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PubMed1995

The evaluation of pain in patients with knee osteoarthritis: the knee pain scale.

OBJECTIVE: To develop and validate a knee pain scale (KPS) for use with osteoarthritis (OA) of the knee. METHODS: Patients with documented evidence of knee OA completed the KPS and a test battery including measures of physical functioning, physical performance, and depression. Analyses were conducted to confirm the 4-factor structure of the measure, determine alpha reliabilities, assess the test-retest reliability, and examine the construct validity of the KPS. RESULTS: Confirmatory factor analysis revealed that the KPS has 4 subscales, including frequency and intensity of pain experienced during both ambulation/climbing and transfer activities. All reliabilities were in excess of 0.80 and the subscales of the KPS shared expected variance with both self-reported and objective indices of dysfunction. CONCLUSION: The KPS has good psychometric properties for assessing pain experienced in conjunction with the performance of activities of daily living. Although at present it is a research tool, with further study it should prove valuable in clinical practice as well.

Activities of Daily Living↗

PubMed2005

Exercise and physical activity in persons aging with a physical disability.

The relationship between physical functioning and physical activity isa reciprocal one; physical functioning provides the individual with the capability to engage in physical activities, and physical activity helps to maintain and in some cases improve physical functioning. This reciprocal relationship, coupled with the high prevalence of physical inactivity among persons aging with a disability, has profound implications for rehabilitation practice, especially in evaluating intermediate and long-term outcomes of clinical practice. For rehabilitation to play a role in the long-term maintenance and enhancement of physical functioning among persons with disabilities, increasing participation in various types of physical activity in the community must be part of the recovery and maintenance continuum. There is also a critical need to identify specific doses of physical activity for specific disabilities and secondary conditions. HMOs and other health insurers will require evidence-based outcomes before establishing reimbursement procedures for physical activity programs for persons aging with a physical disability.

Activities of Daily Living↗

PubMed2000

Factors related to sleep disturbance in older adults experiencing knee pain or knee pain with radiographic evidence of knee osteoarthritis.

OBJECTIVES: To describe the types and frequencies of sleep complaints and the biopsychosocial factors associated with sleep disturbance in a large community sample of older adults experiencing knee pain or knee pain with radiographic evidence of knee osteoarthritis (OA). DESIGN: Baseline analyses of an observational prospective study. SETTING AND PARTICIPANTS: Participants were 429 men and women aged 65 years and older experiencing knee pain or knee pain with radiographic evidence of OA enrolled in the Observational Arthritis Study in Seniors (OASIS). MEASUREMENTS: Demographic variables (age, gender, ethnicity, education), health (X-rays of knee rated for OA severity, medical conditions, medication use, smoking status, body mass index, self-rated health), physical functioning (self-rated physical functioning, physical performance), knee pain, and psychosocial functioning (social support, depression) were measured. RESULTS: Problems with sleep onset, sleep maintenance, and early morning awakenings occurred at least weekly among 31%, 81%, and 51% of participants, respectively. Bivariate correlates of greater sleep disturbance in those with OA were less education, cardiovascular disease, more arthritic joints, poorer self-rated health, poorer physical functioning, poorer physical performance, knee pain, depression, and less social support. In regression analyses, each set of variables representing the domains of health, physical functioning, pain, and psychosocial functioning contributed to the prediction of sleep disturbance beyond the demographic set. Finally, in a simultaneous model, white race (trend, P = .06), poorer self-rated health, poorer physical functioning, and depressive symptoms were predictive of sleep disturbance. CONCLUSIONS: Sleep disturbance is common in older adults experiencing knee pain or knee pain with radiographic evidence of OA and is best understood through the consideration of demographic, physical health, physical functioning, pain, and psychosocial variables. Interventions that take into account the multidetermined nature of sleep disturbance in knee pain or knee OA are most likely to be successful.

Activities of Daily Living↗

PubMed2003

[Improvement of functional deficits, physical mobility and cognitive function by treatment in a geriatric day hospital].

