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Bidirectional mereological reasoning in anatomical knowledge bases.

Mereological relationships--relationships between parts and wholes--are essential for ontological engineering in the anatomical domain. We propose a knowledge engineering approach that emulates mereological reasoning by taxonomic reasoning based on SEP triplets, a special data structure for the encoding of part-whole relations, which is fully embedded in the formal framework of standard description logics. We extend the SEP formalism in order to account not only for the part-of but also for the has-part relation, both being considered transitive in our domain. Furthermore we analyze the distinction between the ontological primitives singletons, collections and mass concepts in the anatomy domain and sketch how reasoning about these kinds of concepts can be accounted for in a knowledge representation language, using the extended SEP formalism.

Anatomy↗

[Early diagnosis and reasons for not administering thrombolytic therapy in acute myocardial infarct].

In Slovakia we are lacking data on early (before examination of serum markers of myocardial necrosis) pertaining to thrombolytic treatment (TLL) which is inevitable in case of acute myocardial infarction (AIM) as well as data on the reasons why TLL is not implemented. This why the authors analyze the results of completed comprehensive project Audit concerned with diagnostic and therapeutic procedures in patients with acute coronary syndromes during the pre-hospital and hospital stage (AUDIT). The investigation was a perspective multi-centre study. Data were collected from 3123 patients with AIM in 66 departments (in 64 health institutions) during Sept. 16 1997 till Sept. 15 1998. The group included patients admitted within 96 hours after the development of complaints with the diagnosis or suspicion of AIM and discharged with the diagnosis of a first/repeated AIM. Early diagnosis of AIM was made in 1736 (55.6%) patients. In the AUDIT study TLL was assessed in 1074 (34.6%) patients. A marked difference between the number of candidates for TLL and the number of patients with TLL where TLL was implemented requires that in analyses of TLL in patients with AIM attention should be paid also to reasons why it was not implemented. The most frequent cause why TLL was nor implemented was late admission of the patient to hospital (in patients who attended hospital < 6 hours, TLL was not implemented in 48.5%, after admission between 6 and 12 hours in 70% and in patients admitted > 12 hours in as many as 90.8% patients), equivocal indication of TLL (in 29.9% patients) and contraindications (in 16.1% patients). The presented results are priority data on the early diagnosis of AIM and reasons why TLL was not implemented. It is part of data essential needed for elaboration of a (national) programme of better care (management) of patients with AIM taking into account also economic factors.

Contraindications↗

[Comparable case finding percentages of osteoporosis despite diverging reasons for ordering bone densitometry by general practitioners and specialists].

OBJECTIVE: To assess the use of bone densitometry in practice. DESIGN: Retrospective. METHOD: General practitioners who had ordered bone densitometry for their patients were asked to fill in a questionnaire on the reasons for the request and the subsequent treatment they prescribed. For a similar number of patients from the outpatient clinics of general internal medicine and endocrinology, the medical records were examined to obtain the same information. RESULTS: In 9 months, general practitioners requested 150 bone density measurements; for 117 of these the data were complete. In one year, 150 measurements were requested by the outpatient clinics. Marked differences in the reasons for the request were seen in loss of body height, back pain and requests from the patient (indications for general practitioners) and in osteoporotic fractures and the use of corticosteroids (indications for specialists). The average result of the measurements, however, was the same, with mean T-scores in the lumbar spine of -2.26 and -2.19, respectively and case-finding percentages of osteoporosis of 21% on the basis of the lumbar spine and 40% on the basis of the spine or hip. Bone densitometry carried out after an osteoporotic fracture was associated with the lowest mean bone mineral density, followed by measurement on the basis of abnormal X-rays. Bone densitometry at the patient's request was associated with the highest bone density. The percentage of patients found to have osteoporosis turned out to be dependent on the site of measurement, the used reference ranges, and the method of reporting, especially for patients older than 70 years. When the bone density corresponded to a diagnosis of osteoporosis, nearly all patients were treated, mainly with a bisphosphonate. Treatment was also frequently started when the bone density was reduced, i.e. in case of osteopenia. Some patients with normal bone density were treated as well. The reason for such treatment was not always clear. CONCLUSION: General practitioners and specialists used different risk factors in deciding whether bone densitometry was indicated. However, the two groups used this diagnostic tool with equal efficiency, since both the percentages of osteoporosis detected and the average bone densities were the same.

