Biomedical subjects

Thomas R Belin

Publications and source records attributed to Thomas R Belin.

17 recordsLinked to original sources

PubMed2006

Psychosocial impacts of a camping experience for children with cancer and their siblings.

BACKGROUND: We conducted a prospective two-group evaluation of pediatric cancer patients and their siblings regarding experiences and affective changes resulting from a 1-week summer camp experience. METHODS: The patients and siblings were assessed prior to camp (Baseline), at the end of camp (Follow-up 1), and again 4-6 months later (Follow-up 2). Assessments included standardized tests for depressive affects, social competency, and a measure of pleasure and participation in camp activities. RESULTS: Sixty-six children were assessed, including 31 (47%) patients and 35 (53%) siblings. Ages ranged from 7 to 17 years. Of the patient campers 19 (61%) had leukemia or lymphoma and 12 (39%) had solid tumors. Results showed marked changes in affective symptoms for patient campers over time (improvements), not shown by sibling campers. For patient campers these affective changes were not present immediately after camp, but were quite significant when measured 4-6 months later. Both patient and sibling campers reflected the same positive memories and pleasure in camp activities over time. For neither group did memories or pleasure fade over time. The camping experience did not have differential impacts on first time versus returning campers. Twelve campers (18% of sample) indicated suicidal ideation on the measure of depressive affects. They did well at camp and presented no special management issues. CONCLUSION: Expectations appear substantially different for patient versus sibling campers. The camping experience appeared to impact these groups differently, with patient campers impacted in ways not experienced by sibling campers.

Adolescent↗

PubMed2005

A comparison of imputation methods in a longitudinal randomized clinical trial.

It is common for longitudinal clinical trials to face problems of item non-response, unit non-response, and drop-out. In this paper, we compare two alternative methods of handling multivariate incomplete data across a baseline assessment and three follow-up time points in a multi-centre randomized controlled trial of a disease management programme for late-life depression. One approach combines hot-deck (HD) multiple imputation using a predictive mean matching method for item non-response and the approximate Bayesian bootstrap for unit non-response. A second method is based on a multivariate normal (MVN) model using PROC MI in SAS software V8.2. These two methods are contrasted with a last observation carried forward (LOCF) technique and available-case (AC) analysis in a simulation study where replicate analyses are performed on subsets of the originally complete cases. Missing-data patterns were simulated to be consistent with missing-data patterns found in the originally incomplete cases, and observed complete data means were taken to be the targets of estimation. Not surprisingly, the LOCF and AC methods had poor coverage properties for many of the variables evaluated. Multiple imputation under the MVN model performed well for most variables but produced less than nominal coverage for variables with highly skewed distributions. The HD method consistently produced close to nominal coverage, with interval widths that were roughly 7 per cent larger on average than those produced from the MVN model.

Aged↗

PubMed2005

Depression prevalence in disadvantaged young black women--African and Caribbean immigrants compared to US-born African Americans.

BACKGROUND: Research with Mexican Americans suggests that immigrants have lower rates of mental disorders than U. S.-born Mexican Americans. We examine the prevalence of depression, somatization, alcohol use and drug use among black American women, comparing rates of disorders among U. S.-born, Caribbean-born, and African-born subsamples. METHODS: Women in Women, Infants and Children (WIC) programs, county-run Title X family planning clinics, and low-income pediatric clinics were interviewed using the PRIME-MD. In total, 9,151 black women were interviewed; 7,965 were born in the U. S., 913 were born in Africa, and 273 were born in the Caribbean. RESULTS: Controlling for other predictors, U.S.-born black women had odds of probable depression that were 2.94 times greater than the African-born women (p<0.0001, 95% CI: 2.07, 4.18) and 2.49 times greater than Caribbean-born women (p<0.0016, 95% CI: 1.41, 4.39). Likelihood of somatization did not differ among women who were U. S. born, African born, or Caribbean born. Rates of alcohol and drug problems were exceedingly low among all three groups, with less than 1% of the women reporting either alcohol or drug problems. CONCLUSIONS: These results mirror similar findings for Mexican immigrant as compared with American-born Mexican Americans. The findings suggest that living in the U. S. might increase depression among poor black women receiving services in county entitlement clinics. Further research with ethnically validated instruments is needed to identify protective and risk factors associated with depression in immigrant and U. S.-born poor black women.