OBJECTIVES AND METHODS: Several studies showed the efficacy of inpatient geriatric treatment. Different outcomes were reported for geriatric patients treated in outpatient facilities. To analyze the course of rehabilitation, 312 patients (62.2% female) with a mean age of 77.2 years (SD = 7.4) in a geriatric day hospital were evaluated regarding a) changes of functional deficits and mobility, b) cognitive function and c) depression. Patients were examined with a geriatric assessment including activities of daily living, Tinetti, Timed-up and go, Mini Mental State Examination (MMSE), Clock Completion Test, Handgrip Strength-Test, Money-Counting Test and Geriatric Depression Scale (GDS) at admission and discharge. RESULTS: All examined parameters had changed significantly after treatment. A clear decrease in the portion of patients with disability-related outcomes in the examined parameters (Barthel Index, Tinetti, Timed-up and go, MMSE, GDS) was demonstrated: a) the proportion of patients with a Barthel Index under 75 had decreased by 26.5%, the proportion of patients with an increased risk of falls was reduced by 27%, b) the proportion of patients with a MMSE Score less than 24 was decreased by 14.8% and c) mild effects were achieved in depression. CONCLUSIONS: Day hospital geriatric treatment leads to an improvement of functional deficits, mobility and mental health of patients. The results contrast to other studies in day hospital treatment.

Accidental Falls↗

PubMed1987

Functional and physical characteristics of rat Leydig cell populations isolated by metrizamide and Percoll gradient centrifugation.

The physical and functional properties of Leydig cell populations obtained by centrifugation of testicular cells in two different density gradient media, Percoll and Metrizamide, were compared. Percoll-gradient centrifugation yielded two Leydig cell bands (Peak I and Peak II) that were comparable, as to their density and testosterone-producing capacity, to the respective Leydig cell bands, Population I and Population II, isolated in a Metrizamide gradient. The denser Leydig cell band (II) had a greater capacity for testosterone production than the less dense band (I), regardless of the type of gradient used for its isolation. Metrizamide gradient centrifugation separated the majority of germ cells from the "light" (Population I) Leydig cells, whereas in the Percoll gradient, germ cells comigrated with Peak I Leydig cells. Leydig cell separation by Percoll gradients was highly dependent on the presence of Ca2+ and Mg2+ in the medium, while these cations had no effect on the separation of Leydig cells by Metrizamide. In conclusion, Metrizamide gradient centrifugation yielded two Leydig cell populations of similar functional and physical properties to the respective populations isolated in Percoll gradients.

Animals↗

PubMed2005

Responsiveness and clinically important differences for the WOMAC and SF-36 after hip joint replacement.

OBJECTIVES: To study responsiveness and establish the minimal clinically important differences (MCID) and minimal detectable change (MDC) in patients undergoing total hip replacement (THR) using the Short Form 36 (SF-36) and the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC). METHODS: We conducted a prospective observational study in three public hospitals of all consecutive patients with a diagnosis of hip osteoarthritis (OA) on waiting lists to undergo THR. Patients completed the SF-36 and the WOMAC (subscales transformed to 0 to 100), which measured the health-related quality of life (HRQoL), before intervention and 6 months and 2 years later, and additional transitional questions, which measured the changes in the joint 6 months postoperatively. RESULTS: Improvements at 6 months after a THR were between 37 (stiffness) and 39 points (pain), depending on the WOMAC domain. The SF-36 domains also showed improvements: physical function (31.91), physical role (33.71), and bodily pain (29.77). From 6 months to 2 years, improvements ranged from 2 to 5 points, except for role physical (13.25). A ceiling effect was detected on some WOMAC domains as well as a floor effect on the SF-36. The MCID ranged from 25.91 (stiffness) to 29.26 (pain) on the WOMAC and from 10.78 (physical role) to 20.40 (physical function) on the SF-36. The MDC ranged from 21.38 (pain) to 27.98 (stiffness) on the WOMAC and from 18.99 (physical function) to 42.05 (social function) on the SF-36. CONCLUSIONS: These values indicate expected gains after THR. However, the MCID and MDC values must be viewed cautiously due to the uncertainty of these estimators and should not be considered as absolute thresholds.

Aged↗

PubMed1993

Functional health and well-being in patients with severe atherosclerotic peripheral vascular occlusive disease.

