Factors Associated with Attrition of Adult Participants in a Longitudinal Database: A National Institute on Disability, Independent Living, and Rehabilitation Research Burn Model System Study

Location, Payer Type, and Gender as Drivers of Burn Scar Reconstruction Utilization: A Burn Model Systems National Database Study

BACKGROUND

There are demographic and socioeconomic disparities in physical and psychosocial outcomes after burn injury. Here, we assess the demographic and geographic variation in utilization of burn scar reconstruction to assess if such barriers to these procedures may be contributing to disparities in outcomes.

METHODS

We performed a retrospective cohort study using prospectively collected data from adults enrolled in the Burn Model System National Database between 2015 and 2022. Undergoing burn scar reconstruction, defined as surgery for burn scars or laser scar revision, by 24 months after discharge was compared across age group (18-64 vs 65+ years), gender, race/ethnicity, payer type, and enrollment site. Multiple logistic regression was used to assess use of burn scar reconstruction by demographic characteristics while adjusting for presence of range of motion deficits at discharge, hand burn, head/neck burn, and upper arm/shoulder burn.

RESULTS

In the unadjusted analysis (N = 836), burn scar reconstruction use by 24 months differed by age group (<0.001), race/ethnicity (P = 0.014), payer type (P < 0.001), and enrollment site (P < 0.001). By multiple logistic regression (n = 717), burn scar reconstruction was associated with female sex (odds ratio [OR] 1.89, P = 0.002), workers' compensation (OR 3.41, P < 0.001), enrollment at site 1 or site 2 (OR 6.02, P < 0.001; OR 4.09, P < 0.001), hand burns (OR 2.35, P < 0.001), and upper arm/shoulder burns (OR 2.34, <0.001).

CONCLUSIONS

Location, payer type, and gender were primary drivers of burn scar reconstruction use after adjusting for burn characteristics. Geographic variability in burn scar reconstruction use may reflect less dependence on surgery to achieve favorable functional outcomes; however, these differences may represent barriers requiring further evaluation.

Higher energy delivery is associated with improved long-term survival among adults with major burn injury: A multicenter, multinational, observational study

BACKGROUND

Numerous feeding strategies have been used to mitigate the catabolism of major burn injury. Whether higher energy and/or protein delivery results in better long-term outcomes is unknown.

METHODS

We performed a secondary analysis of data from adults with major burn injuries enrolled in the Randomized Trial of Enteral Glutamine to Minimize the Effects of Burn Injury at 54 burn centers in 18 countries. The sample was restricted to those who were mechanically ventilated within 72 hours of injury and for ≥7 days. Our key exposure was adequacy of energy, and protein ([Delivered i /Prescribed i ] × 100) was categorized into three groups each: low, 0% to 50%; moderate, ≥50% to 79%; and high, ≥80%. We also analyzed adequacy using restricted cubic splines. Primary and secondary outcomes included 6-month mortality and functional outcomes (i.e., 36-Item Short-Form Health Survey, Katz Index of Independence in Activities of Daily Living, Lawton Activities of Daily Living scores), respectively. Regression models were adjusted for age, body mass index, Charlson Comorbidity Index, baseline Acute Physiology and Chronic Health Evaluation II and modified Sequential Organ Failure Assessment scores, burn size, energy/protein adequacy, and study site.

RESULTS

A total of 493 participants met the cohort restriction criteria; 336 participants were alive at 6 months. 36-Item Short-Form Health Survey, Katz Index of Independence in Activities of Daily Living, and Lawton Instrumental Activities of Daily Living Scale were completed by 218, 216, and 215 participants, respectively. The mean ± SD age was 48 ± 17 years, and 74% were male. The mean ± SD burn size was 41% ± 18% total body surface area. Participants who received 25% of recommended calories had nearly four times the hazard of death during the 6-month follow-up period than participants who received 100% of prescribed calories (adjusted hazard ratio, 3.89; 95% confidence interval, 1.35-11.20) ( p = 0.02). There was no significant association between protein and 6-month mortality or energy/protein delivery and 6-month functional outcomes.

