daily living and participation restrictions. It may serve as a focal point for further development of current therapeutic models and analytical methods that optimize rehabilitation planning and decision making among both health care professionals and patients.

The role of mindfulness in quality of life of persons with spinal cord injury: a cross-sectional study

BACKGROUND

Quality of life is considered the most overarching psychosocial adaptation outcome following the rehabilitation of persons with spinal cord injury. Literature suggests that the quality of life of persons with spinal cord injury is determined by many personal and psychological factors, including mindfulness. This study aimed to identify the direct and indirect effect of mindfulness on the quality of life of persons living with spinal cord injury.

METHODS

Participants consisted of 231 members of three spinal cord injury organizations in the United States: United Spinal Association, North American Spinal Cord Injury Consortium, and Paralyzed Veterans of America-Wisconsin Chapter. The participants completed a set of standardized self-report questionnaires in an online Qualtrics survey. A hierarchical regression analysis was performed to identify the contribution of mindfulness to quality of life, controlling for sociodemographic and injury-related factors. A serial mediation analysis was performed to examine the indirect effect of mindfulness on quality of life.

RESULTS

In the hierarchical regression analysis, sociodemographic and injury-related factors (i.e., age, gender, race, marital status, education, employment, level and completeness of injury, comorbidities, frequency of hospitalization, pain intensity, and functional limitation) and mindfulness explained 59% variance on quality of life of the participants with spinal cord injury. Mindfulness uniquely contributed to the higher quality of life above and beyond sociodemographic and injury-related variables. In the serial mediation analysis, pain and functional limitation did not significantly mediate the relationship between mindfulness and quality of life. However, the indirect effects of mindfulness on functional limitation and quality of life through pain were significant.

CONCLUSION

The findings underscore the vital role of mindfulness in improving the quality of life of persons with spinal cord injury. Implications of these findings for future research and clinical practice are discussed.

Does Older Age Affect the Likelihood to Achieve Normal Quality of Life Following Traumatic Spinal Cord Injury? A Prospective Observational Cohort Study

Previous studies suggest that health-related quality of life (HRQoL) is impaired after a traumatic spinal cord injury (TSCI) and may be worse with older age. This study determines whether the expectations to achieve normal HRQoL in Canadians following a TSCI is indeed influenced by older age. A prospective observational study was conducted on adult patients admitted acutely at a single level-1 trauma center after a TSCI. We assessed HRQoL using the SF-36 physical and mental component summary (PCS and MCS) scores obtained one year post injury. Using Canadian normative HRQoL data matched for age and sex, we defined normal PCS and MCS as a score within 2 standard deviations with respect to the normative Canadian mean. We then conducted logistic regression models to determine the relationship between age at the time of injury and the likelihood of achieving normal PCS and MCS, while controlling for confounding variables. Overall, 39.3% of individuals displayed normal PCS, whereas 80.4% displayed normal MCS. When adjusted for confounders, older age remained significantly associated with increased likelihood of achieving normal PCS (Odds Ratio: 1.03; 95% Confidence Interval: 1.01-1.06; P=0.002). We observed no association between age and achieving normal MCS. A significant proportion of individuals can achieve a normal HRQoL similar to their healthy peers following a TSCI, particularly for the mental component. When compared to younger individuals, older individuals are more likely to achieve normal PCS and present a similar likelihood for achieving normal MCS.

Access and engagement with places in the community, and the quality of life among people with spinal cord damage

OBJECTIVES

This study aims to investigate the association between self-reported accessibility and engagement with health services and places in the community, and quality of life (QOL) for people with spinal cord damage (SCD).

DESIGN

Cross-sectional survey.

SETTING

Community.

PARTICIPANTS

Two-hundred and sixty-six people with a SCD residing in Australia (M_age = 62.34, SD_age = 15.95).

OUTCOME MEASURE

The International Spinal Cord Injury Quality of Life Basic Data Set.

RESULTS

Univariate regressions demonstrated that accessing a higher number of places in the community was significantly associated with favorable self-reported psychological health (β = .160, P < .01), physical health (β = .144, P < .01), overall well-being (β = .206, P < .01), and QOL (β = .187, P < .01). In contrast, reporting a higher number of inaccessible places was significantly associated with unfavorable self-reported psychological health (β = -.171, P < .01), physical health (β = -.270, P < .001), overall well-being (β = -.238, P < .001), and QOL (β = -.244, P < .001). Being older and living with injury or onset of damage longer were significantly associated with favorable scores across all outcomes (P < .01) except physical health.

CONCLUSIONS

Community engagement can have a considerable impact on the self-reported health and QOL of people with SCD. Interventions aimed at increasing community engagement, particularly for people who have recently experienced SCD are warranted.

TWIICE One powered exoskeleton: effect of design improvements on usability in daily life as measured by the performance in the CYBATHLON race

Background

Spinal cord injury leading to paraplegia affects the mobility and physiological well-being of one in a thousand people. Powered exoskeletons can temporarily restore the ability to walk. Their relevance in daily life is still limited because of low performance beyond ground that is even. CYBATHLON is an international competition promoting improvements in assistive technology. In this article, we present the latest design and results of testing of TWIICE One version 2018, one of the competing devices in the 2020 race.

Methods

A person with a motor-complete spinal cord injury at thoracic level T10 participated as race pilot. Training ahead of the race took place over one week at a rate of 2 h per day. The time to perform each of the seven tasks of the competition was recorded together with the number of repetitions. Performance is compared over the training period and against the 2016 race results.

Results

Progression was observed in all tasks and accounted for by both user training and technology improvements. Final competition rank was second out of seven participating teams, with a record time of 4′40". This represents an average improvement of 40% with respect to comparable obstacles of the 2016 race, explaining the two ranks of improvement since then.

Conclusion

These results help understand which features had a positive impact on the real-life performance of the device. Understanding how design affects performance is key information to create devices that really improve the life of people living with paraplegia.

Rehabilitation outcome in people with spinal cord injuries resulting from diving in South Korea

STUDY DESIGN

Retrospective electronic medical record review combined with a telephone interview.

OBJECTIVES

The purpose of this study was to describe the neurological and socio-professional outcomes of patients with diving injuries of the cervical spine.

SETTING

A tertiary hospital and its affiliated rehabilitation hospital in South Korea.

METHODS

Electronic medical records were reviewed for medical and neurological information. Telephone interviews were then conducted with questionnaire regarding specific circumstances at the time of injury and social status.

RESULTS

A total of 33 patients with spinal cord injury (SCI) due to diving accidents were analyzed, of which 27 responded to telephone interviews. Thirty-two (97%) participants were men and 27 (81.8%) were younger than 40 years at the time of injury. The American Spinal Injury Association grade A was the most common of all grades in 16 participants (48.5%), whereas C4 was the most common neurologic level of the injury (n = 13, 39.4%). SCI due to diving accidents most commonly occurred in swimming pools in holiday lodges (n = 12, 36.4%). Five out of 13 married couples with motor complete SCI were divorced or separated after injury. Eight persons resumed work or studies after the injury, with a mean return time of 33 (24.4) months.