Functional health and sense of well-being are known to be adversely affected by chronic illness. The extent to which peripheral vascular occlusive disease (PVOD) alters these factors independent of other comorbid conditions is unknown. Sixty patients with PVOD severe enough to have required aortobifemoral bypass (AFB) between 1985 and 1990 were selected for evaluation. Although all were heavy smokers and 20% had suffered previous myocardial infarction, all had adequate cardiopulmonary function to survive AFB. The SF-20 questionnaire, validated in the Medical Outcomes Study (MOS), was used to evaluate patients' functional health and well-being at least 6 months after AFB. All grafts were patent at the time of questionnaire completion. Three measures of functional health (physical function, role function, and bodily pain) and three measures of well-being (mental health, health perception, and social function) were scored from SF-20 responses using the MOS protocol. These PVOD patients were then compared to MOS norms for patients without any chronic disease, to MOS norms adjusted for age and other comorbidities of the PVOD patients sampled, and to patients with congestive heart failure or recent myocardial infarction. Physical function, role function, and health perception were worse and bodily pain greater in patients with severe PVOD after surgical treatment as compared with MOS patients even after adjustment for comorbidities. Decrements in physical function, role function, and health perception for PVOD patients were comparable to MOS patients with congestive heart failure or recent myocardial infarction, whereas level of bodily pain was worse in PVOD patients than in these other groups. After adjustment for comorbidities, social function and mental health were not independently affected by PVOD. Functional health and well-being were not significantly different when PVOD patients with limb threat were compared to those with claudication. Severe PVOD is associated with decrements in functional health and well-being comparable to or greater than other severe chronic illness, even after successful revascularization. Further study is needed to examine the effect of revascularization on functional health.

Activities of Daily Living↗

PubMed2004

Ethnic differences in satisfaction and quality of life in veterans with ischemic heart disease.

OBJECTIVE: To assess differences in self-reported health status and satisfaction between African-American and caucasian veterans with ischemic heart disease (IHD). DATA SOURCES/STUDY SETTING: African-American and caucasian patients enrolled in General Internal Medicine clinics at six Veteran Affairs Medical Centers. STUDY DESIGN: We conducted a cross-sectional analysis of baseline survey data from the Ambulatory Care Quality Improvement Project (ACQUIP). Patients who responded to an initial health-screening questionnaire were sent follow-up surveys, which included the Medical Outcomes Study 36-item Health Survey (SF-36), the Seattle Outpatient Satisfaction Questionnaire (SOSQ), and the Seattle Angina Questionnaire (SAQ). PRINCIPAL FINDINGS: Of the 44,965 patients approached, 27,977 (62%) returned the baseline survey, of which 10,385 patients reported IHD and were sent the SAQ. Of those, 7,985 patients (84% caucasian, 16% African-American) responded. Caucasian respondents tended to be older, married, nonsmokers, with annual incomes over dollar 10,000, and had higher educational attainment than African Americans. African-American patients reported significantly fewer cardiac procedures (33% vs. 52%, p < 0.001) but were more likely to have diabetes (37% vs. 28%, p < 0.001) and hypertension (81% vs. 68%, p < 0.001). After adjustment for demographic characteristics, comorbid conditions, clinic site, and site-ethnicity interactions, SF-36 scores for physical function, role physical, bodily pain, and vitality were greater for African Americans than caucasians, while adjusted scores were significantly lower for role emotional. However, because of the site-ethnicity interaction, scores varied significantly by site. For the SAQ, overall adjusted physical function summary scores and disease stability scores were significantly greater for African Americans than caucasians. Adjusted summary satisfaction scores for provider satisfaction were not significantly lower for African Americans overall but were significant at two of six sites. Similarly, on the SAQ, adjusted treatment satisfaction scores were significantly lower for African Americans at half of the sites and minimally but not clinically significant overall. CONCLUSIONS: Despite a higher prevalence of cardiac risk factors, African-American patients with CAD who were treated in the VA system appeared to have a greater level of physical functioning, vitality, and angina stability. After adjustment for confounding demographic variables, however, these differences were not consistently significant at all geographic locations. This suggests that many other sociodemographic variables, in addition to ethnicity, influence apparent discrepancies in quality of life, satisfaction, and angina.