CONCLUSION

There was a positive association between higher doses of energy and 6-month survival. This relationship conflicts somewhat with several energy studies among critically ill and non-burn-injured patients. The lack of consistent evidence on optimal nutrition for critically injured patients, a fundamental component of burn care, suggests potential for a randomized trial of lower versus higher energy to improve long-term outcomes after burn injury.

LEVEL OF EVIDENCE

Therapeutic/Care Management; Level III.

Predictors at 6 and 12 Months for Social Participation Outcome at 24 Months in the Adult Burn Injury Population: A Burn Model System National Database Study

OBJECTIVE

To identify clinical factors (physical and psychological symptoms and post-traumatic growth) that predict social participation outcome at 24-month after burn injury.

DESIGN

A prospective cohort study based on Burn Model System National Database.

SETTING

Burn Model System centers.

PARTICIPANTS

181 adult participants less than 2 years after burn injury (N=181).

INTERVENTIONS

Not applicable.

MAIN OUTCOME MEASURES

Demographic and injury variables were collected at discharge. Predictor variables were assessed at 6 and 12 months: Post-Traumatic Growth Inventory Short Form (PTGI-SF), Post-Traumatic Stress Disorder Checklist Civilian Version (PCL-C), Patient-Reported Outcomes Measurement Information System (PROMIS-29) Depression, Anxiety, Sleep Disturbance, Fatigue, and Pain Interference short forms, and self-reported Heat Intolerance. Social participation was measured at 24 months using the Life Impact Burn Recovery Evaluation (LIBRE) Social Interactions and Social Activities short forms.

RESULTS

Linear and multivariable regression models were used to examine predictor variables for social participation outcomes, controlling for demographic and injury variables. For LIBRE Social Interactions, significant predictors included the PCL-C total score at 6 months (β=-0.27, P<.001) and 12 months (β=-0.39, P<.001), and PROMIS-29 Pain Interference at 6 months (β=-0.20, P<.01). For LIBRE Social Activities, significant predictors consisted of the PROMIS-29 Depression at 6 months (β=-0.37, P<.001) and 12 months (β=-0.37, P<.001), PROMIS-29 Pain Interference at 6 months (β=-0.40, P<.001) and 12 months (β=-0.37, P<.001), and Heat Intolerance at 12 months (β=-4.55, P<.01).

CONCLUSIONS

Post-traumatic stress and pain predicted social interactions outcomes, while depression, pain and heat intolerance predicted social activities outcomes in people with burn injury.

Factors Associated with Self-Reported Voice Change in the Hospitalized Burn Population: A Burn Model System National Database Study

Voice plays a prominent role in verbal communication and social interactions. Acute burn care often includes intubation, mechanical ventilation, and tracheostomy, which could potentially impact voice quality. However, the issue of long-term dysphonia remains underexplored. This study investigates long-term self-reported voice changes in individuals with burn injuries, focusing on the impact of acute burn care interventions. Analyzing data from a multicenter longitudinal database (2015-2023), self-reported vocal changes were examined at discharge and 6, 12, 24, and 60 months after injury. Out of 582 participants, 65 reported voice changes at 12 months. Changes were prevalent at discharge (16.4%) and persisted over 60 months (11.6-12.7%). Factors associated with voice changes included flame burn, inhalation injury, tracheostomy, outpatient speech-language pathology, head/neck burn, larger burn size, mechanical ventilation, and more ventilator days (p < 0.001). For those on a ventilator more than 21 days, 48.7% experience voice changes at 12 months and 83.3% had received a tracheostomy. The regression analysis demonstrates that individuals that were placed on a ventilator and received a tracheostomy were more likely to report a voice change at 12 months. This study emphasizes the need to understand the long-term voice effects of intubation and tracheostomy in burn care.