CONCLUSIONS

SCI resulting from a diving accident not only causes severe functional impairment but can also result in changes in marital and employment status. This study may be used as a basic source of education and awareness to prevent further SCI due to diving accidents.

Assessment of the unmediated relationship between neurological impairment and health-related quality of life following spinal cord injury

Objective: To assess the unmediated association between neurological impairment and quality of life (QoL) among persons with spinal cord injury (SCI), in the context of both early post-acute and long-term rehabilitation settings.Design: An observational prospective cross-sectional study.Setting: Two neurological rehabilitation centers, specializing in spinal cord injury, within a university hospital.Methods: 156 adults with spinal cord injury in the early post-acute and chronic stages of rehabilitation.Outcome Measures: Participants were categorized into tetraplegia or paraplegia groups based on neurological level of injury, and into complete or incomplete groups based on American Spinal Injury Association (ASIA) Impairment Scale (AIS) score. QoL was assessed by means of the World Health Organization Quality of Life Assessment-BREF (WHOQOL-BREF), Satisfaction with Life Scale (SWLS), Life Satisfaction Questionnaire (LISAT-9), and Personal Well-Being Index (PWI).Results: WHOQOL-BREF and PWI predicted Level of Injury group classification and WHOQOL-BREF predicted Setting group classification. None of the questionnaires differentiated between the Type of Injury groups. At the early post-acute stage of rehabilitation, the QoL scores of participants with tetraplegia and paraplegia did not differ significantly, while significantly higher QoL scores were revealed in paraplegics in the long-term setting group.Conclusions: A direct, unmediated effect of severity of neurological impairment was revealed with the WHOQOL-BREF, which distinguished between the tetraplegia and paraplegia groups, but not between the complete and incomplete injuries. QoL was significantly higher in paraplegia than in tetraplegia following the early post-acute stage of rehabilitation.

How do the influencing factors of health-related quality of life of the injured patient differ according to activity limitations?

PURPOSE

This study aimed to ascertain the general characteristics of injured patients and use the Andersen Model to identify factors affecting health-related quality of life (QOL) in injured patients with or without activity limitations.

METHODS

We used data of 1602 injured patients from 2014 to 2017 from the population-based Korea National Health and Nutrition Examination Survey, South Korea. QOL was measured using the EQ-5D-3L, and activity limitations were analyzed alongside predisposing factors (gender, age, education level, and marital status), enabling factors (basic living security, health insurance type, private insurance status, household income, and living with family), need factors (number of chronic diseases, subjective health status, and unmet medical needs), and health behaviors (smoking status, alcohol consumption, physical activity, and health screening). Data were analyzed using homogeneity testing, t tests, and logistic and multiple regression.

RESULTS

The mean EQ-5D index was 0.8 with activity limitations and 0.9 without activity limitations. In mobility domain, patients without activity limitations showed significant effects of age, education level, number of chronic diseases, subjective health status, and unmet medical needs on mobility, whereas patients with activity limitations only showed a significant effect of age. In self-care domain, age, household income, and number of chronic diseases showed significant factors on patients without activity limitations, but there was no significant factor associated with activity limitations. Among the factors affecting usual activities, gender was found to have a significant effect only on patients with activity limitations, and subjective health status was found to have a significant effect regardless of activity limitations. Among the factors affecting pain/discomfort, living with family only affected pain/discomfort in patients with activity limitations. Among the factors affecting anxiety/depression, gender and alcohol consumption had significant effects only on patients with activity limitations.

CONCLUSION

Factors affecting the QOL of injured patients differed depending on whether patients had activity limitations. Therefore, when assessing injured patients, it may be necessary to ascertain the extent of activity limitations, and medical institutions and local communities need when implementing education and interventions to improve their QOL.

Changes in health-related quality of life among older adults aging with long-term spinal cord injury

STUDY DESIGN

Cross-sectional and longitudinal.

OBJECTIVES

To (i) describe health-related quality of life (HRQoL) and changes over 6 years in older adults aging with long-term spinal cord injury (SCI) and (ii) investigate how changes in HRQoL are associated with age, gender, and injury characteristics.

SETTING

Community in southern Sweden.

METHODS

From the initial 123 participants (years 2011-2012) in the Swedish Aging with Spinal Cord Injury Study (SASCIS), 77 individuals (32% women, C1-L3, AIS A-D, median age 66 years, median time since injury 31 years, 30% complete injuries) were assessed 6 years later. HRQoL was rated with the Spinal Cord Injury Quality of Life Questionnaire (SCI QL-23). Associations were investigated using multivariable linear regression analyses.

RESULTS

The median rating of global QoL (scale range 0-100) was relatively high at both assessments (67 and 83, respectively). There was a large variability in all HRQoL-domains and no significant changes over 6 years. As compared to an AIS D injury, a tetraplegia AIS A-C injury and tetraplegia and paraplegia AIS A-C injuries were associated with positive change in depressive symptoms and global QoL, respectively.

CONCLUSIONS

Older adults aging with long-term SCI show large variations in all HRQoL-domains and have the potential to maintain a high and stable level of HRQoL over time. Persons with AIS D injuries may need increased attention to mitigate negative changes in depressive symptoms and global QoL. Further studies are needed to identify modifiable factors associated with changes in HRQoL in older adults aging with long-term SCI.

Considerations for Studying Sex as a Biological Variable in Spinal Cord Injury

In response to NIH initiatives to investigate sex as a biological variable in preclinical animal studies, researchers have increased their focus on male and female differences in neurotrauma. Inclusion of both sexes when modeling neurotrauma is leading to the identification of novel areas for therapeutic and scientific exploitation. Here, we review the organizational and activational effects of sex hormones on recovery from injury and how these changes impact the long-term health of spinal cord injury (SCI) patients. When determining how sex affects SCI it remains imperative to expand outcomes beyond locomotor recovery and consider other complications plaguing the quality of life of patients with SCI. Interestingly, the SCI field predominately utilizes female rodents for basic science research which contrasts most other male-biased research fields. We discuss the unique caveats this creates to the translatability of preclinical research in the SCI field. We also review current clinical and preclinical data examining sex as biological variable in SCI. Further, we report how technical considerations such as housing, size, care management, and age, confound the interpretation of sex-specific effects in animal studies of SCI. We have uncovered novel findings regarding how age differentially affects mortality and injury-induced anemia in males and females after SCI, and further identified estrus cycle dysfunction in mice after injury. Emerging concepts underlying sexually dimorphic responses to therapy are also discussed. Through a combination of literature review and primary research observations we present a practical guide for considering and incorporating sex as biological variable in preclinical neurotrauma studies.