Adult↗

PubMed2005

A qualitative report of patient problems and postoperative instructions.

PURPOSE: While surgery related stress may interfere with the patient's ability to concentrate on instructions, language difficulty or low health literacy may also impede appropriate doctor/patient communication. The purpose of this study is to understand from a sample of minority patients the types of problems encountered during healing and the level of information regarding elements of postoperative instructions they recalled receiving at an inner-city safety net hospital. We initiated a qualitative study to understand the care sequence process and provision of informed consent and postoperative instruction. METHODS: African American or Latino patients, 18 years of age or older, who had third molars removed under general anesthesia or received treatment for a mandibular fracture were recruited to participate in a focus group to discuss their treatment. Patients described their problem and any informed consent given about treatment risks and benefits and postoperative information they recalled. RESULTS: A total of 137 former patients were approached, 57 agreed to participate (42%) and 34 of those (60%) completed the interview. Subjects included 14 females and 20 males. Five categories of patient problems were reported: physical, eating, treatment-related, psychosocial, and other problems. People reported 5 categories of coping strategies: medication use, physical treatments, dietary solutions, rest, and clinical assistance. Twenty people recalled being given informed consent, and 5 participants recalled no elements of informed consent. Overall, 14 participants recalled elements of postoperative instruction. CONCLUSION: Gaps in patient understanding of postoperative care suggest room for improvement in postoperative instructions. Additional research is necessary to design and test high-quality postoperative instructions for surgical treatment and recovery in populations with limited health related literacy.

Adaptation, Psychological↗

PubMed2005

Comparison of psychiatrists' and other physicians' assessments of their ability to deliver high-quality care.

OBJECTIVE: This study compared psychiatrists' assessments of their ability to deliver high-quality care with those of other physicians. METHODS: Data were used from the Community Tracking Study Physician Survey, a national survey of 12,528 physicians. Linear regression models were used to investigate the effects of type of physician (psychiatrist or other physician), managed care involvement, and ability to obtain inpatient care on four measures of physicians' assessments of quality. RESULTS: In models that did not control for difficulty in obtaining inpatient services, assessments of quality were significantly lower among psychiatrists than among other physicians. Furthermore, although managed care involvement was associated with lower assessments of quality for all physicians in these models, the effects were stronger for psychiatrists than for other physicians. However, after difficulty in obtaining inpatient services was controlled for, psychiatrists' and other physicians' assessments of quality were similar. CONCLUSIONS: Compared with other physicians, psychiatrists' assessments of the quality of care that they provide were lower and their assessments were more influenced by involvement with managed care. These differences may be mediated by difficulty in obtaining inpatient services. When designing and administering behavioral health benefits packages, clinical policy makers should consider the possible effects of reduction in inpatient services on quality of care.

Attitude of Health Personnel↗

PubMed2004

Imputation for incomplete high-dimensional multivariate normal data using a common factor model.

It is common in applied research to have large numbers of variables measured on a modest number of cases. Even with low rates of missingness on individual variables, such data sets can have a large number of incomplete cases. Here we present a new method for handling missing continuously scaled items in multivariate data, based on extracting common factors to reduce the number of covariance parameters to be estimated in a multivariate normal model. The technique is compared in several simulation settings to available-case analysis and to a multivariate normal model with a ridge prior. The method is also illustrated on a study with over 100 variables evaluating an emergency room intervention for adolescents who attempted suicide.

Humans↗

PubMed2004

Quality of life at the end of primary treatment of breast cancer: first results from the moving beyond cancer randomized trial.