Balance Impairment in the Burn Population: A Burn Model System National Database Study

Balance is an important component of daily function and impairments can lead to injury and quality-of-life limitations. Balance is not well studied in the burn population. This study examines the frequency of long-term balance impairments and associated factors after a burn injury. The Burn Model System National Database was analyzed. Trouble with balance was self-reported at discharge, 6, 12, 24, and 60 months after injury. Regression analyses examined the associations between demographic and clinical characteristics and balance impairments at 12 months. Of 572 participants, balance impairments were most reported at discharge (40.3%), continuing over 60 months (26.8-36.0%). Those reporting balance impairments (n = 153) were more likely to be older, unemployed, have Medicaid or Medicare, receive inpatient rehabilitation, receive outpatient physical or occupational therapy, have vision problems, have leg or feet burns and swelling, and have foot numbness compared to those without (p ≤ 0.001). Regression analysis demonstrated a 4% increased odds of balance impairment for every increase in year of age (p < 0.001), 71% lower odds if employed at time of injury (p < 0.001), and 140% higher odds if receiving outpatient physical or occupational therapy at 12 months (p = 0.008). Common reports of balance impairments highlight the need for routine screenings to identify burn survivors that may benefit from targeted interventions.

Psychiatric Illness and Substance Abuse: Unaddressed Factors in Burn Injury

Patients with psychiatric illness and substance use comorbidities have high rates of burn injuries and experience prolonged hospital admissions. This retrospective chart review characterizes this marginalized population's inpatient burn care and examines post-discharge outcomes compared to burn patients without psychiatric or substance use comorbidities treated at our center. Patients admitted to a single burn center from January 1, 2018 to June 1, 2022 were included. Patient demographics, history of psychiatric disorders, treatment course, and post-discharge outcomes were collected. A total of 1660 patients were included in this study, of which 91 (6%) patients were diagnosed for psychiatric comorbidity and/or substance use comorbidity on admission for burn care. In this cohort of 91 patients with psychiatric and/or substance use comorbidities, the majority of patients were undomiciled (66%) and male (67%). In this cohort, 66 (72%) patients reported recent history or had positive urine toxicology results for illicit substances on admission. In this cohort, a total of 25 (28%) patients had psychiatric comorbidity at the time of burn injury or admission and 69 (76%) patients received inpatient psychiatric care, with 31 (46%) patients requiring psychiatric holds. After discharge, the readmission rate within 1 year of patients with psychiatric and/or substance use comorbidity was over four times greater than that of patients without psychiatric and/or substance use comorbidity. The most common causes of readmission were subsequent mental health crisis (40%) and inability to perform burn care (32%). Our study presents strategies to improve burn care for this marginalized and high-risk population.

Psychological, functional and social outcomes in adolescent and young adult cancer survivors over time: A systematic review of longitudinal studies

Objective

Most adolescents and young adults (AYA) can expect to survive a cancer diagnosis and treatment, but all will be left with the potential of long‐term negative effects that can impact their ability to reach their full potential in life. Understanding aspects of psychological, functional, and social health and well‐being outcomes, is pivotal for optimising long‐term well‐being.

Methods

We completed a systematic review of longitudinal studies reporting outcomes after anti‐cancer treatment for Adolescents and Young Adults diagnosed between the age of 12–29 years according to established systematic review processes. The protocol was registered with PROSPERO (ID: CRD 42020203116).

Results

Thirteen reports from 10 studies met eligibility criteria representing 17,645 individuals (50.3% female, mean age at diagnosis 22 years, and 26 years at last, follow up). Eleven reports were from eight quantitative studies that relied on self‐report surveys and two were qualitative studies. Psychological outcomes were reported to improve over time, as were functional health outcomes, although reported health behaviours were inconsistent between studies. Neurocognitive deficits were reported to affect the ability to return to work and impacts on fertility and sexuality were sustained over time.