Black or African American↗

PubMed2001

Quality of life in patients with diabetic foot ulcers.

PURPOSE: To compare Quality of Life (QoL) between diabetic patients with (former or present) and without foot ulcers. METHODS: Two patient groups of comparable age, sex distribution, type distribution and duration of diabetes were studied. Fourteen patients with former or present, but clinically stable diabetic foot ulcers (DFUs) were studied. The control group was 24 unknown patients with DFUs. None of the participants had other diabetic complications or conditions that would potentially affect QoL. A diabetic foot risk score and QoL were assessed. QoL was scored with the RAND-36, the Barthel Score (ADL) and the Walking and Walking Stairs Questionnaire (WSQ). RESULTS: Marked and significant differences were found in physical functioning (p < 0.001), social functioning (p < 0.05), physical role (p < 0.001) and health experience (p < 0.05) between the two groups with the RAND-36 and the four subscales of the WSQ (all p < 0.001). On all these scales, QoL was significantly poorer in the study group. A correlation was found between the risk scores and QoL (physical functioning and physical role Spearman's r: -0.66, -0.56 and WSQ -0.63, -0.64, -0.67 and 0.71, respectively). CONCLUSION: Presence or history of DFUs has a large impact on physical role, physical functioning and mobility. Physical impairments especially influenced QoL. Probably, QoL can be increased by providing attention that will enhance mobility and by giving advice about adaptations and special equipment.

Aged↗

PubMed2005

[Health-related quality of life after radical prostatectomy or radiotherapy].

PURPOSE: We compared general and disease specific health related quality of life (QOL) after surgery and radiotherapy for prostate cancer. MATERIALS AND METHODS: We performed a retrospective survey of patients treated between 1992 and 2001. General and disease specific health related QOL were assessed by the SF-36 and the University of California-Los Angels Prostate Cancer Index (UCLA PCI). We mailed questionnaires of QOL survey and obtained from 143 and 73 men who treated surgery and radiotherapy. The median ages of surgery and radiation group were 70.9 and 79.2 years old, and the median periods after treatment were 2.7 and 2.0 years, respectively. RESULTS: Physical function, role physical, social functioning and mental health were higher score in surgery group than radiation group, however, general health perceptions was higher in radiation group among SF-36. Surgery group had worse urinary function and better sexual function compared with radiation group. Multi-variable analysis showed that scores of social functioning, mental health and sexual function were most influenced by each modality, the scores of physical function, role physical, urinary function and sexual bother were most influenced by age, and the score of general health perceptions and body pain was most influenced by the existence of recurrence. CONSIDERATION: This cross-sectional survey cleared the differences of QOL after surgery and radiotherapy, and the influences of each modality. However, because of difference in background of each group, longitudinal investigation will need to aid patients in the decision making process.

Aged↗

PubMed2001

Prevention for the older woman. A practical guide to assessing physical and cognitive function.

Life expectancy of women is greater than that of men at every age. Thus, an older woman is more likely than a man to be living without a spouse and living alone. It is important in caring for an older woman to establish how well she is functioning physically and cognitively and in what activities she may need assistance. Given the high prevalence of dementia with advanced age, screening for dementia should be considered in women over age 75. Although their risk of suicide is lower, older women are more likely to be depressed than older men, regardless of race, ethnic background, or economic status. Late-life depression is treatable, and screening should be considered in the presence of a major life change, recent stroke, or MI.

Aged↗

PubMed1999

Validation of the PASE in older adults with knee pain and physical disability.

PURPOSE: To examine the validity of the Physical Activity Scale for the Elderly (PASE) among individuals with disability. METHODS: A sample of 471 participants (mean age = 71.36) in an epidemiological study of chronic knee pain completed the PASE and self-report measures of knee pain, perceived physical function, satisfaction with physical function, and importance of physical function. A 6-min walk test and an isokinetic assessment of knee strength were also administered. RESULTS: PASE scores were significantly correlated in expected directions with performance on the 6-min walk, knee strength, frequency of knee pain during transfer, and perceived difficulty with physical functioning. Gender and age were identified as significant moderators of PASE scores and the scale's construct validity was supported by testing a conceptually driven hypothesis regarding patterns of physical activity. CONCLUSIONS: These results support the PASE's validity for the assessment of physical activity among older adults with pain and disability.