BACKGROUND: During the last decade, survival rates for breast cancer have increased as a result of earlier detection and increased use of adjuvant therapy. Limited data exist on the psychosocial aspects of the transitional period between the end of primary treatment and survivorship. We investigated the baseline psychosocial status of women enrolled in a randomized trial testing two psychosocial interventions for women at the end of primary treatment. METHODS: Participants, identified within 1 month after surgery (registration), provided demographic information and limited measures of quality of life. They were followed until they finished primary treatment (enrollment), at which time they completed a mailed baseline survey that included standardized measures of quality of life (including standardized scales of physical and emotional functioning), mood, symptoms, and sexual functioning. A total of 558 patients (mean age = 56.9 years) were enrolled in the study between July 1, 1999, and June 30, 2002. Health outcomes were examined according to treatment received: mastectomy with and without chemotherapy, and lumpectomy with and without chemotherapy. All statistical tests were two-sided. RESULTS: Among all treatment groups, patients who had a mastectomy had the poorest physical functioning at registration (P<.001) and at enrollment (P=.05). At enrollment, mood and emotional functioning were similar among all patients, with no differences by type of treatment received. At enrollment, symptoms, including muscle stiffness, breast sensitivity, aches and pains, tendency to take naps, and difficulty concentrating, were common among patients in all groups and were statistically significantly associated with poor physical functioning and emotional well-being. Sexual functioning was worse for women who received chemotherapy than for those who did not, regardless of type of surgery (P<.001). CONCLUSIONS: At the end of primary treatment for breast cancer, women in all treatment groups report good emotional functioning but report decreased physical functioning, particularly among women who have a mastectomy or receive chemotherapy. Clinical interventions to address common symptoms associated with treatment should be considered to improve physical and emotional functioning at the end of primary treatment for breast cancer.

Adult↗

PubMed2004

Psychologic functioning and needs of indigent patients with facial injury: a prospective controlled study.

PURPOSE: This study sought to examine 1) temporal changes in psychologic functioning over 12 months and 2) baseline differences in mental health and social service needs between orofacial injury patients and sociodemographically comparable controls undergoing elective oral surgery. MATERIALS AND METHODS: Prospective, case-control study of patients treated at a public hospital in Los Angeles, CA. A total of 336 subjects with mandible fractures and 119 subjects undergoing elective removal of their third molars participated in structured, repeated follow-up assessments (10 days, 6 months, and 12 months after their surgical procedures). Multiple imputation was used to manage incomplete data, and propensity score analysis was used to correct for covariate imbalances between the injury and the control cohort. A series of ANOVAs, chi(2) analyses, and odds ratios was conducted. RESULTS: The injury patients continue to experience significant psychologic distress for up to 12 months following the traumatic event. Orofacial injury patients also tend to report more lifetime and current mental health and social service needs than the sociodemographically similar elective-surgery cohort. CONCLUSION: The management of facial injuries in disadvantaged individuals should integrate case management that addresses psychosocial sequelae and service needs of patients.

Adult↗

PubMed2003

Determinants of surgical decisions about mandible fractures.

PURPOSE: The study goal was to explore contextual patient- and surgeon-related characteristics that influence the perception of injury severity and treatment strategy for mandible fractures. METHODS: After reviewing plain radiographs of 22 patients with mandible fractures, 18 oral and maxillofacial surgeons were queried on summary severity ratings and treatment decisions for each injury. Subsequently, they were asked to indicate how various hypothetical fracture and patient-specific factors would alter their perception of injury severity and original treatment recommendations. The effect of the level of clinician trauma expertise on perception of injury severity and treatment choice was also assessed. RESULTS: Each of the fracture-specific characteristics-number of constituent fractures, fracture complexity, degree of displacement, and summary injury severity-influenced the choice of treatment modality. Surgeon-specific characteristics were related to both perception of injury severity and treatment choice. Although clinicians with greater trauma loads tended to provide higher summary severity ratings for the same range of injuries (P <.001), they appeared to recommend maxillomandibular fixation for a much broader spectrum of injury severity (R = -0.42). Surgeons' perception of injury severity appeared to escalate with increasing damage to the soft tissue envelope; the influence of patient-related risk factors was less distinct. More than half of the surgeons suggesting maxillomandibular fixation for a particular case changed their treatment recommendation to rigid internal fixation on learning that the patient was noncompliant. CONCLUSIONS: Clinical decision making for mandible fractures is not a precise and fully reliable activity. Contextual factors (fracture, patient, and surgeon related) appear to influence the clinical decision and may be responsible for the existing variations in practice patterns.

Analysis of Variance↗

PubMed2003

The development of acute post-traumatic stress disorder after orofacial injury: a prospective study in a large urban hospital.