Conclusions

While some outcomes for AYA are reported to improve over time, particularly for physical functioning, and anxiety and depression, the long‐term impact of cancer on many important domains remains largely unknown. Specifically, the evidence to understand what changes occur over time, and when, remains underdeveloped.

Adolescents and young adults have a long time to live as survivors of cancer, and the negative effects of disease and treatment can compromise long‐term well‐being

Longitudinal research is important for understanding changes in outcomes over time

While a wide range of outcomes have been studied, the evidence to understand what changes occur and when remains underdeveloped

The relation between satisfaction with appearance and race and ethnicity: A National Institute on Disability, Independent Living, and Rehabilitation Research burn model system study

Research supports that people of color in the U.S. have poorer outcomes after burn injury compared to White individuals. The current study sought to explore burn health disparities by testing the relationship between racial and ethnic minority status, a proxy for systemic discrimination due to race and ethnicity, with two key constructs linked to functional outcomes, satisfaction with appearance and social community integration. Participants included 1318 burn survivors from the Burn Model System National Database (mean age = 40.2, SD = 12.7). Participants completed measures of satisfaction with appearance and social community integration at baseline, 6-, 12-, and 24-months after burn injury. Linear regressions revealed that racial and ethnic minority status significantly related to lower satisfaction with appearance and social community integration compared to White individuals at all time points. In addition, satisfaction with appearance continued to significantly relate to greater social community integration even while accounting for race and ethnicity, age, sex, burn size, and physical disability at 6-, 12-, and 24-month time points. Overall, the study supports that racial and ethnic minority burn survivors report greater dissatisfaction with their appearance and lower social community reintegration after burn injury.

Adolescents with and without head and neck burns: comparison of long-term outcomes in the burn model system national database

INTRODUCTION

Facial burns account for persistent differences in psychosocial functioning in adult burn survivors. Although adolescent burn survivors experience myriad chronic sequelae, little is known about the effect of facial injuries. This study examines differences in long-term outcomes with and without head and neck involvement.

METHODS

Data collected for 392 burn survivors between 14-17.9 years of age from the Burn Model System National Database (2006-2015) were analyzed. Comparisons were made between two groups based on presence of a head and neck burn (H&N) using the following patient reported outcome measures: Satisfaction with Appearance Scale, Satisfaction with Life Scale, Community Integration Questionnaire, and Short Form-12 Health Survey at 6, 12, and 24 months after injury. Regression analyses were used to assess association between outcome measures and H&N group at 12-months.

RESULTS

The H&N group had more extensive burns, had longer hospital stays, were more likely to be burned by fire/flame and were more likely to be Hispanic compared to the non-H&N group. Regression analysis found that H&N burn status was associated with worse SWAP scores. No significant associations were found between H&N burn status and other outcome measures.

CONCLUSIONS

Adolescents with H&N burn status showed significantly worse satisfaction with appearance at 12-months after injury. Future research should examine interventions to help improve body image and coping for adolescent burn survivors with head and neck burns.

Early Laser for Burn Scars (ELABS): protocol for a multi-centre randomised, controlled trial of both the effectiveness and cost-effectiveness of the treatment of hypertrophic burn scars with Pulsed Dye Laser and standard care compared to standard care alone [version 1; peer review: 2 approved]