Comparison of the quality of life in individuals with spinal cord injury wearing either reciprocating gait orthosis or hip knee ankle foot orthosis: a cross-sectional study

BACKGROUND

The quality of life (QoL) for patients with spinal cord injuries (SCI) is lower than that for healthy individuals. The main purpose of prescribing orthoses for these individuals is to improve their mobility and QoL. The hip knee ankle foot orthosis (HKAFO) has been the conventional choice for such patients, whilst the reciprocating gait orthosis (RGO) is a more contemporary option. Although the impact of these two types of orthoses on the biomechanics of walking has been previously evaluated in patients with SCI, there has been no specific comparison of their relative effects on QoL.

OBJECTIVES

This study aimed to evaluate the Sickness Impact Profile (SIP-68) QoL questionnaire's total score and its sub-scores in patients with SCIs wearing either RGOs or HKAFOs.

METHODS

This study was performed on 22 participants (11 participants wearing RGOs and 11 wearing HKAFOs). QoL scores were evaluated in each group of patients using the total and sub-scores from the SIP-68 questionnaire.

RESULTS

There were no significant differences in the total SIP-68 scores between the RGO and HKAFO groups (p = .57). However, emotional stability and emotional independence sub-scores were significantly lower for the RGO users than for the HKAFO users (p = .03 and p = .01), respectively.

CONCLUSIONS

Based upon this preliminary study, participants wearing RGOs or HKAFOs had similar QoL scores. However, those wearing RGOs may experience better emotional stability, communication, and emotional independence. This preliminary study does not provide definite conclusions since a large randomized control trial is required to compare the effects of these orthoses on the QoL scores in patients with SCIs.Implications for rehabilitationOur main aim in the current investigation was to shed light on the question that does the biomechanical superiority of the RGO to the HKAFO leads to better quality of life in SCI subjects who are using RGO. Regarding the fact that the primary goal of rehabilitation of people with SCI is to improve their quality of life, it seems that the more complicated newer orthosis (RGO) has no difference with the older type (HKAFO) in achieving the rehabilitation goals. More studies will in fact be necessary to find a definitive answer for this important question.According to the findings of our study, it seems to be more appropriate to prescribe RGO for male participants with higher body weight.

Health-related quality of life and related characteristics of persons with spinal cord injury in Nigeria

Background: Spinal cord injury (SCI) is impairment of the spinal cord resulting in numerous health problems that considerably affect the quality of life (QOL) of the patients. Moreover, a number of sociodemographic and clinical characteristics may influence the persons' health-related quality of life (HRQOL). However, there is limited information on the HRQOL and related characteristics among affected persons living in Nigeria. This study explores the HRQOL and related characteristics of persons with SCI in Kano, Northwestern Nigeria. Methods: A prospective cross-sectional survey of 41 subjects with SCI and 40 age and gender matched healthy subjects was conducted from January to December 2016. Subjects' sociodemographic and clinical characteristics and HRQOL (using the SF-36 questionnaire) were collected and analyzed. Results: The majority of the subjects were men in both the SCI (85.4%) and healthy (82.5%) groups. The mean injury duration was 28.4 ± 20.2 months. Road traffic accident (46.3%) was the leading cause of injury with paraplegia (70.7%) being the most frequent level of injury. A greater number of the subjects (43.9%) had a complete impairment. Subjects with SCI had significantly lower HRQOL in the domains of general health, physical functioning, bodily pain, social functioning, role-emotional, and mental health compared to healthy controls. Gender, level of injury, and severity of injury were commonly found to be related to lower HRQOL scores. Conclusion: Persons with SCI from Kano, Northwestern Nigeria have lower HRQOL across various domains compared to healthy controls. Common factors related to lower HRQOL scores were gender, level of injury, and severity of injury. There is a need for optimal rehabilitation for persons with SCI in Kano, Northwestern Nigeria.

Well on wheels intervention: Satisfaction with life and health for adults with spinal cord injuries

Objective/Background: To examine how demographic and injury characteristics identify satisfaction with life (SWL), and assess the differential effects of a wellness intervention by baseline SWL groups.Design: Baseline and longitudinal analysis of a randomized controlled pilot intervention using decision tree regression and linear mixed models.Setting: Community based.Participants: Seventy-two individuals with spinal cord injury (SCI) were randomized to an intervention group (n = 39) or control group (n = 33). Participants were aged 44.1 ± 13.0 years and 13.1 ± 10.6 years post-injury. Most participants were male (n = 50; 69.4%) and had paraplegia (n = 38; 52.7%). Participants were classified as high versus low SWL at baseline using a cutoff score of 20.Interventions: The intervention aimed to increase self-efficacy, and in turn, increase engagement in health-promoting behaviors related to SWL. Six 4-hour in-person workshops were conducted over a 3-month period led by experts and peer-mentors who were available for support.Outcome measure(s): Self-efficacy for health practices, secondary condition severity, health-promoting behaviors, perceived stress, and SWL.Results: At baseline, participants with low SWL were recently injured (<4.5 years), while persons with high SWL were married and younger (<49 years old). Intervention participants with low SWL at baseline significantly improved SWL over time compared to those with high SWL (P = 0.02).Conclusion: Certain injury and demographic characteristics were associated with SWL, and intervention participants with low SWL at baseline improved their SWL over 2 years. Healthcare providers should consider time post-injury, marital status, and age in identifying individuals at risk for low SWL that may benefit from wellness interventions.

Assessment of quality of life in relation to spasticity severity and socio-demographic and clinical factors among patients with spinal cord injury

Objective: To assess the impact of spasticity severity as well as socio-demographic and clinical factors on quality of life (QOL) and to identify factors predicting poor QOL among patients with spinal cord injury (SCI)Design: Descriptive cross-sectional study.Setting: Tertiary care clinic in Istanbul, Turkey.Participants: A total of 110 patients with SCI (mean (SD) age: 43.8 (14.7) years, 58.2% were males) were enrolled.Assessments: The American Spinal Injury Association (ASIA) Impairment Scale (AIS), Modified Ashworth Scale (MAS) and Turkish version of the World Health Organization Quality of life questionnaire (WHOQOL-BREF) were utilized to determine the SCI category, severity of spasticity and QOL scores, respectively.Outcome measures: The WHOQOL-BREF scores were evaluated with respect to the severity of spasticity, aetiology and duration of SCI, AIS category and method of bladder management.Results: The mean (SD) physical health (41.9 (15.3) vs. 46.5 (10.9), P = 0.029), social relationships (45.6 (20.2) vs. 53.8 (17.3), P = 0.025) and total WHOQOL-BREF scores were significantly lower in patients with more severe spasticity. Multivariate linear regression analysis revealed that severity of spasticity was a significant predictor of decreased WHOQOL-BREF total scores, physical domain scores and social relations domain scores by 11.381 (P = 0.007), 11.518 (P = 0.005) and 17. 965 (P = 0.004), respectively.Conclusion: In conclusion, addressing QOL in relation to severity of spasticity for the first time among Turkish SCI patients, our findings revealed a negative impact of the spasticity severity on the WHOQOL-BREF scores, particularly for physical health and social relationship domains.