Absorptiometry, Photon↗

Spatial mobility and reasons for migration of Japanese women.

This paper discloses, istly, the spatial mobility of Japanese women and its change mainly between 1970 and 1980, through comparison with the men's mobility, in respect of distance of movement, age patterns, and labor force status, using population census data. Secondly, the chief reasons for the migration of women by types of migratory flows are examined using the data derived from the survey on reasons for migration conducted in 1981 by the Land Agency of the Government of Japan. Results show that the spatial mobility of Japanese women is smaller than that of men in long distance movements but is almost the same in short distance moves, and that the age pattern of spatial mobility of the women is nearly the same between both distances of movement. Also, it is disclosed that the mobility of women not in the labor force is higher for the whole country but lower in metropolitan areas than that for men. The prime reason for the migration of women is employment, the as same as that for men for the whole nation, but this varies between the types of migratory flows.

Asia↗

[A qualitative study on the reasons why the rural people in Nan province use contraceptive].

The purpose of this study is to investigate the reasons that rural people in Nan Province choose particular contraceptive methods, and places of services. The study utilizes the data from the study on the Impact and Efficiency of the Family Planning Program in Thailand: Phase II, which applied in-depth interview and small group discussion techniques. Findings indicate that wanting to limit the number of children to 2, wanting to space pregnancy, the limit of land, the conflict with working situation, and economic hardship are the reasons for using family planning. The major sources of contraception are health center, community health office, village health volunteer, village health practitioner, the border patrol police unit, and the military unit including other government agencies in the areas. As for the reasons for choosing a particular contraceptive method, convenience in practice and on obtaining services, desire for more children and concern over side effects are important.

Asia↗

[Evaluation of the clinical diagnostic reasoning. Use of dynamic attractors as an alternative].

The purpose of this study was to apply diagnostic clinical reasoning, based upon cognitive teaching, to help the student develop their own mental structure of an ailment or disease. Such a structure is built as mathematical chaotic deterministic type that can be evaluated through identification of dynamic attractors. To achieve our purpose, clinical diagnostic reasoning skills of two groups of students was compared against those of an expert through revision of 17 clinical cases. Such revision, selection of relevant data, allows for construction of conceptual maps in which several dynamic attractors can be identified, based on the largest number of connections that stem from some concepts. In the majority of cases, statistical analysis showed similarity among types of connections established by the expert; several similar dynamic attractors could be identified, leading us to conclude that cognitive-based teaching of diagnostic clinical reasoning is useful in developing this type of skill, and that it can be evaluated through identification of dynamic attractors.

Cross-Sectional Studies↗

Gender differences in the reasons for participation in spouse sharing among the Okun in Nigeria.

This report examines the reasons for participation in spouse sharing among the Okun with a view to identifying some factors that may present particular obstacles to women and enhance their vulnerability to the practice. A total of 1029 sexually active respondents in 5 settlements where spouse sharing is being practiced participated in the questionnaire survey aspect of the study, while 82 respondents participated in the focus group discussions. About 65% of respondents reported having ale or alase and were involved in the practice of spouse sharing. Reasons for involvement in spouse sharing include the need for economic support, sexual satisfaction, increased social status, procreation, the problems of separation/divorce and widowhood. The focus group discussions revealed a possible exploitation of the gender-based economic weakness of the women by the men in the initiation and sustenance of the practice in the Okun communities. It is recommended that for any program to achieve a considerable reduction in the practice, differences in the reasons for participation in spouse sharing among the men and women must be documented with a view to solving those problems that compel women to participate.

Adolescent↗

[Reasons for discontinuing intravenous therapy associated with the time of in-situ permanence of peripheral venous devices].