This paper outlines the protocol for a study that is being carried out at multiple centres across the UK in the next three years. It is a Research for Patient Benefit (RfPB) study funded by the National Institute for Healthcare Research (NIHR). The aim is to assess the effectiveness of treating hypertrophic burns scars with pulsed dye laser (PDL) at an early stage of scar formation. The objective is to improve Quality of Life for the patient by improving both the appearance and quality of burn scarring, as well as reducing its psychological impact. This is a parallel-arm randomised, controlled trial to compare PDL and standard care against standard care alone. The difference is measured between baseline and six-month follow-up. Recruits are within three months of healing from a burn injury; with wounds showing a defined potential for hypertrophic scarring. A total of 120 patients are recruited in a multi-centre study; with randomisation in a 1:1 allocation to each arm. The treatment arm receives 3 PDL treatments at six-week intervals in addition to standard care, whereas the control arm receives standard care alone. The primary outcome is the patient-rated part of the Patient and Observer Scar Scale (POSAS). Psychological and psycho-social impact is evaluated using the CARe burn scale (UWE, Bristol) and Quality Adjusted Life Years (QALY) is determined using the Short-Form Health Survey (SF-12). The study evaluates both the cost-effectiveness through an economic analysis and the patient-reported experience of the treatment by phone interviews.

Improving retention of community-recruited participants in HIV prevention research through Saturday household visits; findings from the HPTN 071 (PopART) study in South Africa

BACKGROUND

Identifying successful strategies to improve participant retention in longitudinal studies remains a challenge. In this study we evaluated whether non-traditional fieldworker shifts (after hours during the week and weekends) enhanced participant retention when compared to retention during traditional weekday shifts in the HPTN 071 (PopART) population cohort (PC).

METHODS

HPTN 071 (PopART) PC participants were recruited and followed up in their homes on an annual basis by research fieldworkers over a 3-4 year period. The average number of successful follow-up visits, where a PC participant was found and retained in the study, was calculated for each of 3 visit schedules (early weekday shift, late weekday shift, and Saturday shift), and standardized to account for variation in fieldwork shift duration. We used one-way univariate analysis of variance (ANOVA) to describe differences in mean-successful visits and 95% confidence intervals between the shift types.

RESULTS

Data on 16 651 successful visits were included. Successful visit rates were higher when conducting Saturday visits (14.0; 95% CI: 11.3-16.6) compared to both regular (4.5; 95% CI: 3.7-5.3) and late weekday shifts (5.3; 95% CI: 4.7-5.8) overall and in all subgroup analyses (P<0.001). The successful visit rate was higher amongst women than men were during all shift types (3.2 vs. 1.3, p<0.001). Successful visit rates by shift type did not differ significantly by age, over time, by PC round or by community triplet.

CONCLUSION

The number of people living with HIV continues to increase annually. High quality evidence from longitudinal studies remains critical for evaluating HIV prevention and treatment strategies. This study showed a significant benefit on participant retention through introduction of Saturday shifts for home visits and these data can make an important contribution to the emerging body of evidence for improving retention in longitudinal research.

TRIAL REGISTRATION

PopART was approved by the Stellenbosch University Health Research Ethics Committees (N12/11/074), London School of Hygiene and Tropical Medicine (6326) ethics committee and the Division of AIDS (DAIDS) (Protocol ID 11865). PopART was registered with ClinicalTrials.gov (registration number NCT01900977 ).

Understanding loss to follow-up in a longitudinal study of people with traumatic brain injury

OBJECTIVE

To examine factors related to attrition in a traumatic brain injury (TBI) study sample assessed up to 15 years after injury.

PARTICIPANTS

One thousand twenty-eight participants with TBI who completed the year 1 follow-up assessment at a TBI Model Systems Center between 1992 and 2018.

METHOD

Secondary analysis of data from a prospective longitudinal cohort study considering follow-up data collection completion status at years 1, 2, 5, 10, and 15.

RESULTS

In univariable analyses, multiple factors were associated with loss to follow-up (LOFU) including being a member of a socially disadvantaged group, substance use history, residence, payor, cause of injury, and results of earlier follow-up attempts. In a multiple logistic regression analysis examining the prediction of follow-up condition at 10 or 15 years post-injury, only payor and race/ethnicity were significant predictors. Hispanic ethnicity was associated with higher odds of LOFU, and these participants often spoke Spanish and were born outside of the United States.

