Publications by authors named "Esther Ngan"

Objective: To characterize health literacy among individuals with traumatic brain injury (TBI) at least a year postinjury and to explore its relationship to sociodemographic variables, injury severity, and cognition.

Setting: Community following discharge from inpatient rehabilitation.

Participants: In total, 205 individuals with complicated mild to severe TBI who completed follow-up as part of a national longitudinal study of TBI and completed a web-based health literacy measure.

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Aim: This pilot study's aim was to determine the feasibility of examining the effects of an environmental variable (i.e., tree canopy coverage) on mental health after sustaining a brain injury.

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Objective: To assess the clinical impact of diagnostic musculoskeletal (MSK) injections on treatment decision-making in adolescent and adult patients at a children's hospital.

Materials And Methods: Retrospective study in patients who underwent diagnostic MSK injections by fluoroscopy or ultrasound (US) between 8/2020 and 3/2023 at a children's hospital. Patients received ropivacaine and triamcinolone acetonide at pain site, reporting quantitative FACES pain score prior to, immediately following, and 2-3 days following injection.

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Objective: To examine the associations between health literacy and health outcomes among individuals with traumatic brain injury (TBI) at least a year post-injury.

Setting: Community following discharge from inpatient rehabilitation.

Participants: A total of 205 individuals with complicated mild to severe TBI who completed a TBI Model Systems National Database follow-up interview and a web-based health literacy measure.

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With the large ongoing number of aged people and Alzheimer's disease (AD) patients worldwide, unpaid caregivers have become the primary sources of their daily caregiving. Alzheimer's family caregivers often suffer from physical and mental morbidities owing to various reasons. The aims of this paper were to develop alternate methods to understand the transition properties, the dynamic change, and the long-run behavior of AD caregivers' stress levels, by assuming their transition to the next level only depends on the duration of the current stress level.

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Objective: To investigate catastrophizing and self-efficacy for managing pain among Non-Hispanic Whites, Non-Hispanic Blacks, and Hispanics with chronic pain after traumatic brain injury (TBI), and whether coping interacts with race/ethnicity to predict participation outcomes.

Setting: Community after discharge from inpatient rehabilitation.

Participants: 621 individuals with moderate to severe TBI and chronic pain, who completed follow-up as part of a national longitudinal study of TBI and also participated in a collaborative study on chronic pain.

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Objective: To determine disparities in pain severity, pain interference, and history of pain treatment for non-Hispanic Whites, non-Hispanic Blacks, and Hispanics with traumatic brain injury (TBI) and chronic pain.

Setting: Community following discharge from inpatient rehabilitation.

Participants: A total of 621 individuals with medically documented moderate to severe TBI who had received acute trauma care and inpatient rehabilitation (440 non-Hispanic Whites, 111 non-Hispanic Blacks, and 70 Hispanics).

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Objective: To identify key variables that could predict risk of loss to follow-up (LTFU) in a nationally funded longitudinal database of persons with traumatic brain injury.

Design: Secondary analysis of a prospective longitudinal cohort study.

Setting: Traumatic Brain Injury Model System (TBIMS) Centers in the US.

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Article Synopsis
  • Chronic wounds can make people feel worse and cost a lot to treat in hospitals.
  • A study was done on patients who received special nutritional support along with regular care to see if it helped their wounds heal faster.
  • The results showed that patients who got this extra nutrition had much bigger improvements in their wounds compared to those who only had regular hospital food.
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Traumatic brain injury (TBI) can cause changes to the injured person's physical ability, cognitive functioning, and social interactions. Since these attributes largely determine a person's concept of who they are, TBI poses a threat to sense of self. Due to the importance of social communication skills for community integration, impairment of these skills is a particular threat to sense of self.

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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.

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Objective: To determine clinically meaningful subgroups of persons with traumatic brain injury (TBI) who have failed performance validity testing.

Method: Study participants were selected from a cohort of 674 participants with definitive medical evidence of TBI. Participants were those who failed performance validity testing (the Word Memory Test, using the standard cutoffs).