PURPOSE: Psychologic distress is a common outcome among trauma survivors. This report examines both the development and predictors of acute post-traumatic stress disorder (PTSD) symptoms in a sample of US inner-city orofacial trauma survivors seeking treatment in a publicly funded hospital. PATIENTS AND METHODS: Baseline data were collected from 336 patients seeking urgent care for an oral injury (mandibular or midfacial fracture). Participants were predominantly unemployed, unmarried, African American or Hispanic men in their 30s. One-month follow-up assessments of PTSD symptoms were conducted on the available 84% of the sample. RESULTS: Absolute levels of PTSD symptoms were high at 1 month; 25% of the sample appeared to meet diagnostic criteria for acute PTSD, based on a self-report of symptoms. Variables associated with self-reports of higher rates of PTSD symptoms included older age, being female, prior psychologic disturbance as reflected in lifetime and current mental health and social service need and use, exposure to and distress at a prior trauma as well as overall high rates of stressful life events in the past year, injury pain, psychologic distress at hospital discharge, and unmet social support needs during the recovery phase. CONCLUSIONS: A substantial subsample of these traumatized medical patients had negative psychologic outcomes at 1 month. Results underscore the potential use of screening survivors of orofacial injury at urban trauma centers for PTSD and developing systems of care that facilitate referral to appropriate psychologic treatment.

Adolescent↗

PubMed2003

Physician performance assessment: nonequivalence of primary care measures.

BACKGROUND: Assessment of the performance of primary care physicians requires multiple, reliable measures. This article explores the appropriateness of selected Health Plan Employer Data and Information Set (HEDIS) measures, developed to assess health plans, to assess individual physician performance. OBJECTIVES: To determine the consistency and reliability of 4 measures of primary care physician performance measures: cancer screening, diabetic management, patient satisfaction, and ambulatory costs. METHODS: The study population consisted of all 194 family practitioners and general internists providing ambulatory services in 1998 to a defined patient panel of 320,000 adult health maintenance organization members. Administrative data on physician practice and performance were assessed with multiple regression and analysis of variance. RESULTS: Each performance measure was significantly related to 1 or 2 of the other measures: high cancer screening rates with good diabetic management and high patient satisfaction, good diabetic management with high cancer screening rates, high patient satisfaction with high cancer screening rates and high ambulatory costs, or high ambulatory costs with higher patient satisfaction. Although 76% of the physicians ranked in the highest third for at least 1 measure, 81% of these high performers ranked in the lower third for at least 1 other measure. Three percent of physicians ranked exclusively in the top or bottom third on all measures. CONCLUSIONS: Care should be taken in assessing physicians based on narrow performance measures. Assessments of individual physicians with current performance measures might identify areas in which improvement is needed and to provide feedback to improve performance quality and efficiency. However, assumptions should not be made from one measure of performance to another.

Adult↗

PubMed2002

Collaborative care management of late-life depression in the primary care setting: a randomized controlled trial.

CONTEXT: Few depressed older adults receive effective treatment in primary care settings. OBJECTIVE: To determine the effectiveness of the Improving Mood-Promoting Access to Collaborative Treatment (IMPACT) collaborative care management program for late-life depression. DESIGN: Randomized controlled trial with recruitment from July 1999 to August 2001. SETTING: Eighteen primary care clinics from 8 health care organizations in 5 states. PARTICIPANTS: A total of 1801 patients aged 60 years or older with major depression (17%), dysthymic disorder (30%), or both (53%). INTERVENTION: Patients were randomly assigned to the IMPACT intervention (n = 906) or to usual care (n = 895). Intervention patients had access for up to 12 months to a depression care manager who was supervised by a psychiatrist and a primary care expert and who offered education, care management, and support of antidepressant management by the patient's primary care physician or a brief psychotherapy for depression, Problem Solving Treatment in Primary Care. MAIN OUTCOME MEASURES: Assessments at baseline and at 3, 6, and 12 months for depression, depression treatments, satisfaction with care, functional impairment, and quality of life. RESULTS: At 12 months, 45% of intervention patients had a 50% or greater reduction in depressive symptoms from baseline compared with 19% of usual care participants (odds ratio [OR], 3.45; 95% confidence interval [CI], 2.71-4.38; P<.001). Intervention patients also experienced greater rates of depression treatment (OR, 2.98; 95% CI, 2.34-3.79; P<.001), more satisfaction with depression care (OR, 3.38; 95% CI, 2.66-4.30; P<.001), lower depression severity (range, 0-4; between-group difference, -0.4; 95% CI, -0.46 to -0.33; P<.001), less functional impairment (range, 0-10; between-group difference, -0.91; 95% CI, -1.19 to -0.64; P<.001), and greater quality of life (range, 0-10; between-group difference, 0.56; 95% CI, 0.32-0.79; P<.001) than participants assigned to the usual care group. CONCLUSION: The IMPACT collaborative care model appears to be feasible and significantly more effective than usual care for depression in a wide range of primary care practices.

