Effect of monensin on the performance and nitrogen utilization of lactating dairy cows consuming fresh forage.

We conducted a lactation trial with a fresh forage diet in order to evaluate 1) the effects of monensin on nitrogen metabolism, and 2) the Cornell Net Carbohydrate and Protein System (CNCPS). Thirty Holstein cows in midlactation (eight fitted with ruminal fistulas) were gradually introduced to a fresh forage diet. A concentrate mix based on corn meal was fed before the a.m. and p.m. milking times 0730 and 1730 h, then the fresh forage was fed at 0830 and 1830 h. Fifteen cows each were allocated to a control (no monensin) and a treatment group receiving 350 mg/cow per day of monensin in the p.m. concentrate feeding. A 7-d fecal and urine collection period and a 3-d rumen sampling period were conducted with the fistulated cows. After the lactation study was concluded, the fistulated cows were fed forage regrowth and a 3-d rumen sampling period was repeated. Monensin increased milk production by 1.85 kg. Milk fat and protein concentrations decreased and milk fat and protein yields increased, but the effects were nonsignificant. Monensin did not significantly affect DMI. Ruminal ammonia and the acetate-to-propionate ratio decreased with the addition of monensin in both fed forages. Monensin decreased fecal N output, and increased apparent N digestibility by 5.4%. Because of the decrease in ruminal ammonia and increase in apparent N digestibility, we concluded monensin was sparing amino acids from wasteful rumen degradation with a fresh forage diet. The precision of the CNCPS in predicting performance was high (r2 = 0.76), and the bias was low (overprediction of 3.6%). These results indicate that the CNCPS can be used for dairy cows consuming fresh forage and gives realistic predictions of performance.

The disability paradox: high quality of life against all odds.

This paper builds on the work of Sol Levine to examine a disability paradox: Why do many people with serious and persistent disabilities report that they experience a good or excellent quality of life when to most external observers these individuals seem to live an undesirable daily existence? The paper uses a qualitative approach to develop an explanation of this paradox using semi-structured interviews with 153 persons with disabilities. 54.3% of the respondents with moderate to serious disabilities reported having an excellent or good quality of life confirming the existence of the disability paradox. Analysis of the interviews reveals that for both those who report that they have a good and those who say they have a poor quality of life, quality of life is dependent upon finding a balance between body, mind and spirit in the self and on establishing and maintaining an harmonious set of relationships within the person's social context and external environment. A theoretical framework is developed to express these relationships. The findings are discussed for those with and without disabilities and directions are given for future research.

Patient satisfaction with an emergency department asthma observation unit.

OBJECTIVE: To compare levels of patient satisfaction between the diagnostic and treatment protocols in an ED-based asthma observation unit (AOU) and those with standard inpatient hospitalization. METHODS: This was a prospective, randomized, controlled trial with a sample of 163 patients presenting to the ED with acute asthma exacerbations over a 30-month period. Eligible patients were those who could not resolve their symptoms after three hours of standard ED therapy. Patients were then randomly assigned to an ED-based AOU (experimental group) or to customary inpatient care (control group). Patient satisfaction and problems with care processes were assessed by standardized instrumentation at discharge in both groups. RESULTS: The AOU patients scored higher than those randomized to the inpatient hospitalization protocol on four summary ratings of patient satisfaction measures: received service wanted, recommendation of the service to others, satisfaction with the service, and overall satisfaction. The AOU patients reported fewer total number of problems with care received, and fewer specific problems with communication, emotional support, physical comfort, and special needs, than did the inpatient group. However, the AOU patients reported more problems regarding their knowledge of financial costs and liabilities for their service than did the inpatients. CONCLUSION: Patients were more satisfied and had fewer problems with rapid diagnosis and treatment in the AOU than they did with routine inpatient hospitalization. Since AOUs represent a new ambulatory service modality, patients would benefit from greater awareness of the costs and coverage for AOUs as compared with hospital inpatient care. These findings have important implications for the future short- and long-term success and feasibility of ED-based AOUs.

Peer intervention in case management practice.

Using peers as case managers in dealing with current and chronic public health problems such as substance abuse, gang violence, or the HIV/AIDS crisis has been shown to improve outreach efforts, monitoring, and outcomes in hard-to-reach populations. This article focuses on a case management strategy that uses peer modeling interventions to assist people in renegotiating their present life circumstances. Peer modeling engages peers of the client population as case managers and employs group-mediated, social control intervention strategies in the community to bring about positive changes in lifestyle and living conditions. The peer approach is an enhanced version of case management, utilizing the core activities of outreach, assessment, planning, linking, monitoring, and advocacy but adding peer-led, skill-based training activities, coupled with a system of positive incentives designed to encourage a more healthful lifestyle. To clarify this enhanced approach to case management, the authors present a matrix to illustrate how key case management activities might be enhanced through peer modeling interventions. We conclude by suggesting the circumstances in which an organization responsible for service delivery might consider using peer modeling in addressing difficult public health problems, and we discuss the advantages and disadvantages of such a strategy.

Health behavior changes in the United States, the United Kingdom, and France.

