Evolution of computer-based information systems and networks to support integrated health care delivery systems

As health care delivery systems become more integrated with an emphasis on community wellness and prevention, well-developed information infrastructures will be needed to support their activities. The article introduces several previously published independent models for the evolution of integrated delivery systems, computer-based patient records (CPRs), and health information networks as well as a summary model that illustrates the relationship among these entities and their somewhat parallel development.     

Overview of screening: where we are and where we may be headed

This volume of Epidemiologic Reviews continues a discussion about screening within the evidence community that has been going on for many years. From various perspectives, the authors of these reviews consider the benefits and harms of screening for multiple conditions; the balance between benefits and harms (and costs) is often not clear. With few exceptions, the contribution of screening to improving the health of the public is small, yet it has become a popular and growing form of prevention. It may be that we are learning that the magnitude of benefit from screening is less than we hoped, and the harms may be greater than we thought. Perhaps we should not think of screening as our primary prevention strategy but rather use screening to make a real, but limited contribution to population health for a few conditions. We might target screening to smaller subpopulations with the highest potential benefit and the lowest potential harm. The payoff for population health could be greater if we shifted some resources we now devote to screening to developing, testing, and implementing alternative approaches to preventing the important threats to population health. There needs to be a wider discussion about these issues with the public.     

Ethnic minorities and weight control research priorities: Where are we now and where do we need to be?

Within the overall obesity epidemic, the burden of obesity and related health problems is particularly high among African Americans, Hispanic/Latino Americans, American Indians, and Pacific Islanders—both children and adults. The often asked question of what types of obesity interventions work in these populations reflects uncertainty about how applicable standard interventions are to diverse socio-cultural groups and socio-environmental contexts. A meta-analysis in this issue of Preventive Medicine (Seo and Sa, 2008. A meta-analysis of psycho-behavioral obesity interventions among US multiethnic and minority adults) includes selected multi-ethnic and minority-focused studies that in total had 40% minority participants. Although the authors' conclusions were congruent with current general guidance for weight loss programs, insights about how to intervene with minority populations were limited by the small amount and nature of the available evidence. Ethnic minorities in the aggregate are now a third of the U.S. population. We should be purposeful in identifying research needs and quality standards for conducting and reporting studies with these populations and in motivating related research. Improving the relevance to and quality of evidence on obesity prevention and treatment for a more diverse set of populations will also improve the weight control literature as a whole.     

Designing health information delivery systems for Puerto Rican women.

Although health information is important to the prevention of much illness, the health information needs of Puerto Rican women remain unaddressed, according to the results of this phenomenological study. Through audiotaped interviews, 21 women evaluated various sources of health information. Analysis of the data revealed which health information sources they considered trustworthy and nontrustworthy. Health care providers were found to be one of the least helpful sources, as personal interactions were often hurried and inattentive to women's needs. Yet, the women were able to present a vivid portrait of a culturally sensitive community environment conducive to the presentation of health information. Implications include the importance of including cultural values in any health information setting, as well as the importance of building cultural bridges between health educators and Puerto Rican women. More research is needed to examine community efforts to enhance health information sources for this population of women.     

Family Medicine in South Africa: where are we now and where do we want to be?

Objectives: This paper outlines the development of family medicine in South Africa with special reference to the process leading to the recognition of this discipline as a medical specialty. It also examines the constraints under which the discipline has had to function, considers where the discipline should be, seeks to identify the barriers to its further development and suggests ways in which to overcome these.

Methods: A short review was carried out of the available South African literature to record the advancement of the discipline and the international literature was searched for articles supporting this direction.

Results: The situation in South Africa is complicated by the existence of many doctor groupings claiming to represent the generalist and the perception that family medicine only addresses the needs of middle-class citizens. A flawed consultative process leading up to the present stage has contributed to this perception.

Conclusions: The available literature supports the establishment of family medicine as a speciality. Developments in South Africa, such as raising the status of Family Medicine and creating a compulsory rotation through family medicine as an extended internship and the creation of registrar posts in family medicine will advance the discipline in a positive manner, whilst possibly attempting to resolve the medical migration issues that are presently destroying Sub-Saharan Africa's health services. Eur J Gen Pract 2005;11(3):127–30.     

Computers and education: Where we are and where we might be going

This article examines the recent rapid innovation of micro-computers into schools and the range of uses to which they may be put. A number of issues arise from this, both specific in the sense of the challenges (or problems) this creates for the teacher and general issues such as the control and direction of the innovation. Finally, some speculation will be made on possible long-term developments, not just on formal education but in its relationship with the wider society.     

Diet and cancer prevention: where we are, where we are going

The European Prospective Investigation into Cancer and Nutrition (EPIC) was specifically designed to investigate the relationship between diet and cancer, with the aims of making a significant contribution to the accumulated scientific knowledge, trying to overcoming limitations of previous study. We present the most relevant results obtained so far for the most frequent cancer sites. EPIC is a multicenter prospective study carried out in 23 centers from 10 European countries: Denmark, France, Germany, Greece, Italy, the Netherlands, Norway, Spain, Sweden, and the United Kingdom, including 519,978 subjects (366,521 women and 153,457 men), most aged 35-70 years. Consumption of fruit is negatively associated with cancer of the lung but probably not with prostate cancer and breast cancer. Consumption of vegetables, mainly onion and garlic, probably reduces the risk of the intestinal stomach cancer but probably is not associated with cancer of the lung, prostate, and breast cancer. Consumption of red and processed meat is positively associated with colorectal cancer and with non-cardia stomach cancer in those infected by Helicobacter pylori. Fish intake is negatively associated with colorectal cancer risk. High alcohol intake increases the risk of breast cancer. These first results from the EPIC study on main food groups and most frequent tumors have made a significant contribution to the already accumulated evidence and, in combination with data from other prospective studies, provide the scientific knowledge for appropriate public health strategies aimed at reducing the global cancer burden.     

Nutritional support in oncologic patients: where we are and where we are going

The use of nutritional support in cancer patients has evolved since its introduction in the clinical practice 40 years ago. Both parenteral and enteral nutrition are now increasingly integrated within the main oncologic strategy with the aim of making surgery, chemotherapy and radiation therapy more safe and effective. This requires a better awareness of the inherent risk of starvation and undernutrition by the surgeons, medical oncologists and radiologists, the ability to implement a policy of nutritional screening of cancer patients and to propose them the nutritional support in a single bundle together with the oncologic drugs. Four different areas of nutritional intervention are now recognized which parallel the evolutionary trajectory of patients with tumour: the perioperative nutrition in surgical patients, the permissive nutrition in patients receiving chemotherapy and/or radiation therapy and the home parenteral nutrition which may be total (in aphagic-obstructed-incurable patients) or supplemental (in advanced weight-losing anorectic patients). Since cancer is a common disease and the continuous progress in medical therapy is changing its natural history, with more and more patients entering in a chronic and finally incurable phase where nutrition is determinant for survival, we can expect an increased demand for nutritional support in the next future.