Work and wellbeing-related consequences of different return-to-work pathways of persons with spinal cord injury living in Switzerland

STUDY DESIGN

Observational study based on the 2012 community survey of the Swiss Spinal Cord Injury Cohort Study (SwiSCI).

OBJECTIVES

To investigate work and wellbeing-related consequences of different return-to-work (RTW) pathways after SCI.

SETTING

Community-based.

METHODS

Using a subsample of 243 SwiSCI participants, we determined whether a respondent had returned to the pre-injury employer, started with a new employer or had not returned to gainful employment post-SCI. For each pathway, descriptive statistics were provided and work and wellbeing-related consequences were examined with regression analyses.

RESULTS

One hundred eleven (45.7%) participants had returned to their pre-injury employer, 80 (32.9%) had changed employers and 52 (21.4%) had never returned to paid work post-SCI. Although returning to the pre-injury employer was associated with a shorter RTW time and a higher current weekly work time compared with starting work with a new employer, no significant differences were found with regard to current employment status and post-SCI work duration. Concerning wellbeing-related outcomes (i.e., income, quality of life and life satisfaction), the two pathways did not differ.

CONCLUSIONS

Although lasting RTW had beneficial wellbeing outcomes, the specific pathway initially taken (i.e., pre-injury vs. new employer) appeared less crucial. Although the two pathways seem equally viable, longitudinal data are required to corroborate the present findings, and future research needs to clarify the role of the client triage system and of vocational rehabilitation practices with regard to person-job match and its impact on job satisfaction and job performance.

Gait Training in Acute Spinal Cord Injury Rehabilitation-Utilization and Outcomes Among Nonambulatory Individuals: Findings From the SCIRehab Project

OBJECTIVES

To investigate the relation of gait training (GT) during inpatient rehabilitation (IPR) to outcomes of people with traumatic spinal cord injury (SCI).

DESIGN

Prospective observational study using the SCIRehab database.

SETTING

Six IPR facilities.

PARTICIPANTS

Patients with new SCI (N=1376) receiving initial rehabilitation.

INTERVENTIONS

Patients were divided into groups consisting of those who did and did not receive GT. Patients were further subdivided based on their primary mode of mobility as measured by the FIM.

MAIN OUTCOME MEASURES

Pain rating scales, Patient Health Questionnaire Mood Subscale, Satisfaction With Life Scale, and Craig Handicap Assessment and Reporting Technique (CHART).

RESULTS

Nearly 58% of all patients received GT, including 33.3% of patients who were primarily using a wheelchair 1 year after discharge from IPR. Those who used a wheelchair and received GT, received significantly less transfer and wheeled mobility training (P<.001). CHART physical independence (P=.002), mobility (P=.024), and occupation (P=.003) scores were significantly worse in patients who used a wheelchair at 1 year and received GT, compared with those who used a wheelchair and did not receive GT in IPR. Older age was also a significant predictor of worse participation as measured by the CHART.

CONCLUSIONS

A significant percentage of individuals who are not likely to become functional ambulators are spending portions of their IPR stays performing GT, which is associated with less time allotted for other functional interventions. GT in IPR was also associated with participation deficits at 1 year for those who used a wheelchair, implying the potential consequences of opportunity costs, pain, and psychological difficulties of receiving unsuccessful GT. Clinicians should consider these data when deciding to implement GT during initial IPR.

Degree of Contribution of Motor and Sensory Scores to Predict Gait Ability in Patients With Incomplete Spinal Cord Injury

Objective

To identify different contributions of motor and sensory variables for independent ambulation of patients with incomplete spinal cord injury (SCI), and reveal the most significant contributors among the variables.

Methods

The retrospective study included 30 patients with incomplete SCI and lesions were confirmed by magnetic resonance imaging. Motor and sensory scores were collected according to the International Standards for Neurological Classification of Spinal Cord Injury. The variables were analyzed by plotting ROC (receiver operating characteristic) curves to estimate their differential contributions for independent walking. The most significant functional determinant was identified through the subsequent logistic regression analysis.

Results

Motor and sensory scores were significantly different between the ambulators and non-ambulators. The majority was associated to the function of lower extremities. Calculation of area under ROC curves (AUC) revealed that strength of hip flexor (L2) (AUC=0.905, p<0.001) and knee extensor (L3) (AUC=0.820, p=0.006) contributed the greatest to independent walking. Also, hip flexor strength (L2) was the single most powerful predictor of ambulation by the logistic regression analysis (odds ratio=6.3, p=0.049), and the model fit well to the data.

Conclusion

The most important potential contributor for independent walking in patients with incomplete SCI is the muscle strength of hip flexors, followed by knee extensors compared with other sensory and motor variables.

Computer-Assessed Preference-Based Quality of Life in Patients with Spinal Cord Injury

Objectives

Our aims were to (1) measure quality of life (QoL) in spinal cord injury (SCI) patients using different methods and analyze differences; (2) enable targeted treatments by identifying variables that affect QoL; and (3) provide decision-makers with useful data for cost-utility analyses in SCI population.

Methods

Seventy-one participants were enrolled. The computer-based tool UceWeb was used to elicit QoL in terms of utility coefficients, through the standard gamble, time trade-off, and rating scale methods. The SF36 questionnaire was also administered. Statistical analyses were performed to find predictors of QoL among collected variables.

Results

Median values for rating scale, time trade-off, and standard gamble were 0.60, 0.82, and 0.85, respectively. All scales were significantly correlated. Rating scale and SF36 provided similar values, significantly lower than the other methods. Impairment level, male gender, older age, living alone, and higher education were correlated with lower QoL but accounted for only 20% of the variation in utility coefficients.

Conclusions

Demographic and clinical variables are useful to predict QoL but do not completely capture utility coefficients variability. Therefore, direct preference-based utility elicitation should be strengthened. Finally, this is the first study providing data that can be used as a reference for cost-utility analyses in the Italian SCI population.

The association between bladder-emptying methods and health-related quality of life among Iranian individuals with spinal cord injury

OBJECTIVES

In this study, we compared the health-related quality of life (HRQoL) among patients with spinal cord injury (SCI) using different bladder emptying methods including normal spontaneous micturition (NSM), micturition with assisted maneuvers (MAM), aseptic intermittent catheterization by patient (IC-P), aseptic IC by an attendant/caregiver (IC-A) and indwelling catheterization.

DESIGN

Cross-sectional.

SETTING

Tertiary rehabilitation center.

PARTICIPANTS

Patients referred to Brain and Spinal Cord Injury Research Center between 2012 and 2014.

OUTCOME MEASURES

HRQoL was assessed by Short Form Health Survey (SF-36). Hierarchical regression analysis with adjustment for probable confounders (demographic and injury-related variables) was performed to assess the relationship between bladder-emptying method and total SF-36 score.

