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PubMed1994

The National Dairy Heifer Evaluation Project: a profile of heifer management practices in the United States.

The National Dairy Heifer Evaluation Project was a cooperative, USDA-sponsored project involving state agricultural departments, the Cooperative Extension Service, the National Agricultural Statistics Service, and the Animal and Plant Health Inspection Service. A series of retrospective and prospective descriptive surveys using a multiple list and area frame sampling technique were conducted. Information collected pertained primarily to dairy neonates and replacement heifers. Much of the study was related to observational information on health and management characteristics that can be related to the animals' long-term physical and economic performance. The data reflect herds representing 78% of the national dairy cow population. Average herd size was 86 milking and dry cows and 66 heifers. Many characteristics of these herds reflect accepted and recommended practices in the area of dairy replacement management and nutrition. Data summarized in this national study can be utilized to evaluate the impact of management practices on dairy operations.

Animal Nutritional Physiological Phenomena↗
PubMed2004

The role of the statistician in the Scottish Agricultural and Biological Research Institutes.

Several of the Scottish Agricultural and Biological Research Institutes carry out research on domestic animal health and welfare. Statistical services are provided by Biomathematics & Statistics Scotland, a sister research organisation. At one of these institutes, a statistician has been an integral member of the animal experiments and ethics committee for over 10 years, and each animal experiment is examined by the committee statistician as part of the review process. This paper will describe this review process, and then discuss those areas in which statistical advice has had most impact in the reduction of animal numbers. It is suggested that most benefit does not come from simple sample-size calculations, but rather from the application of the principles of good experimental design and close collaboration between the scientist and the statistician in the design and analysis of experiments. The final conclusion is that scientists welcome constructive, long-term statistical input, although budgetary issues can prove to be a barrier.

Academies and Institutes↗
PubMed1998

Implementation and evaluation of information desk services provided by library technical assistants.

Changes in the role of information services librarians and in the health care environment have required a rethinking of the provision of reference services at the University of Illinois at Chicago Library of the Health Sciences. This is a report of a new service offered after that analysis. An information desk staffed by twenty-five library technical assistants was established. Details of staff training, scheduling, and data gathering for this new service are provided. After eight months of operation, an evaluation of services provided by the Information Desk was conducted. A combination of evaluation methodologies, both quantitative and qualitative, has been used to determine overall staff performance. Results from analysis of service statistics, structured observations of real-time services operations, and questionnaires distributed to information services librarians and to patrons are presented. The findings from this study are discussed in terms of comparison with similar studies in other libraries and identification of future research studies. The results confirm the value of the Information Desk and support the decision to continue this service model.

Evaluation Studies as Topic↗
PubMed1996

The prevalence of noise-induced hearing loss in seamen.

Hearing was analysed in 231 seamen with the length of sea service longer than five years. Among 107 seamen in deck service, 86 seamen in engine service, and 38 seamen in radio and general services statistically significant differences in relation to age, total length of service and the length of sea service were not established. There were no differences in the degree of hearing loss among those groups of seamen either. Based upon calculated simple regression coefficients, a statistically significant correlation was established between age, total length of service or length of sea service with the average hearing loss at the frequencies of 500, 1000, 2000 and 4000 Hz in the left ear in seamen from all ship services. Correlation was best pronounced at 2000 and 4000 Hz. In seamen from deck, radio or general services, a significant multiple correlation was established between age, total length of service and length of sea service, and the degree of hearing loss at 4000 Hz in the left ear. The same correlation, likewise, was true of seamen from deck service at 2000 Hz in the left ear and at 4000 Hz in the right ear.

Adult↗
PubMed1994

Clustering of attempted suicide: New Zealand national data.

BACKGROUND: The extent to which clusters of attempted suicides occur is a significant problem that is complementary to the current available research on the clustering of completed suicide. However, little systematic research on clusters of attempted suicides exists. The present study examines the extent and nature of clustering of suicide attempts. METHOD: The occurrence of clustering of attempted suicide was examined in nationwide data for all New Zealand hospitals, obtained from the New Zealand Health Statistics Services for the years 1988-1990. The Scan statistic and Knox procedure were employed for testing the significance of clusters in time and time-space, respectively. RESULTS: The analyses indicated that significant time clustering occurred in younger age groups, specifically among 15-19 and 20-24 year olds. The results could not be accounted for by seasonal variations in admissions. Age specificity of time-space clusters emerged, exhibiting a similar pattern to that reported for completed suicides in the US. CONCLUSIONS: The results suggest a similar underlying mechanism for the clustering of parasuicide and completed suicides and provide support for the existence of contagion of suicidal behaviour. The implications for prevention are discussed.

Adolescent↗
PubMed1990

The teaching of health statistics: meeting the needs of a changing practice.

The findings of the study did support the faculty's hypotheses. First, only 50% of the hospitals retain responsibility for the statistical function. This finding was, however, affected by the size of the hospital, with 100% of the hospitals of 400 beds or less retaining such responsibility. Second, the findings showed that only 12.5% of the hospitals had entirely manual statistical systems. However, 50% of the hospitals did compile some statistics manually, including the daily hospital census and discharge service statistics. Finally, in looking at the UT Memphis statistics curriculum and those of 14 other medical record administration programs in the Southeast, the hypothesis that curricula did not mirror this changing practice was confirmed. Although 100% of the programs surveyed had students memorize statistical formulas, only 36% had students working with computers in the statistics course. Of the 14 programs, only 6 specifically covered QA of statistical data in the statistics course, and 9 did not deal at all with how to assess the adequacy of policies and procedures for gathering statistical information. As a result of these findings, UT Memphis has modified its statistical course to increase the emphasis on computerization, QA, and assessment of statistical policies and procedures. These changes will better prepare the UT Memphis graduate for the statistical responsibilities that they will face in the workplace.

Curriculum↗
PubMed1955

The art of otology.

Management of chronic ear infections dependent on recognition of the differences (pathological and clinical) between tympano-tubal lesions and attico-antral disease. Chronic suppurative otitis media as a reason for rejection for military service. Statistics obtained from the Ministry of Labour and National Service. Relative incidence of tympanic and attico-antral disease in a series of 500 hospital patients at the present time. Resistant chronic tympanic disease still a problem. Relation to acute suppurative otitis media. Recurrent and relapsing attacks of acute otitis media. Does early chemotherapy interfere with development of immunity?Problems presented by acute otitis media likely to be elucidated by the general practitioner rather than by the otologist. The general practitioner's opportunities for research in this clinical problem. Incidence of ear diseases in average general practice.Training of medical students in diseases of the ear, nose and throat. Methods of instruction followed in the teaching schools of Great Britain and Northern Ireland and attitude of the Examining Bodies to this subject. The contribution of otologists to the education of doctors.Some observations on facial paralysis. Importance of prognosis. Different criteria in early and late stages of paralysis. Reasons for abandoning the faradic-galvanic tests in the management of facial paralysis. Use of constant current square pulse stimulators in early days of facial paralysis. Electromyography of value in later stages.Present-day difficulties in acquiring skill for facial nerve surgery. Importance of the stylomastoid artery. Recent investigations on the blood supply of the facial nerve: gross vascular pattern and the interfascicular plexus. Further work necessary to relate these anatomical facts to the condition of Bell's palsy.

Acute Disease↗