This study aimed to relate the reasons for interrupting intravenous therapy and the time of in-situ permanence of venous devices. The results obtained showed that in 38 of the 75 punctures performed, the reason to interrupt the venous therapy took place after the end of the therapy and that time of in-situ permanence of peripheral devices varied from 24 to 48 hours. In 15 punctures, in which infiltration was the reason for interruption, the time of permanence was shorter than 24 hours. It is believed that the data gathered in this investigation should be analyzed by nursing professionals, aiming to enhance new educational programs in services related to intravenous therapy.

Catheterization, Peripheral↗

Five-year continuation rate and reasons for early removal of Norplant in Shiraz, Iran.

Norplant has been the focus of controversy in Iran because of its relatively high premature removal rate. This study assessed the reasons for Norplant removal and its 5-year continuation rate to clarify the determining factors on elimination of this method. Subjects were identified via a retrospective chart review of Norplant users in Shiraz, Iran who were followed for 5 years. The mean age and weight of acceptors were 23.6 +/- 4.1 years and 54.4 +/- 8.5 kg, respectively. The most common reasons for removal were menstrual disturbances and personal reasons (each 41%). The 5-year continuation rate was 45%; on average, Norplant capsules were in place for 4.1 +/- 0.09 years. Norplant has been shown to be an acceptable option in other Muslim countries, so the relatively high rate of removal in Iran could not be attributed to the Norplant itself, but is probably linked to other factors that are in need of improvement.

Adolescent↗

Documenting the reasons people have for choosing their food.

Understanding the reasons that people have for choosing their food, and why these choices vary, may affect the dietary advice and assumptions about the nutrient adequacy of future food intake. One group of respondents living in Jakarta, Indonesia completed two interviews with the same combined food frequency and qualitative technique, called Food Choice Map (FCM) over a one-month period. Another group of Indonesian respondents from a town in Java completed an FCM interview and a 24-hour recall interview. The Food Choice Map identified the same major foods as contributing to individual intakes as are identified by a 24-hr recall interview. The FCM also identified reasons for changes in food choice. The reasons for food choices varied less than the different food items chosen. The FCM links data on dietary behaviours with perceptions that respondents use to explain of those behaviours. Such data can be used to develop communication strategies for health promotion.

Adolescent↗

Uptake of influenza vaccination and the reasons for non-vaccination in the high-risk patients of Angus, Scotland.

OBJECTIVE: To ascertain the uptake of influenza vaccination, the main prompts to vaccination and the reasons for non-vaccination in the high-risk patients of Angus, Scotland. DESIGN: Prospective questionnaire survey. SETTING: A small rural district general hospital. SUBJECTS: General medical inpatients and outpatients. RESULTS: The overall uptake of vaccination was 44.8% (n = 250). The main prompts to vaccination were general practitioners (48.2%), the media (11.6%), practice and district nurses (8.9%), friends and relatives (8.9%) and posters at health centres and chemists (7.1%). The main reason for non-vaccination was a lack of awareness of high-risk status (50.7%). CONCLUSION: The uptake of influenza vaccination in the Angus region of Scotland is unsatisfactorily low. This is mostly due to a lack of knowledge regarding high-risk status, although other reasons, including concerns about the side effects of vaccination, are also important.

Female↗

Initial defaulting in the National Tuberculosis Programme in Ho Chi Minh City, Vietnam: a survey of extent, reasons and alternative actions taken following default.

SETTING: Ho Chi Minh City, Vietnam. AIM: To determine the extent of initial default in the NTP, the reasons for initial default, health seeking after initial default and treatment received at other health facilities. METHOD: Questionnaire-based interviews of patients who were diagnosed with sputum-positive TB in the NTP during 2000 and who did not register for treatment in the NTP. RESULTS: The initial default rate was 8.3%; 79% gave reasons related to the NTP working procedures or treatment strategy, while 17.5% gave reasons related to insufficient knowledge among patients about TB and/or the need for treatment. Sixty-five per cent had been treated with anti-tuberculosis drugs at other health facilities after default, of which 74% had been treated at fully private facilities. CONCLUSION: Initial default is mainly caused by some patients' negative perceptions of working procedures and/or treatment strategy in the NTP. The majority of these patients are treated in private clinics after default from the NTP. The NTP needs to improve patients' perceptions of the treatment strategy and develop more user-friendly services that enable more patients to access treatment and reduce the risk of patients receiving substandard treatment in the private sector.

