Прибыльность предприятия и резервы ее повышения

Целью данной работы является анализ факторов, влияющих на прибыль, анализ показателей оценки прибыли, и разработка рекомендаций по увеличению прибыли

Individual differences in the use of the response scale determine valuations of hypothetical health states: an empirical study

ABSTRACT: BACKGROUND: The literature remains inconclusive about the effects of socio-demographic characteristics of the respondent, including age, on valuation scores of hypothetical health states. We analyzed data from a study designed to discriminate between the effects of respondents age and time preference on valuations of health states to get insight in the contribution of individual response patterns to the variance in valuation scores. METHODS: 212 respondents from different age groups valued six hypothetical health states with three methods: a Visual Analogue Scale (VAS) and two variants of the Time trade-off (TTO). Analyses included a generalizability study, principal components analysis and cluster analysis. RESULTS: Valuation scores differed significantly but not systematically between valuation methods. A total of 36.8% of variance was explained by health states, 1.6% by elicitation method and 0.2% by age group. Individual differences in the use of the response scales, e.g. a tendency to give either high or low TTO-scores, or a high or low scoring tendency on the VAS were the main source of remaining variance. These response patterns were not related to age or other identifiable respondent characteristics. CONCLUSIONS: We conclude that individual response patterns were more important determinants of TTO or VAS valuations of health states than age or other measured respondent characteristics. Further valuation research should focus on explaining individual response patterns as a possible key to understanding the determinants of health state valuations

How distressing is referral to colposcopy in cervical cancer screening?

Objective Referral for colposcopy because of abnormal Pap test results is likely to be distressing, but the extent and duration of these effects are unknown. We aimed to fill this gap. Methods We conducted a prospective observational study at two departments of Obstetrics and Gynecology (an academic and a non-academic setting). Women referred for colposcopy completed questionnaires before colposcopy, and at 1, 3, and 6 months afterwards. A reference group of 706 screen participants, aged 29-60 years old, was included and completed questionnaires once. Main outcome measures were generic health-related quality of life (HRQoL), assessed through the EQ-5D and the SF-12 physical and mental scores (PCS-12 and MCS-12); anxiety as assessed by STAI-6, and screen-specific anxiety as assessed by the psychological consequences questionnaire (PCQ). Results 154 women responded to the questionnaire, of whom 132 were included in the analyses. Histological results were CIN 1 in 17/115 women (15%) and CIN 2 + in 62 (54%). In 36 women (31%) there was no histologically confirmed neoplasia. Before colposcopy physical HRQoL scores were similar or slightly better than in the reference group, while mental HRQoL (MSC-12) and (screen-specific) anxiety were worse (p < 0.001). Irrespective of CIN-grades, anxiety washed out during follow-up (p < 0.001), with changes being clinically relevant. Conclusions Referral for gynecological evaluation because of abnormal PAP-test results was distressing. Anxiety - and not the physical burden of management - seemed to be the most bothersome to women. For all CIN-grades, distress disappeared over six months following colposcopy, suggesting a reassuring effect of gynecological mana

How should ethnic diversity be represented in medical curricula? A plea for systematic training in cultural competence

Ethnic diversity has become a common reality in European societies, including those of Germany and the Netherlands. Given that ethnic minority groups and immigrants are known to be especially vulnerable to inequalities in health, access to services and quality of care, the need for cultural competency training in medical education is widely acknowledged. This paper presents four key issues in providing medical students and physicians with the knowledge, attitudes and skills to adapt medical care to ethnically diverse populations. It then describes two educational programmes delivered by the University of Amsterdam (UvA Academic Medical Centre, the Netherlands) and Giessen University Medical School (Germany), respectively, to illustrate that translating theoretical educational objectives into educational practice can lead to different teaching programmes depending on specific local conditions. In the conclusions, emphasis is placed on the need for systematic approaches that do not limit their focus to patients and groups of specific ethnic or migration backgrounds. Issues of culture, communication and research in relation to ethnically diverse populations are magnifications of general problems in medicine and healthcare. Explicit attention to ethnic diversity thus offers a view through a ‘magnifying glass’ of subjects of much broader importance and can be a means for improving health care in general

Health-Related Quality of Life in Cervical Cancer Survivors: A Population-Based Survey