Aged↗

PubMed2000

Long-term outcome of children surviving massive burns.

CONTEXT: Major advances in treatment of burn injuries in the last 20 years have made it possible to save the lives of children with massive burns, but whether their survival comes at the cost of impaired quality of life is unknown. OBJECTIVE: To investigate the long-term quality of life in children who have survived massive burns. DESIGN AND SETTING: Retrospective, cross-sectional study conducted in a regional pediatric burn center. PATIENTS: Eighty subjects who were younger than 18 years at the time of injury, who survived massive burns involving > or =70% of the body surface, and who were admitted to the burn center between 1969 and 1992 were evaluated an average (SD) of 14.7 (6.0) years after injury. MAIN OUTCOME MEASURES: Short Form 36 (SF-36) scores of the 60 patients aged at least 14 years were compared with national norms and the impact of clinical variables on individual domain scores was assessed. RESULTS: The SF-36 domain scores of the study patients, who had survived massive burns at a mean (SD) age of 8.8 (5.5) years, were generally similar to the normal population). However, 15% and 20% of the burn patients had scores in the physical functioning and physical role domains, respectively, that were more than 2 SDs below the relevant norm, indicating that a few patients had continuing serious physical disability. Better functional status of the family predicted a higher score in physical role (P = .04). The child's early reintegration with preburn activities predicted higher scores in general health (P = .03), physical functioning (P = .003), and physical role (P = .01). Children followed up consistently in the multidisciplinary burn clinic for 2 years had higher physical functioning (P = .04). CONCLUSIONS: In this study, while some children surviving severe burns had lingering physical disability, most had a satisfying quality of life. Comprehensive burn care that included experienced multidisciplinary aftercare played an important role in recovery.

Adult↗

PubMedDate not supplied

Are fitness, activity, and fatness associated with health-related quality of life and mood in older persons?

PURPOSE: This study sought to determine whether levels of fitness, habitual physical activity, and fatness are associated health-related quality of life and mood in older persons. METHODS: The subjects were men (n = 38) and women (n = 44), ages 55 to 75 years, who had milder forms of hypertension, but who were otherwise healthy and not engaged in a regular exercise or diet program. Aerobic fitness was assessed by maximal oxygen uptake during treadmill testing, muscle strength by a one-repetition maximum, habitual activity by questionnaire, fatness by dual-energy x-ray absorptiometry, and body mass index. Health-related quality of life was assessed by the Medical Outcomes Study SF-36, and mood by the Profile of Mood States (POMS). Correlations were determined by bivariate and multivariate regression. RESULTS: Higher aerobic fitness was associated with more desirable outcomes, as indicated by the POMS anger and total mood disturbance scores and by the SF-36 bodily pain, physical functioning, vitality, and physical component scores. Increased fatness was associated with less desirable outcomes, as indicated by the POMS anger, depression, and total mood disturbance scores and by the SF-36 bodily pain, physical functioning, role-emotional, role-physical, social functioning, vitality, and physical component scores. Higher physical activity was associated with an increased POMS score for vigor and a decreased SF-36 score for bodily pain. Strength was not related to health-related quality of life or mood. Aerobic fitness was the strongest predictor of the SF-36 score for vitality and the POMS score for total mood disturbance, whereas fatness was the strongest predictor of the POMS anger score and the SF-36 bodily pain, physical functioning, and physical component scores. CONCLUSIONS: Even in the absence of regular exercise and a weight-loss diet, relatively small amounts of routine physical activity within a normal lifestyle, slight increases in fitness, and less body fatness are associated with a better health-related quality of life and mood.

Affect↗

PubMed2000

Reliability, validity, and responsiveness of the lower extremity measure for patients with a hip fracture.