Aged↗

PubMed2002

A randomized trial of medical care with and without physical therapy and chiropractic care with and without physical modalities for patients with low back pain: 6-month follow-up outcomes from the UCLA low back pain study.

STUDY DESIGN: A randomized clinical trial. OBJECTIVES: To compare the effectiveness of medical and chiropractic care for low back pain patients in managed care; to assess the effectiveness of physical therapy among medical patients; and to assess the effectiveness of physical modalities among chiropractic patients. SUMMARY OF BACKGROUND DATA: Despite the burden that low back pain places on patients, providers, and society, the relative effectiveness of common treatment strategies offered in managed care is unknown. METHODS: Low back pain patients presenting to a large managed care facility from October 30, 1995, through November 9, 1998, were randomly assigned in a balanced design to medical care with and without physical therapy and to chiropractic care with and without physical modalities. The primary outcome variables are average and most severe low back pain intensity in the past week, assessed with 0 to 10 numerical rating scales, and low back-related disability, assessed with the 24-item Roland-Morris Disability Questionnaire. RESULTS: Of 1,469 eligible patients, 681 were enrolled; 95.7% were followed through 6 months. The mean changes in low back pain intensity and disability of participants in the medical and chiropractic care-only groups were similar at each follow-up assessment (adjusted mean differences at 6 months for most severe pain, 0.27, 95% confidence interval, -0.32-0.86; average pain, 0.22, -0.25-0.69; and disability, 0.75, -0.29-1.79). Physical therapy yielded somewhat better 6-month disability outcomes than did medical care alone (1.26, 0.20-2.32). CONCLUSIONS: After 6 months of follow-up, chiropractic care and medical care for low back pain were comparable in their effectiveness. Physical therapy may be marginally more effective than medical care alone for reducing disability in some patients, but the possible benefit is small.

Analgesics↗

PubMed2002

Quality of life in long-term, disease-free survivors of breast cancer: a follow-up study.

BACKGROUND: Women with breast cancer are the largest group of female survivors of cancer. There is limited information about the long-term quality of life (QOL) in disease-free breast cancer survivors. METHODS: Letters of invitation were mailed to 1336 breast cancer survivors who had participated in an earlier survey and now were between 5 and 10 years after their initial diagnosis. The 914 respondents interested in participating were then sent a survey booklet that assessed a broad range of QOL and survivorship concerns. All P values were two-sided. RESULTS: A total of 817 women completed the follow-up survey (61% response rate), and the 763 disease-free survivors in that group, who had been diagnosed an average of 6.3 years earlier, are the focus of this article. Physical well-being and emotional well-being were excellent; the minimal changes between the baseline and follow-up assessments reflected expected age-related changes. Energy level and social functioning were unchanged. Hot flashes, night sweats, vaginal discharge, and breast sensitivity were less frequent. Symptoms of vaginal dryness and urinary incontinence were increased. Sexual activity with a partner declined statistically significantly between the two assessments (from 65% to 55%, P =.001). Survivors with no past systemic adjuvant therapy had a better QOL than those who had received systemic adjuvant therapy (chemotherapy, tamoxifen, or both together) (physical functioning, P =.003; physical role function, P =.02; bodily pain, P =.01; social functioning, P =.02; and general health, P =.03). In a multivariate analysis, past chemotherapy was a statistically significant predictor of a poorer current QOL (P =.003). CONCLUSIONS: Long-term, disease-free breast cancer survivors reported high levels of functioning and QOL many years after primary treatment. However, past systemic adjuvant treatment was associated with poorer functioning on several dimensions of QOL. This information may be useful to patients and physicians who are engaging in discussion of the risks and benefits of systemic adjuvant therapy.

Breast Neoplasms↗

PubMed2002

Second Prize: The effectiveness of physical modalities among patients with low back pain randomized to chiropractic care: findings from the UCLA low back pain study.