PURPOSE: In a population-based sample of cervical cancer survivors, health-related quality of life (HRQoL) was assessed 2-10 years postdiagnosis. METHODS AND MATERIALS: All patients given a diagnosis of cervical cancer in 1995-2003 in the Eindhoven region, The Netherlands, and alive after Jan 2006 were identified through the cancer registry. Generic HRQoL (36-Item Short-Form Health Survey, EQ-5D), cervical cancer-specific HRQoL (European Organization for Research and Treatment of Cancer Quality-of-Life questionnaire cervical cancer module), and anxiety (6-item State Trait Anxiety Inventory) were assessed and compared with a reference population (n = 349). Data for tumor characteristics at diagnosis and disease progression were available. RESULTS: A total of 291 women responded (69%), with a mean age of 53 +/- 13 (SD) years (range, 31-88 years). Treatment had consisted of surgery (n = 195) or a combination of therapies (n = 75); one woman had not been treated. Of all women, 85% were clinically disease free, 2% had a recurrence/metastasis, and in 13%, this was unknown. After controlling for background characteristics (age, education, job and marital status, having children, and country of birth), generic HRQoL scale scores were similar to the reference population, except for worse mental health in survivors. The most frequent symptoms were crampy pain in the abdomen or belly (17%), urinary leakage (15%), menopausal symptoms (18%), and problems with sexual activity. Compared with the 6-10-year survivors, more sexual worry and worse body image were reported by the 2-5-year survivors. Compared with surgery only, especially primary radiotherapy was associated with an increased frequency of treatment-related side effects, also after controlling for age and disease stage a

Health status as a measure of outcome of disease and treatment

This thesis addresses a number of related topics in health status measurement in the evaluation of the effects of disease and of medical care. Its main objectives are: I. To provide a general overview of the field of descriptive health status measurement. 2. To compare the contents and the relative performance of a number of currently available measures for descriptive health status measurement, to demonstrate applications of descriptive health status measurement and to discuss the importance of standardization of research methods in health status measurement. 3. To provide an overview of the current state of affairs in evaluative health status measurement, and to demonstrate empirical studies addressing the feasibility of collecting valuation data by self-assessment questionnaire

What determines individuals' preferences for colorectal cancer screening programmes? A discrete choice experiment.

INTRODUCTION: In many countries uptake of colorectal cancer (CRC) screening remains low. AIM: To assess how procedural characteristics of CRC screening programmes determine preferences for participation and how individuals weigh these against the perceived benefits from participation in CRC screening. METHODS: A discrete choice experiment was conducted among subjects in the age group of 50-75 years, including both screening-naive subjects and participants of a CRC screening programme. Subjects were asked on their preferences for aspects of CRC screening programmes using scenarios based on pain, risk of complications, screening location, preparation, duration of procedure, screening interval a

Burden of waiting for surveillance CT colonography in patients with screen-detected 6–9 mm polyps

Purpose: We assessed the burden of waiting for surveillance CT colonography (CTC) performed in patients having 6–9 mm colorectal polyps on primary screening CTC. Additionally, we compared the burden of primary and surveillance CTC. Materials and methods: In an invitational population-based CTC screening trial, 101 persons were diagnosed with <3 polyps 6–9 mm, for which surveillance CTC after 3 years was advised. Validated questionnaires regarding expected and perceived burden (5-point Likert scales) were completed before and after index and surveillance CTC, also including items on burden of waiting for surveillance CTC. McNemar’s test was used for comparison after dichotomization. Results: Seventy-eight (77 %) of 101 invitees underwent surveillance CTC, of which 66 (85 %) completed the expected and 62 (79 %) the perceived burden questionnaire. The majority of participants (73 %) reported the experience of waiting for surveillance CTC as ‘never’ or ‘only sometimes’ burdensome. There was almost no difference in expected and perceived burden between surveillance and index CTC. Waiting for the results after the procedure was significantly more burdensome for surveillance CTC than for index CTC (23 vs. 8 %; p = 0.012). Conclusion: Waiting for surveillance CTC after primary CTC screening caused little or no burden for surveillance participants. In general, the burden of surveillance and index CTC were comparable. Key points: • Waiting for surveillance CTC withi

How do Zimbabweans value health states?

Background Quality of life weights based on valuations of health states are often used in cost utility analysis and population health measures. This paper reports on an attempt to develop quality of life weights within the Zimbabwe context. Methods 2,384 residents in randomly selected small residential plots of land in a high-density suburb of Harare valued descriptors of 38 health states based on different combinations of the five domains of the EQ-5D (mobility, self-care, usual activities, pain or discomfort and anxiety or depression). The English version of the EQ-5D was used. The time trade-off method was used to determine the values, and 19,020 individual preferences for health states were analysed. A residual maximum likelihood linear mixed model was used to estimate a function for predicting the values of all possible combinations of levels on the five domains. The model was fit to a random subset of two-thirds of the observations, with the remaining observations reserved for analysis of predictive validity. The results were compared to a similar study undertaken in the United Kingdom. Results A credible model was developed to predict the values of states that were not valued directly. In the subset of observations reserved for validation, the mean absolute difference between predicted and observed values was 0.045. All domains of the EQ-5D were found to contribute significantly to the model, both at the moderate and severe levels. Severe pain was found to have the largest negative coefficient, followed by the inability to wash and dress oneself. Conclusion Despite a generally lower education level than their European counterparts, urban Zimbabweans appear to value health states in a consistent manner, and the determination of a global method of establishing quality of life weights may be feasible and valid. However, as the relative weightings of the different domains, although correlated, differed from the standard set of weights recommended by the EuroQol Group, the locally determined coefficients should be used within the Zimbabwean context