BACKGROUND: The purpose of this study was to determine whether currently published outcome measures of physical function would be suitable for use for older adults with a hip fracture. The measures that were considered were the Musculoskeletal Function Assessment (MFA) Instrument, the Older Americans' Resources and Services (OARS) Multidimensional Functional Assessment Questionnaire physical function subscale, the Toronto Extremity Salvage Score (TESS), and the Short Form-36 (SF-36). Following suggestions by an expert panel and patient interviews, the MFA was not tested further. The TESS was modified and renamed the Lower Extremity Measure (LEM). METHODS: Forty-three community-dwelling patients with a hip fracture completed the LEM, OARS, and SF-36 in the hospital so that the prefracture status could be obtained; they were then followed prospectively at six weeks and at six months. All patients were interviewed twice in the hospital to assess the reliability of the LEM (intraclass correlation coefficient = 0.85). To establish criterion validity, the measures were compared with the Timed Up and Go (TUG) test at six weeks. We tested a number of hypotheses to determine construct validity. RESULTS: Only the LEM scores were significantly correlated with the TUG scores (r = -0.53, p = 0.03). The LEM scores were significantly correlated with the SF-36 subscale scores and the OARS scores. Patients with at least one comorbidity had a lower mean prefracture LEM score (90.0 +/- 9.7) than patients with no comorbidity (96.9 +/- 8.1) (p = 0.02). Patients who had used no walking aids before the fracture had a higher mean prefracture LEM score than those who had used a cane (95.5 +/- 5.8 compared with 85.5 +/- 12.7; p = 0.0007). Both the LEM and the SF-36 scores changed significantly between all of the time-periods (p < 0.05). Measures of responsiveness indicated that the LEM was the best measure for detecting changes in physical function. CONCLUSIONS: The LEM can detect clinically important changes in physical function over time in patients with a hip fracture and would be most useful for clinical trials or cohort studies. Orthopaedists who are currently utilizing the SF-36 can be reassured that the physical function subscale is a valid measure for patients with a hip fracture.

Activities of Daily Living↗

PubMed2004

Psychometric evaluation of two scales assessing functional status and peripheral neuropathy associated with chemotherapy for ovarian cancer: a gynecologic oncology group study.

PURPOSE/OBJECTIVES: To evaluate the psychometric properties of two adapted scales, one for functional status and one for peripheral neuropathy secondary to neurotoxic chemotherapy. DESIGN: Repeated measures methodologic design conducted within a Gynecologic Oncology Group (GOG) phase III clinical trial that randomly assigned patients with advanced epithelial ovarian cancer to cisplatin and cyclophosphamide or cisplatin and paclitaxel. SETTING: 8 GOG institutions participating in the GOG clinical trial. SAMPLE: 88 evaluable outpatients enrolled in the GOG clinical trial. Sample size at time 1 (T1) was 88 patients and at time 2 (T2) was 67 patients. METHODS: All scales were administered at T1 (prior to initiation of chemotherapy) and T2 (after six cycles of chemotherapy but prior to second-look laparotomy). Internal consistency reliability, criterion validity, and construct validity were evaluated, and clinical application was explored. MAIN RESEARCH VARIABLES: Self-reported peripheral neuropathy and functional status (comprised of physical function and role function subscales), the GOG performance status scale, and the GOG toxicity criteria. FINDINGS: Reliability coefficients at T1 were physical function = 0.83, role function = 0.96, and peripheral neuropathy = 0.91; at T2, they were physical function = 0.83, role function = 0.92, and peripheral neuropathy = 0.89. At T1, physical function and role function correlated positively with performance status. Peripheral neuropathy correlated positively with GOG toxicity criteria used at T2. Principal component factor analysis suggested that the functional status scale had a two-factor structure with factors representing general and specific mobility and that the peripheral neuropathy scale also had a two-factor structure with factors representing foot and hand neuropathy. CONCLUSIONS: The physical function, role function, and peripheral neuropathy scales have internal consistency, reliability, criterion validity, and construct validity. However, revision of the scales should address modification of specific questions and consider increasing the Likert scale from a four-point to a five- or seven-point scale to enhance clinical sensitivity and application. IMPLICATIONS FOR NURSING: With minor modifications, these scales should be useful in assessing physical function, role function, and peripheral neuropathy in patients who receive agents that may cause peripheral neuropathy.