CONCLUSIONS

The findings suggest a need to understand sociodemographic variables and their influence on participant attrition in longitudinal TBI research. With a better understanding of these predictors, procedures can be developed to address retention of participants who are identified as being at increased risk for study drop out.

Stability in Personality After Physical Trauma

Personality trait stability may be influenced by several factors, there among different life events such as psychological trauma. However, little is known regarding trait stability after physical trauma. Therefore, our primary aim was to assess the extent of stability in personality in burn patients during the first year after injury. Eighty-four burn patients, admitted to a national burn center, were assessed with the Swedish universities Scales of Personality during acute care and 12 months postburn. Personality domain scores remained stable between acute care and 12 months postburn. On the trait level, the only change was seen in personality trait Stress Susceptibility, where burn patients' scores were lower compared with norm scores during acute care but then increased, and normalized, at 12 months postburn. To conclude, personality scores remained relatively stable during the first year after burn trauma.

Burn model system national longitudinal database representativeness by race, ethnicity, gender, and age

INTRODUCTION

Representativeness of research populations impacts the ability to extrapolate findings. The Burn Model System (BMS) National Database is one of the largest prospective, longitudinal, multi-center research repositories collecting patient-reported outcomes after burn injury.

OBJECTIVE

To assess if the BMS Database is representative of the population that is eligible to participate.

DESIGN

Data on adult burn survivors who were eligible for the BMS Database from 2015 to 2019 were analyzed.

SETTING

Not applicable.

PARTICIPANTS

Burn survivors treated at BMS centers meeting eligibility criteria for the BMS Database. Eligibility for the database is based on burn size and receipt of autografting surgery.

INTERVENTIONS

Not applicable.

MAIN OUTCOME MEASURE(S)

Race, ethnicity, gender, and age were compared between individuals who did and did not enroll. Regression analysis examined the correlation between demographic characteristics and study enrollment. Additional regression analysis examined the association between enrollment and the intersection of race, ethnicity, and gender.

RESULTS

A total of 982 adult burn survivors were eligible for the BMS database during the study period. Of those who were eligible, 72.1% Enrolled and 27.9% were Not Enrolled. The Enrolled group included more female and more younger survivors compared to the Not Enrolled group. In regression analyses, Black/African American burn survivors were less likely and individuals identifying as female were more likely to enroll in the BMS Database. Furthermore, White men and women were more likely to enroll compared to Black/African American men and women, and non-Hispanic/Latino men were more likely to enroll compared to Hispanic/Latino men.

CONCLUSIONS

This study found differences in BMS Database enrollment by race, ethnicity, and gender. Further research is warranted to investigate causes for the disparities found in this study. In addition, strategies are needed to improve enrollment to ensure future representativeness.

Correlates related to follow-up in a community engagement program in North Central Florida

AIMS

This analysis identifies the correlates of 60- and 120-day telephone-based study follow-ups among community-dwelling adults in North Central Florida.

METHODS

Six thousand three hundred and forty participants were recruited by Community Health Workers from the University of Florida's community engagement program with a face-to-face baseline and two phone follow-ups assessing indicators of health.

RESULTS

Physical disability versus none (adjusted odds ratio [aOR], 1.5; 95% confidence interval [CI], 1.2─1.9), high trust in research versus none (aOR, 1.5; 95% CI, 1.1─2.1), history of research participation versus none (aOR, 1.6; 95% CI, 1.3─2.0), having health insurance versus none (aOR, 1.4; 95% CI, 1.1─1.7), interest in research participation versus none (aOR, 1.8; 95% CI, 1.3─2.7), and no drug use versus drug use (aOR, 0.5; 95% CI, 0.3─0.9) significantly predicted completion of follow-up.

CONCLUSIONS

Health and social factors such as disability, insurance, history of and interest in research, trust and no drug use significantly predicted completing two follow-ups. These findings can facilitate efforts to minimize attrition in the research enterprise.