BACKGROUND: Although chiropractors often use physical modalities with spinal manipulation, evidence that modalities yield additional benefits over spinal manipulation alone is lacking. OBJECTIVE: The purpose of the study was to estimate the net effect of physical modalities on low back pain (LBP) outcomes among chiropractic patients in a managed-care setting. METHODS: Fifty percent of the 681 patients participating in a clinical trial of LBP treatment strategies were randomized to chiropractic care with physical modalities (n = 172) or without physical modalities (n = 169). Subjects were followed for 6 months with assessments at 2, 4, and 6 weeks and at 6 months. The primary outcome variables were average and most severe LBP intensity in the past week, assessed with numerical rating scales (0-10), and low back-related disability, assessed with the 24-item Roland-Morris Disability Questionnaire. RESULTS: Almost 60% of the subjects had baseline LBP episodes of more than 3 months' duration. The 6-month follow-up was 96%. The adjusted mean differences between groups in improvements in average and most severe pain and disability were clinically insignificant at all follow-up assessments. Clinically relevant improvements in average pain and disability were more likely in the modalities group at 2 and 6 weeks, but this apparent advantage disappeared at 6 months. Perceived treatment effectiveness was greater in the modalities group. CONCLUSIONS: Physical modalities used by chiropractors in this managed-care organization did not appear to be effective in the treatment of patients with LBP, although a small short-term benefit for some patients cannot be ruled out.

Adult↗

PubMed2002

Increasing cervical cancer screening among underserved women in a large urban county health system: can it be done? What does it take?

BACKGROUND: Further reduction in avoidable cervical cancer morbidity and mortality may require system-wide, integrated approaches implemented in the public health facilities serving the nation's indigent and minority women. OBJECTIVES: Report on the evaluation of a 5-year demonstration project testing a multicomponent (provider, system, and patient) intervention to increase cervical cancer screening among women who receive their health care through the Los Angeles County Department of Health Services, the second largest County Health Department in the nation. MATERIALS AND METHODS: A longitudinal nonequivalent control group design was utilized. Data were collected during a baseline (no intervention) year and 2.5 years of intervention. A large hospital, one feeder Comprehensive Health Centers (CHC), and three of the health center's feeder Public Health Centers (PHC) received the intervention. Another hospital, CHC and its three feeder PHCs (matched on size, patient characteristics, and range of services provided) served as comparison sites. Independent random samples of patients 18 years and older were drawn annually at each site (n = 18,642). The outcome measure was a receipt of a Papanicolaou smear during a 9-month period. RESULTS: At the Hospital and CHC levels a statistically significant intervention effect was observed after controlling for baseline screening rates and case mix. No intervention effect was observed at the PHCs. CONCLUSION: An intensive multicomponent intervention can increase cervical cancer screening in a large, urban, County health system serving a low-income minority population of under screened women. Retention of program elements in the postresearch phase, and the difficulties and importance of conducting this type of research, is described.

Adult↗

PubMedDate not supplied

Prediction of neurocognitive outcome in adult brain tumor patients.

PURPOSE: To determine the relative contributions of patient, disease and therapy specific factors on neurocognitive outcome of brain tumor patients. PATIENTS AND METHODS: Seventy-nine patients (mean age = 41.1 years; range: 17-75 years; 54% male, 46% female) with glioblastoma multiforme (37%), anaplastic astrocytoma (17%), low grade astrocytoma (13%), and oligodendroglioma (10%) predominantly in the frontal regions (45%) were evaluated in an outpatient neuro-oncology clinic. A neuropsychological test battery emphasized elements of attention/concentration. Multiple regression analyses determined relationships between functional outcomes and demographic and clinical predictors. RESULTS: Key predictors of neurocognitive functioning included age of the patient (36-59 years, p < 0.01; >/= 60 years, p < 0.05) and frontal region tumor location (p < 0.01). As expected, older patients did not perform as well as younger patients in absolute terms on neuropsychological tests; decrements persisted when comparisons were based on age-standardized versions of neurocognitive outcomes. Major depressive disorder was marginally associated with outcomes, while surgical interventions and radiotherapy did not show strong associations with test performances. CONCLUSIONS: Primary malignant brain disease was found to be less negative on neurocognitive outcomes for younger than for either middle-aged or older patients. Treatments were not as predictive of neurocognitive outcomes as age. No single test outcome measure was as sensitive to neurocognitive status as the empirically derived index of attention and concentration.

Adolescent↗