RESULTS

Patients with injury at cervical sections had significantly lower scores in domain of physical functioning (PF), physical component summary (PCS) and total score (P: 0.001, <0.0001 and 0.027, respectively). Longer time since injury was associated with better scores of PCS, Mental component summary (MCS) and total score (P: 0.002, <0.0001 and 0.003, respectively). Regression analysis showed that the effect of bladder-emptying method on total score of SF-36 was significant (P < 0.0001) and this relationship remained significant after adjustment for probable confounders in the second step of hierarchical regression analysis (R: 0.923, R²: 0.852, Adjusted R²: 0.847, P < 0.0001). Patients with NSM had the highest scores in SF-36 instrument and individuals with indwelling catheterization had the poorest HRQoL in all domains.

CONCLUSION

This study shows that the type of bladder management method affects HRQoL significantly in patients with SCI. Intermittent catheterization are recommended to be administered instead of indwelling catheterization to improve HRQoL.

C-reactive protein as an available biomarker determining mental component of health-related quality of life among individuals with spinal cord injury

OBJECTIVES

C-reactive protein (CRP) has been shown to correlate with health-related quality of life (HRQL) in some chronic medical conditions. However, these associations have not yet described in spinal cord injury (SCI). In this study, we tried to identify biomarkers associated with HRQL in SCI.

DESIGN

Cross-sectional.

SETTING

Tertiary rehabilitation center.

PARTICIPANTS

Referred patients to Brain and Spinal Cord Injury Research Center between November 2010 and April 2013.

OUTCOME MEASURE

Blood samples were taken to measure circulatory CRP, leptin, adiponectin, ferritin, parathyroid hormone, calcitonin, thyroid hormones, fasting plasma glucose and lipid profile. All the analyses were performed with adjustment for injury-related confounders (level of injury, injury completeness and time since injury) and demographic characteristics. HRQL was measured with Short Form health survey (SF-36).

RESULTS

The initial inverse association between CRP and total score of SF-36 (P: 0.006, r = -0.28) was lost after adjustment for confounders. However, the negative correlation between CRP and Mental Component Summary (MCS) remained significant (P: 0.0005, r = -0.38). Leptin level was inversely correlated with Physical Component Summary (PCS) (P: 0.02, r = -0.30).

CONCLUSION

Although CRP and leptin levels were not related with total scores of SF-36 questionnaire, CRP can be more useful in determining mental component of HRQL whereas leptin can be a determinant of physical component. The combined consideration of these two biomarkers may help to predict HRQL in individuals with SCI.

Traumatic spinal cord injury

Traumatic spinal cord injury (SCI) has devastating consequences for the physical, social and vocational well-being of patients. The demographic of SCIs is shifting such that an increasing proportion of older individuals are being affected. Pathophysiologically, the initial mechanical trauma (the primary injury) permeabilizes neurons and glia and initiates a secondary injury cascade that leads to progressive cell death and spinal cord damage over the subsequent weeks. Over time, the lesion remodels and is composed of cystic cavitations and a glial scar, both of which potently inhibit regeneration. Several animal models and complementary behavioural tests of SCI have been developed to mimic this pathological process and form the basis for the development of preclinical and translational neuroprotective and neuroregenerative strategies. Diagnosis requires a thorough patient history, standardized neurological physical examination and radiographic imaging of the spinal cord. Following diagnosis, several interventions need to be rapidly applied, including haemodynamic monitoring in the intensive care unit, early surgical decompression, blood pressure augmentation and, potentially, the administration of methylprednisolone. Managing the complications of SCI, such as bowel and bladder dysfunction, the formation of pressure sores and infections, is key to address all facets of the patient's injury experience.

Active Lifestyle Is Associated With Reduced Dyspnea and Greater Life Satisfaction in Spinal Cord Injury

OBJECTIVE

To assess the relations between measures of activity with dyspnea and satisfaction with life in chronic spinal cord injury (SCI).

DESIGN

Cross-sectional survey.

SETTING

Five SCI centers.

PARTICIPANTS

Between July 2012 and March 2015, subjects (N=347) with traumatic SCI ≥1 year after injury who used a manual wheelchair or walked with or without an assistive device reported hours spent away from home or yard on the previous 3 days, sports participation, and planned exercise.

INTERVENTIONS

Not applicable.

MAIN OUTCOME MEASURES

Satisfaction with Life Scale (SWLS) and dyspnea. Dyspnea was defined as shortness of breath when hurrying on the level or going up a slight hill, going slower than people the same age on the level because of breathlessness, or stopping for breath when going at your own pace, or after about 100yd (or after a few minutes) on the level.

RESULTS

Dyspnea prevalence was 30%. Adjusting for asthma or chronic obstructive pulmonary disease, mobility mode, race, and season, there was a significant linear trend between greater SWLS scores and quartiles of time spent away from the home or yard (P=.0002). SWLS score was greater if participating in organized sports (P=.01), although was not significantly greater with planned exercise (P=.093). Planned exercise was associated with a reduced odds ratio (OR) of dyspnea (.57; 95% confidence interval [CI], .34-.95; P=.032), but organized sports was not (P=.265). Dyspnea was not significantly increased in persons who spent the fewest hours outside their home or yard (≤7h) compared with people who spent the most hours outside their home or yard (>23h) (OR=1.69; 95% CI, 0.83-3.44; P=.145).

CONCLUSIONS

In SCI, a planned exercise program is associated with less dyspnea. An active lifestyle characterized by greater time spent away from home or yard and sports participation is associated with greater SWLS scores.

Is Level of Injury a Determinant of Quality of Life Among Individuals with Spinal Cord Injury? A Tertiary Rehabilitation Center Report

OBJECTIVES

The role of injury-related variables in determining health-related quality of life (HRQOL) among Iranian persons with spinal cord injury (SCI) has not yet been fully described. In this study, we compared HRQOL between individuals with injury at cervical level and those with injury at thoracolumbar sections and evaluated the discriminating value of injury level as a determinant of HRQOL among Iranian people with SCI.

METHODS

Individuals with SCI, who were referred to Brain and Spinal Cord Injury Research Center, were invited to participate in this investigation. HRQOL was assessed using the Short Form (SF-36) questionnaire to determine the quality of life (QOL) in eight domains: physical functioning (PF), role limitation due to physical problems (RP), bodily pain (BP), general health (GH), vitality (VT), social functioning (SF), role limitation due to emotional problems (RE), and mental health (MH).

RESULTS

Ninety patients with paraplegia and 94 quadriplegic patients participated in this investigation. The mean score of PF domain was significantly lower in patients with injury at cervical level (p < 0.0001). There was no significant difference in other domains of SF-36 between subjects with paraplegia and quadriplegia (p = 0.670, 0.700, 0.910, 0.710, 0.730, 0.290 and 0.850 for RP, RE, VT, MH, SF, BP and GH, respectively). Similarly, the mean physical component summary (PCS) score was significantly higher among individuals with injury at thoracolumbar sections (p < 0.0001). The mean mental component summary (MCS) score did not differ between the two groups (p = 0.720).