Adolescent↗

The relative importance of reasons for tooth extraction in terms of potential tooth years of life lost (PYLL).

The aim of the present study was to introduce the potential tooth years of life lost (PYLL) approach to the analysis of data showing the incidence of tooth extraction according to the reason for extraction and to illustrate its use. Six sets of data from prospective nationwide questionnaire surveys of patients treated by systematic random samples of dentists in five European countries were translated into PYLL. Response rates ranged from 25 to 81 per cent and the number of extracted teeth from 959 to 29,397, according to the study. PYLL in Norway 1988 was calculated using the ages of 85 and 80 as cut-off points, or the average sex-specific remaining life expectancy at the age of extraction; otherwise the age of 85 was used. Mean PYLL for all reasons varied from 40.6 to 46.3 years for Norway in 1988 depending on the cut-off point used. For patients aged 21 and older PYLL85 ranged from 35.7 years for France in 1984 to 42.3 years for Sweden in 1959-61. Employing PYLL changed the rank order of the reasons for extraction based on the number of extracted teeth in some instances. It combined the two dimensions 'incidence of 'potential years of tooth function lost' into a continuous quantitative variable which was easy to understand and simple to handle analytically.

Adult↗

Attitude or access: reasons for not attending mammography in Northern Ireland.

Maximizing the uptake of mammography among the eligible population will be critical to the success of the national breast cancer screening programme. Although compliance may vary for different reasons from area to area, it has been suggested that making screening clinics more accessible may be an effective means of enhancing uptake. In the present study we undertook 600 interviews with women who had been invited for mammography to determine the main reasons given by women in Northern Ireland for not attending for mammography when invited, how these may have related to access factors and to discover their views on how the service might be improved. The most frequently cited reasons for non-attendance were related to feelings of indifference or ignorance of screening issues and to fear of pain or embarrassment. Although more non-attenders did not have access to private transport, few women (23/600) expressed a preference for more accessible clinics. The fact that non-attenders were more likely not to have had a recent cervical smear, adds weight to the notion that attitudes rather than access played the predominant role in influencing uptake in this sample. We have concluded that investment in flexible mobile screening units cannot replace the continued need for delivering effective advocacy to eligible women.

Breast Neoplasms↗

[Knowledge and attitudes among women in the Arab village regarding contraception and family planning and the reasons for having numerous children].

BACKGROUND: Families with numerous children (5 or more) are a common phenomenon in the Arab sector in Israel. Whereas the fertility rate of Jewish women is 2.6, Muslim women have a rate of 4.6. Research has found that approximately half of the children were the result of unplanned pregnancies. Among the risk factors for unplanned pregnancies are: low income, the woman's level of education and marriage at a young age. In Israel a number of studies have been conducted on the use of contraception, in general, and on the status of women in the Arab population. However, to the best of our knowledge, there has not yet been a study in which Arab women have been asked how they customarily act on the subjects of family planning and contraception and what their attitudes are vis-à-vis having numerous children. OBJECTIVES: The aim of this study was to examine to what extent family planning and use of contraception exist in the Arab population and to determine the reasons for having so many children. The reasons examined included: the couple's wishes, religious faith, knowledge concerning contraception, socio-economic status and education. METHODS: A detailed questionnaire was prepared, which included socio-demographic details and questions of knowledge and attitudes pertaining to family planning and contraception and the reasons for having numerous children. The questionnaire was completed by the clinic staff, who interviewed all the women, ages 20-45, who had 5 or more children. RESULTS: Three hundred and three Arab women were interviewed, out of a total of 391 who had 5 children or more (compliance rate of 77.5%). Sixty percent of these women were married before the age of 18 and most of them are housewives (96.4%). A total of 18.8% of the women had an education of 0-4 years, 66.5% had an education of 5-8 years and 14.8% received 9 or more years of education. Most of them (92%) claimed that the decision regarding the number of children was jointly made with their husband; 24.8% thought that breastfeeding prevents pregnancy, about half of them became pregnant while breastfeeding. As to contraceptives--6.9% are currently taking contraceptive pills; 60.8% use IUD; and 11.2% had tubal ligation, most of them during a Caesarian section. In a single-variable analysis, a significant correlation was found between the women with a low level of education and more than 7 children. As the educational level rises there are fewer children in the family (P < 0.001). A significant correlation was also found between the low education of the husband and a number of children greater than 7 (P < 0.004). It was found that there is a significant high rate of women with 6 or more children that had tubal ligation. In a multi-variable analysis of the logistic regression, it was found that independent variables that predict a number of children higher than 7 are tubal ligation and the woman's level of education. The probability of uneducated women having 7 or more children is 15.2 times greater than for women with high education. Similarly, the probability that women who underwent tubal ligation have 7 or more children is 5.8 times greater than women who used no contraception. CONCLUSIONS: This study reinforces findings from previous studies that indicate the connection between the parents' education, particularly the wife's education, and the number of children. Similarly, in the rural Arab sector in Israel, the woman's education is the most significant variable determining the number of children. Moreover, we have seen that only when the number of children is particularly high and the woman's age is high, she is persuaded to have tubal ligation, as opposed to other means of contraception. These results reinforce the approach, according to which there is great importance to the fact that women in the Arab sector should obtain a high school education and more, so as to be able to properly plan the size of their family.