OBJECTIVE: To determine changes in health behaviors in the United States, the United Kingdom, and France over the previous two years. DESIGN: Cross-sectional survey of nationally representative samples. SETTING/PARTICIPANTS: Surveys conducted between June and November 1988 on persons aged 16 to 50 years in the United States (n = 1,940), the United Kingdom (n = 1,833), and France (n = 2,294) regarding health behaviors, attitudes toward health, and changes in health practices during the previous two years. MEASUREMENTS AND MAIN RESULTS: Using Bonferroni's adjustment for multiple comparisons, residents of the United States had significantly (p < 0.05) higher Quetelet indices and reported higher egg and red meat consumption, but had lower alcohol consumption, than did residents of either the United Kingdom or France. Americans were also significantly more likely to report attitudes accepting personal responsibility for their health and much more often endorsed the role of health behaviors (e.g., exercise) for decreasing the risk of cardiovascular disease. Changes in health behavior over two years were consistently more likely in the United States for weight loss, decreased alcohol consumption, decreased red meat and egg consumption, and increased exercise. Americans were also much more likely to have changed at least three health behaviors in the previous two years (United States 41.5%, United Kingdom 25.5%, France 13.8%, p < 0.002). A multivariate linear model confirmed the high likelihood of health behavior changes in the United States compared with the United Kingdom or France. CONCLUSIONS: The findings confirm that changes in health behaviors are continuing to occur in the United States, but remain comparatively modest in the United Kingdom and France. These international variations in health behaviors parallel differential declines in mortality rates in ischemic heart disease.

Who hasn't heard about AIDS?

This article analyzes who among the general population has not heard about AIDS despite intensive educational programs and widespread media attention about the syndrome. The data are drawn from a survey of the general public's knowledge, attitudes, and behavior toward AIDS in May-July, 1987 to establish a baseline for future educational interventions and to identify groups in need of special educational efforts. A total of 1540 interviews were conducted in Chicago and the surrounding six-county metropolitan area with adults between the ages of 18 and 60 in a two-stage cluster sample designed to compare blacks, whites, and Hispanics. Of the 1540 respondents, 49 (3.2%) had never heard of AIDS. Contingency table and logistic regression analyses indicated that lower educational levels and being Hispanic or Asian predict not having heard about AIDS. The results suggest the need for programs and intervention strategies that consider the special characteristics of these populations.

Anomalies in Soviet healthcare.

This paper focuses on recent developments in Soviet healthcare. Since consistent and reliable information on Soviet health practices and outcome measures is difficult to obtain, we use multiple sources, extensive interviews, and personal experience to analyze the current Soviet healthcare system. Where facts are conflicting, we point to anomalies between what observers read, are told, and what they see. Our focus is on the organization of Soviet healthcare, the place of the physician in Soviet society, the pressing set of current health problems, traditional and emergent strengths in the delivery system, contrasts with Western medicine, and the problems and inconsistencies we observed.

Social distance from the stigmatized. A test of two theories.

Attribution of responsibility and disruption of social interaction are two explanations proposed in previous literature for the existence of differential social distance from individuals with various types of stigmas. This paper tests the relative merits of the theories in explaining perceived social distance that individuals in the study expressed from a wide range of stigmatized conditions representing two general stigma types: the disabled and deviants. The research is based on a sample of professionals and managers in key decision making positions. Perceived social distance was measured by a modified Bogardus Scale. Respondents expressed greater social distance from deviants such as alcoholics and drug addicts than from the disabled such as paraplegics and the blind. Little support was found for the contention that attribution of responsibility determines variations in social distance across or within the two major stigma types of disability and deviance. Rather, results suggest that differential rejection stems from the disruption a stigma causes in social interaction.

Outcome of comprehensive medical rehabilitation: measurement by PULSES profile and the Barthel Index.

In view of current emphasis on evaluation of benefits derived from rehabilitation programs, it is important that there be easily replicated measures for demonstrating the efficiency and effectiveness of services provided, as well as for transmitting information on patient functional status when transferring service responsibilities from one agency or facility to another. The authors used the PULSES profile and the Barthel index to measure severity of disability and to monitor rehabilitation progress in a heterogeneous sample of 307 severely disabled persons in 10 comprehensive medical rehabilitation centers, geographically selected. Gains in functional independence were registered for up to 2 years after admission. Cutting points of PULSES score totals or Barthel score totals distinguished the degree of severity of disability. The 2 scoring modalities appear valid, reliable, and sensitive for describing functional abilities and change over a period of time. They can be applied both to medical records and direct observations, and staff of medical facilities can readily be trained in their use.

Admission and discharge indicators as aids in optimizing comprehensive rehabilitation services.

This paper describes the development of a theoretical cost effectiveness model used to optimize admission and discharge decisions in comprehensive rehabilitation centers. Rehabilitation progress and outcome is conceptualized in terms of functional gains due to treatment. The model is constructed with three variables: functional level at admission (Barthel), Barthel function gained per unit cost (BUC) and the percentage improvement in function from admission to discharge. The theoretical model is then tested with data from a random sample of 97 spinal cord injured and 132 focal cerebral patients drawn from ten leading comprehensive rehabilitation centers located across the continental United States. The basic structure of the model is supported by the data and the use of such models as aids in managing patients, evaluating services, planning new programs, and developing computer simulation models of rehabilitation cost effectiveness is discussed.