CONCLUSIONS

Patients with SCI at the cervical level have similar mental health compared to those with injury at thoracolumbar sections, which shows proper mental adaptability in quadriplegic individuals. Injury level can be used as a major determinant of the physical component of QOL among people with SCI.

NeuroRex: a clinical neural interface roadmap for EEG-based brain machine interfaces to a lower body robotic exoskeleton

In this communication, a translational clinical brain-machine interface (BMI) roadmap for an EEG-based BMI to a robotic exoskeleton (NeuroRex) is presented. This multi-faceted project addresses important engineering and clinical challenges: It addresses the validation of an intelligent, self-balancing, robotic lower-body and trunk exoskeleton (Rex) augmented with EEG-based BMI capabilities to interpret user intent to assist a mobility-impaired person to walk independently. The goal is to improve the quality of life and health status of wheelchair-bounded persons by enabling standing and sitting, walking and backing, turning, ascending and descending stairs/curbs, and navigating sloping surfaces in a variety of conditions without the need for additional support or crutches.

Injury-related characteristics and quality-of-life among Iranian individuals with spinal cord injury

BACKGROUND

Health-related quality-of-life (HR-QOL) may be affected by various factors including injury-related characteristics among individuals with spinal cord injury (SCI). However, the impact of the influence of these variables has not yet been fully described in Iranian population. Here, we assessed the relationships between injury-related characteristics and HR-QOL among Iranian people with SCI.

METHODS

HR-QOL was assessed using short-form health survey (SF-36). Referred patients to Brain and Spinal Injury Research Center between 2010 and 2012 were invited to participate in this investigation. Injury-related characteristics including injury level and completeness, time since injury, plegia type, and American Spinal Injury Association (ASIA) Impairment Scale were evaluated.

RESULTS

Total of 104 patients (85 men and 19 women) entered the study. The majority of patients had a complete injury (77.9%). The most frequent ASIA score was A (75%), and the most common level of injury was at thoracic sections (61.5%). Lower injury levels were associated with higher scores in physical component summary (P = 0.040), mental component summary (P = 0.010) and subsequently total score (P = 0.006). Mean age and time since injury were 52.58 ± 12.69 and 10.88 ± 16.68 years, respectively, and were not related with HR-QOL (P = 0.70 and 0.220, respectively). There was no difference in terms of HR-QOL between patients with complete and incomplete injury. Paraplegic individuals had significantly higher scores in the domain of physical functioning compared to patients with tetraplegia (P = 0.007).

CONCLUSION

lower injury level is a significant predictor of better QOL among individuals with SCI whereas other injury-related characteristics including completeness, time since injury and plegia type may not influence HR-QOL.

Comparison of health related quality of life between two groups of veteran and non-veteran spinal cord injured patients

BACKGROUND

Patients with spinal cord injury (SCI) have a lower health related quality of life (HRQOL) compared to both healthy controls and the normal population. The aim of this study was to compare HRQOL between two groups of veteran and non-veteran SCI patients.

METHODS

All male paraplegic non-veterans who had sustained complete SCI before 1988 and were residents of Tehran province (Iran), and a similar group of SCI veterans who consecutively participated in a health screening program were enrolled in this study. Patients fewer than 35 and older than 65 years of age were not included in this study. The participants were interviewed based on the Persian version of SF-36 questionnaire by two psychologists. Eight sub-scales and two physical and mental component summaries of the instrument were assessed. We used chi-square, odds ratio, Mann-Whitney U, independent t-test and linear regression for analysis.

RESULTS

Overall, 25 veterans and 22 non-veterans were enrolled in the study. The mean age, time since injury and the presence of comorbid illnesses were not significantly different between the two groups (P>0.05). A greater number of veterans were married (p= 0.003) and employed (p= 0.047). On average, veterans had more years of formal education than non-veterans (p= 0.001). The mean (SD) bodily pain sub-scale was 72.73(31.253) for non-veterans and 49.7 (28.287) for veterans (p=0.011). Absence of comorbid illnesses was associated with a better physical component summary (p< 0.001). Employment was associated with a better mental component summary (p= 0.022).

CONCLUSION

We did not find any differences in HRQOL between the two groups except for the bodily pain sub-scale. Further studies with larger sample sizes are recommended.

Health Condition and Quality of Life in Persons with Spinal Cord Injury

BACKGROUND

During the last few decades, focus of rehabilitation outcome has been redirected to the lifetime monitoring of quality of life. The purpose of this study was to investigate the differences in quality of life perceptions between participants with spinal cord injury and participants of typical population.

METHODS

This cross-sectional controlled study of 100 adults aged 18-65 years was based on two questionnaires, Short Form-36 Health Survey (SF-36) and Spinal Cord Injury Quality of Life Questionnaire (QL-23), completed by 23 participants with paraplegia, 21 participants with tetraplegia, and 56 participants of typical population. Mann-Whitney U-test for planned comparison between groups and χ(2) test were used to analyze the differences between research groups.

RESULTS

Participants from control group perceived their general quality of life at higher level in comparison to participants with spinal cord injury (U=415.000, z=-5.804, P<0.000). Negative influence of spinal cord injury was detected in six domains (physical functioning, physical role, bodily pain, vitality, social functioning, mental health). Statistical differences between participants with paraplegia and participants with tetraplegia only in domain of functional limitations (U=103.000, z=-3.256, P<0.005).

CONCLUSION

The participants with spinal cord injury perceived both health-related and general quality of life at a lower level in comparison to controls. However, the injury level only partially determined the estimated quality of life.

Quality of life among veterans with chronic spinal cord injury and related variables

BACKGROUND

In recent decades, the incidence of spinal cord injuries has increased. In a systemic review on epidemiology of traumatic spinal cord injury in developing countries reported 25.5/million cases per year.

OBJECTIVES

To assess the quality of life (QOL) of the veterans among Iran-Iraq war with chronic spinal cord injuries (SCI) and to evaluate long-term impressions of SCI on their quality of life.

PATIENTS AND METHODS

Fifty-two veterans, all male, with chronic spinal cord injury from Iran-Iraq war (1980-1988) were interviewed and examined. The mean age of veterans at the time of interview was 49.3 years (38 to 80 years). Veterans were assessed by using a 36-item short-form (SF-36), hospital anxiety and depression scale (HADS) and the Barthel index. The presence or absence of pressure sores and spasticity were documented as well.

RESULTS

The mean age of veterans at the time of study was 49.3 years. Pearson's correlation test showed that depression and anxiety have a reverse association with mental component summary (MCS) scale and physical component summary (PCS) scale scores, respectively. Regression analysis showed a negative effect of depression and pressure sore on PCS. Moreover, no association was found between the duration of injury and age with quality of life.

CONCLUSIONS

Lower QOL was found among veterans with chronic SCI. More researches on health-related quality of life (HRQOL) are needed to give us a better understanding of changes in life of patients with SCI and the ways to improve them.