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Psychological distress is common in persons with traumatic brain injury (TBI) but treatments remain underdeveloped. This randomized controlled trial of Acceptance and Commitment Therapy (ACT) was designed to address this gap. Ninety-three persons with medically-documented complicated mild to severe TBI, normal-to-mildly impaired memory, and clinically significant psychological distress in the chronic phase of recovery were randomized to receive eight weeks of ACT (manualized with adaptations to address TBI-related cognitive impairments) or a single session of needs assessment, brief counseling/education, and referral.

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Objective: To better identify variables related to discrepancies between subjective cognitive complaints and objective neuropsychological findings in persons with traumatic brain injury (TBI).

Setting: Three rehabilitation centers in the United States.

Participants: In total, 504 community-dwelling adult survivors of TBI following discharge from inpatient rehabilitation.

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: To determine how resilience is associated with social participation outcomes in persons with traumatic brain injury (TBI), in the context of emotional distress, demographics, and injury-related factors.: Individuals with a history of TBI recruited the following stay at three rehabilitation facilities in the USA.: 201 community-dwelling persons with medically documented TBI ranging in severity from mild to severe.

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This study sought to determine the similarity of constructs measured by the Neurobehavioral Symptom Inventory (NSI) and Rivermead Postconcussive Symptoms Questionnaire (RPQ) and the potential for interchangeability of scores from the two scales. Three acute inpatient rehabilitation hospitals in the USA. 497 community dwelling persons with traumatic brain injury (TBI) who completed the NSI and the RPQ during the same assessment.

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Objective: The first aim of this study was to develop a Rasch-based crosswalk between 2 postconcussive symptom measures, the Neurobehavioral Symptom Inventory (NSI) and the Rivermead Postconcussive Symptom Questionnaire (RPQ). The second goal was to utilize Rasch analysis to formulate a new proposed scale containing the best theoretical and psychometric items.

Design: Prospective cohort observational study.

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Objective: Due to limited systematic research on gender differences in health and quality of life outcomes following traumatic brain injury (TBI), the present study sought to contribute to the growing literature on gender differences in postinjury employment while also adding an examination of postinjury economic quality of life, an emerging area in disability research.

Method: Independent variables included demographic and injury characteristics. Outcome variables included postinjury employment and economic quality of life, measured by the Participation Assessment With Recombined Tools-Objective and the Economic QOL, respectively.

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The objective of this study was to assess the validity of the self-/home-measured waist circumference (WC) method in children/adolescents at three sites: at the level of the umbilicus, immediately above the iliac crest, and at the midpoint of the lower margin of the last palpable rib and top of the iliac crest. A cross-sectional study of 3360 Hong Kong Chinese children/adolescents was conducted, with 2980 (88.7%) participants included in the final analysis.

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Objective: To assess the responsiveness of the Traumatic Brain Injury-Quality of Life (TBI-QOL) measurement system.

Design: Participants completed the 20 TBI-QOL item banks and the Participation Assessment with Recombined Tools-Objective (PART-O) Productivity Subscale at baseline and 6-month follow-up assessments. Participants were categorized into 4 groups (increased productivity, unchanged productivity, and decreased productivity) based on PART-O Productivity scores.

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Objectives: To investigate the factor structure of the Everyday Memory Questionnaire (EMQ) in persons with traumatic brain injury (TBI).

Method: This was a secondary analysis of baseline data from two clinical trials targeting memory impairment after TBI. Participants were 169 persons with complicated mild, moderate, or severe TBI at an average of 41 months post-injury.

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Objective: To determine the factor structure of the Traumatic Brain Injury-Quality of Life (TBI-QOL) measurement system.

Design: Observational.

Setting: 3 TBI Model Systems rehabilitation centers.

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Objective: To (1) identify groupings of persons with traumatic brain injury (TBI) in the posthospital period in a cohort recruited in Australia; (2) compare groupings from the Australian cohort to groupings previously developed for a US cohort.

Setting: Rehabilitation centers in the US and Australia.

Participants: A total of 170 persons with TBI from Australia and 504 persons with TBI from the United States.

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