Adult↗

PubMedDate not supplied

Creation of a model of independence for community-dwelling elders in the United States.

BACKGROUND: A goal of many public policies in support of older Americans is independence, but the meaning of independence in the context of community-dwelling elders is not clear. OBJECTIVE: To create a preliminary conceptual model of independence for older, community-dwelling Americans. METHODS: Exploratory factor analysis was used during secondary analysis of a federal dataset, the Second Supplement on Aging (N = 9,447). After preparation of the dataset, 51 variables were selected for possible submission to factor analysis. Initial item reduction resulted in 21 variables for factor structure development. RESULTS: Three factors for a preliminary conceptual model of independence were identified: physical function, social ability, and physical health. Physical function, explaining 29.5% of the variance, included variables related to elders' ability to function in everyday life, such as how well they function in their homes. Social ability variables included items related to social activities, education, driving, and leaving the house, and accounted for 8.6% of the variance. Physical health explained 6.1% of the variance and included variables related to visits to the doctor, prescription drug use, and number of days spent in bed during the past year. DISCUSSION: Findings suggest the importance of physical function for independence and the importance of a physical environment that supports various levels of physical function. Social ability plays a role in independence and may require adequate physical function, financial and material resources, and social support. Physical health may be a component of physical function or reflect access to healthcare. Future studies using primary data are indicated for further development of the concept of independence in the context of community-dwelling elders in the United States. A conceptual model of independence will guide nurses in their assessments of and interventions for older, community-dwelling adults and will help policymakers prioritize spending for programs that have independence as a goal.

Activities of Daily Living↗

PubMed1995

Comparing outcomes and charges for patients with acute myocardial infarction in three community hospitals: an approach for assessing "value".

OBJECTIVE: To assess the value of care (i.e. outcomes in relation to charges) for acute myocardial infarction (Acute MI) patients in three community hospitals after controlling for patient mix differences. DESIGN: An observational study of a cohort of acute MI patients admitted to hospital for care were studied based on medical record review and on patient-completed questionnaires at 8 weeks post-discharge. SETTING: Three community hospitals located in urban areas in the southeastern region of the United States. PATIENTS: A consecutive sample of 133 non-transfer Acute MI patients were entered into the study based on EKG results, enzyme tests and chest pain characteristics. Hospital medical record and charge data were available on all patients and patient-reports on 86% of survivors. MAIN OUTCOME MEASURES: Data were gathered on clinical outcomes (death, angina, dyspnea), functional outcomes (physical and psychosocial), satisfaction, and resource intensity (length of stay, total hospital charges, ancillary charges). Because of patient mix differences across hospitals, outcomes were adjusted for severity of Acute MI, comorbidity and demographics. RESULTS: There were important patient mix differences across hospitals. For example, Hospital C had more comorbidity than Hospital B (57.78% of Hospital C patients vs 15.00% of Hospital B patients were rated moderate or severe using a well tested index, p < 0.0001). After adjusting for patient mix differences, Hospital C scored significantly better on four of six outcome measures (i.e. angina, dyspnea, physical functioning, psychosocial functioning). For example, Hospital C's patients' mean scores on physical functioning at 8 week follow-up averaged 75.19 (on a 0-100 scale), while Hospital A's was 63.03 and Hospital B's was 48.57 (F-ratio = 4.95; p < 0.05). However, Hospital A scored significantly lower on all three resource intensity indicators (length of stay, ancillary charges, and total charges). For example, Hospital A's ancillary charges averaged $10,752 while Hospital B's and C's averaged $11,432 and $16,598 respectively. Between-hospital comparisons on adjusted mortality and satisfaction did not differ significantly. CONCLUSION: The "value" profiles (i.e. outcomes related to charges) produced by these three hospitals were substantially different. Studies that simultaneously measure outcomes, costs, patient mix and processes have potential to: (a) enable clinical teams to improve the measurable value of clinical care; and (b) enable purchasers to better evaluate which providers to select as preferred sources of care.

Acute Disease↗