The spinal cord injury quality-of-life-23 questionnaire, Iranian validation study

BACKGROUND

The spinal cord injury quality-of-life questionnaire (SCIQL-23) is an instrument that has been developed for clinical follow-up as well health related quality-of-life (QOL) measurement in people with spinal cord injury (SCI). The purpose of this study was to assess the validity and reliability of the Persian version of SCIQL-23 in individuals with chronic SCI.

MATERIALS AND METHODS

Medical outcomes study 36 item short-form health survey (SF-36) as well as the Persian version of the SCIQL-23 questionnaires applied to be used in 52 veterans with spinal cord injuries in the Orthopedic Research Center, Mashhad University of Medical Sciences from January 2011 to August 2011. Cronbach's alpha co-efficient computed to test the reliability of the survey. In order to assess the convergent validity the correlation of each item of the SCIQL-23 done with each dimension of the SF-36 by applying the Pearson correlation co-efficient. Independent samples t-test used to test power of discrimination.

RESULTS

All of veterans were male and married. The mean age of individuals at the time of interview was 49.3 years (standard deviation = 7.9); in a range between 38 and 80 years. Most of them (88.5%) had incomplete paraplegia. Cronbach's alpha test revealed strong reliability in questions of SCI QOL (Total Cronbach's alpha = 0.764). A negative significant correlation occurred between physical function and functioning (FUNC) (r = -0.412**), bodily pain and problems related to injury (PROB) (r = -0.313*), vitality (VT) and mood state (MOOD) (r = -0.327*), social function and PROB (r = -0.309*), mental health (MH) and MOOD (r = -0.406**). Furthermore, the Mental component summary (MCS) of SF-36 had a negative significant correlation with MOOD (r = -0.312*). Similar to MCS, physical component summery (PCS) had a negative significant correlation with MOOD (r = -0.276*) in addition to FUNC (r = -0.324*) and PROB (r = -0.318*). Instead, GH (r = 0.455**), VT (r = 0.322*), MH (r = 0.276*) and PCS illustrated a positive significant correlation with global quality of life.

CONCLUSION

The Persian version of the SCQL-23 discovered to be competent in terms of its valuable psychometric properties in assessing the QOL of SCI people by showing excellent internal consistency and no floor or ceiling effect.

Accuracy of 2 activity monitors in detecting steps in people with stroke and traumatic brain injury

BACKGROUND

Advances in sensor technologies and signal processing techniques provide a method to accurately measure walking activity in the home and community. Activity monitors geared toward consumer or patient use may be an alternative to more expensive monitors designed for research to measure stepping activity.

OBJECTIVE

The objective of this study was to examine the accuracy of 2 consumer/patient activity monitors, the Fitbit Ultra and the Nike+ Fuelband, in identifying stepping activity in people with stroke and traumatic brain injury (TBI). Secondarily, the study sought to compare the accuracy of these 2 activity monitors with that of the StepWatch Activity Monitor (SAM) and a pedometer, the Yamax Digi-Walker SW-701 pedometer (YDWP).

DESIGN

A cross-sectional design was used for this study.

METHOD

People with chronic stroke and TBI wore the 4 activity monitors while they performed the Two-Minute Walk Test (2MWT), during which they were videotaped. Activity monitor estimated steps taken were compared with actual steps taken counted from videotape. Accuracy and agreement between activity monitor estimated steps and actual steps were examined using intraclass correlation coefficients (ICC [2,1]) and the Bland-Altman method.

RESULTS

The SAM demonstrated the greatest accuracy (ICC [2,1]=.97, mean difference between actual steps and SAM estimated steps=4.7 steps) followed by the Fitbit Ultra (ICC [2,1]=.73, mean difference between actual steps and Fitbit Ultra estimated steps=-9.7 steps), the YDWP (ICC [2,1]=.42, mean difference between actual steps and YDWP estimated steps=-28.8 steps), and the Nike+ Fuelband (ICC [2,1]=.20, mean difference between actual steps and Nike+ Fuelband estimated steps=-66.2 steps).

LIMITATIONS

Walking activity was measured over a short distance in a closed environment, and participants were high functioning ambulators, with a mean gait speed of 0.93 m/s.

CONCLUSIONS

The Fitbit Ultra may be a low-cost alternative to measure the stepping activity in level, predictable environments of people with stroke and TBI who can walk at speeds ≥0.58 m/s.

Effects of concurrent respiratory resistance training on health-related quality of life in wheelchair rugby athletes: a pilot study

PURPOSE

To compare the effects of 9 weeks of training with a concurrent flow resistance (CFR) device versus a concurrent pressure threshold resistance (CPTR) device on health-related quality of life (HRQoL) in wheelchair rugby (WR) athletes.

METHOD

Twenty-four male WR athletes (22 with tetraplegia, 1 with a spastic cerebral palsy, and 1 with congenital upper and lower limb deformities) were matched by lesion level, completeness of injury, and rugby classification prior to being randomly assigned to 1 of 3 groups: (1) CPTR (n=8), (2) CFR (n=8), or (3) controls (CON, n=8). Pre/post testing included assessment of HRQoL as measured by the Short-Form Health Survey Version 2.0 (SF-36v2). Manufacturer protocol guidelines for the CFR and CPTR groups were followed for breathing exercises.

RESULTS

Sixteen participants completed the study (CPTR=4, CFR=5, CON=7). The Mann-Whitney U rank order revealed significantly greater reductions in bodily pain (P = .038) and improvements in vitality (P = .028) for CFR versus CON.

CONCLUSION

Results from this study suggest that training with a CFR device improves some aspects of HRQoL (eg, vitality and bodily pain) in WR athletes. Further research with a larger sample size is needed to examine the impact of these devices on improving HRQoL for wheelchair athletes.

Impact of blood pressure dysregulation on health-related quality of life in persons with spinal cord injury: development of a conceptual model

OBJECTIVES

To identify medically relevant aspects of blood pressure dysregulation (BPD) related to quality of life in individuals with spinal cord injury (SCI), and to propose an integrated conceptual framework based on input from both individuals with SCI and their clinical providers. This framework will serve as a guide for the development of a patient-reported outcome (PRO) measure specifically related to BPD.

DESIGN

Three focus groups with individuals with SCI and 3 groups with SCI providers were analyzed using grounded-theory based qualitative analysis to ascertain how blood pressure impacts health-related quality of life (HRQOL) in individuals with SCI.

SETTING

Focus groups were conducted at 2 Veterans Affairs medical centers and a research center.

PARTICIPANTS

Individuals with SCI (n=27) in 3 focus groups and clinical providers (n=25) in 3 focus groups.

INTERVENTIONS

Not applicable.

MAIN OUTCOME MEASURES

Not applicable.