Adult↗

Identification of dropout reasons in young competitive swimmers.

AIM: The purpose of this study was to examine reasons for discontinuing sport participation in Spanish competitive swimmers. METHODS: Sixty-two swimming dropouts (40 males and 22 females, ranging in age from 14 to 30 years) were administered the Questionnaire of Reasons for Attrition of Gould et al. RESULTS: The results of the survey indicated that having other things to do was the most important reason for attrition. Other items rated important were related to lack of fun, perception of failure or low skill, while low ratings were given to items related to achievement/status or affiliation. A significant multivariate effect was obtained for gender and for experience at dropout. Analysis of individual items by "t"-test demonstrated that females placed greater emphasis than males on excessive pressure, hard training, dislike of competition, not winning enough and not feeling important enough. Former swimmers with less experience at dropout rated interest in another sport as more important and being too old as less important than swimmers with more experience. CONCLUSION: The results of this study support the importance of negative factors related with aspects of the athletic environment that lead to discontinuing in competitive swimming.

Adolescent↗

The top 10 reasons why manuscripts are not accepted for publication.

This article discusses why many research projects that have been presented in abstract form are never published as full articles, and lists 10 reasons why manuscripts are not accepted for publication in Respiratory Care. Some of these reasons are easily avoidable or readily overcome. Included in this category is submission of manuscripts that do not correspond to the kinds of articles the Journal publishes, either in subject matter or in format. Poor writing impedes peer review and is unlikely to prejudice editors in an author's favor, although it is seldom the primary reason for rejection. Common deficiencies in the methods, results, and discussion sections prevent initial acceptance for publication but are at least potentially amenable to correction. More serious are fundamental defects in study design, which although correctable at the inception of a project, often doom the paper once the study has been completed. Two problems that are especially unfortunate for authors and potential readers alike are failing to revise and resubmit a manuscript after initial peer review and never preparing a full manuscript in the first place, after presentation of the work in abstract form. This special issue of Respiratory Care and other cited publications offer practical resources for authors to use in overcoming each of these problems.

Biomedical Research↗

Integration of electronic resources and communication technologies during Clinical Reasoning Learning sessions.

In the last few years, Clinical Reasoning Learning has been used during clinical training courses in many universities. The goal of this educational activity is to develop problem solving and diagnosis skills in medicine, using previously acquired medical knowledge. We propose the integration of educational resources and computer systems to help students during the reasoning process, and in order to prepare students to look for medical information. We also describe a Computer-Supported Collaborative Learning Environment that integrates Information and Communication Technologies in order to improve the Clinical Reasoning Learning Sessions.

Clinical Competence↗