RESULTS

Qualitative analysis indicated that all focus groups spent the highest percentage of time discussing symptoms of BPD (39%), followed by precipitators/causes of BPD (16%), preventative actions (15%), corrective actions (12%), and the impact that BPD has on social or emotional functioning (8%). While patient/consumer focus groups and provider focus groups raised similar issues, providers spent more time discussing precipitators/causes of BPD and preventative actions (38%) than patient/consumer groups (24%).

CONCLUSIONS

These results suggest that BPD uniquely and adversely impacts HRQOL in persons with SCI. While both individuals with SCI and their providers highlighted the relevant symptoms of BPD, the SCI providers offered additional detailed information regarding the precipitators/causes and what can be done to prevent/treat BPD. Further, the results suggest that persons with SCI are aware of how BPD impacts their HRQOL and are able to distinguish between subtle signs and symptoms. These findings exemplify the need for a validated and sensitive clinical measurement tool that can assess the extent to which BPD impacts HRQOL in patients with SCI.

A prospective examination of the impact of a supported employment program and employment on health-related quality of life, handicap, and disability among Veterans with SCI

PURPOSES

To investigate impact of participation in a supported employment program and impact of employment itself on health-related quality of life (HRQOL), disability, and handicap among Veterans with spinal cord injury (SCI).

METHODS

We used a prospective, randomized, controlled, multi-site trial of supported employment (SE) versus treatment as usual (TAU) for vocational issues. Subjects were 157 Veterans with SCI who received either SE or TAU for vocational issues. Outcomes were examined in terms of type of vocational treatment received and whether competitive employment was obtained. Outcomes investigated were HRQOL as measured by the Veterans RAND 36-item health survey (VR-36), handicap as measured by the Craig Handicap Assessment and Reporting Technique (CHART), and disability as measured by the functional independence measure (FIM). Subjects were assessed at baseline and at 3, 6, 9, and 12 months.

RESULTS

There were no significant differences between Veterans who participated in SE compared to those who received TAU in study measures. Participants obtaining competitive employment demonstrated significantly higher scores on the Social Integration, Mobility, and Occupation dimensions of the CHART. There were no observed differences in VR-36 scores or FIM scores for those obtaining competitive employment.

CONCLUSION(S)

This study suggests that employment has a positive effect on an individual's ability to participate in social relationships, move about their home and community, and spend time in productive and usual roles. Inability to detect differences across other domains of handicap or any changes in HRQOL may have been due to several factors including level and intensity of employment, insufficient follow-up period, or measurement limitations.

Developing a contemporary patient-reported outcomes measure for spinal cord injury

OBJECTIVE

To develop a spinal cord injury (SCI)-specific patient-reported outcome (PRO) measure of health-related quality of life (QOL) covering multiple domains of functioning, including physical, emotional, and social health.

DESIGN

Focus groups.

SETTING

Four SCI Model Systems rehabilitation hospitals.

PARTICIPANTS

Individuals with SCI (n=65) and clinicians (n=42).

INTERVENTIONS

Not applicable.

MAIN OUTCOME MEASURE

Spinal Cord Injury Quality of Life Measurement System (SCI-QOL).

RESULTS

Qualitative analysis yielded 3 domains of primary importance: physical-medical health, emotional health, and social participation. Results were used to guide domain and item decisions in the development of the SCI-QOL PRO measurement system. Qualitative data were used to develop item pools with item content specific to individuals with SCI across a wide spectrum of functioning. When possible, items from other major measurement initiatives were included verbatim in the item pools to link the measurement systems and facilitate cross-study and cross-population comparisons.

CONCLUSIONS

Issues that affect individuals' QOL after SCI are varied and several issues are unique to individuals who have had a traumatic injury. From these qualitative data, 3 major domains and 18 subdomains of functioning were identified. Item pools were developed in each of these 18 areas to measure functioning related to physical-medical issues, emotional status, and social participation.

The effects of a respiratory warm-up on the physical capacity and ventilatory response in paraplegic individuals

A respiratory warm-up (RWU) can improve exercise performance in able-bodied athletes. However, its effects in paraplegic individuals are unknown. On two occasions, nine male active paraplegic individuals performed an arm cranking test to exhaustion at 85% of their peak power output. In the intervention (INT) trial, this procedure was preceded by a RWU, whereas in the control (CON) trial, no RWU was conducted. Time to exhaustion was reduced following the RWU (CON vs. INT: 497 ± 163 vs. 425 ± 126 s, P = 0.02). Pulmonary ventilation was increased in the middle (74.8 ± 18.0 vs. 78.3 ± 19.6 L min(-1), P = 0.01) and end (86.1 ± 20.4 vs. 95.4 ± 23.3 L min(-1), P = 0.01) phase of exercise following the RWU. Forced expiratory volume in 1 s (FEV1) was reduced following the RWU (3.44 ± 0.45 vs. 3.27 ± 0.54 L, P = 0.02). The decrease in FEV1 following the RWU and the higher pulmonary ventilation during the INT trial suggest that the RWU fatigued the respiratory system, and hence reduced performance capacity. It is possible that the RWU used in this study is not suitable for paraplegic individuals, as their respiratory system is limited due to their disability. We conclude that a RWU impaired exercise performance in a group of active paraplegic individuals as a result of respiratory muscle fatigue.

Health-related quality of life among individuals with long-standing spinal cord injury: a comparative study of veterans and non-veterans

Background

Spinal cord-injured (SCI) patients experience poor health-related quality of life (HRQOL) and they usually report lower HRQOL than the general population or population subgroups in Iran and elsewhere. The aim of this study was to compare HRQOL between veterans and non-veterans with SCI in Iran.

Methods

This was a cross-sectional study. HRQOL was measured using the 36-item Short Form Health Survey (SF-36). Thirty-nine male veterans and 63 non-veteran males with SCI were included in the study. Regression analyses were applied to determine the variables affecting physical and mental health-related quality of life among the patients.

Results

The male veterans had a lower HRQOL than the non-veterans with SCI. The differences were significant for all measures except for physical and social functioning. The greatest difference was observed for bodily pain (P = 0.001). The regression analysis results indicated that a longer time since injury was associated (P = 0.01) with better physical health-related quality of life (PCS), while being a veteran (P < 0.001) and having a spinal lesion in the cervical region (P = 0.001) were associated with poorer PCS. Older age (P < 0.001) and higher education (P = 0.01) were associated with better mental health-related quality of life (MCS), while being a veteran and having a spinal lesion in the cervical region (P = 0.02) were associated with poorer MCS.

Conclusion

The study findings showed that veterans with SCI experienced lower HRQOL than their non-veteran counterparts. A qualitative study is recommended to evaluate why HRQOL was lower in veterans than in non-veterans with SCI although veterans had higher incomes as a result of their pensions and increased access to equipment, and medications. To improve quality of life in both veterans and non-veterans with spinal cord injuries, policy changes or implementation of new interventions may be essential so that veterans could receive additional support (e.g. counseling, recreation therapy, vocational therapy, etc.) and non-veterans could meet their basic needs.