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Biomedical subjects

R Mullner

Publications and source records attributed to R Mullner.

51 records · Page 3Linked to original sources
PubMed1980

An evaluation of the Illinois trauma registry: the completeness of case reporting.

The Illinois Trauma Registry (ITR) was developed as the principal evaluative tool for the comprehensive set of medical programs known as the Illinois Trauma System. In order to determine the completeness of case reporting to the ITR, a 10% sample of traumatic injuries was drawn at 33 hospitals designated as Trauma Centers. An attempt was then made to link the cases found at the Trauma Centers with those in the ITR; theoretically, all cases found in the Trauma Center should appear in the ITR. Analysis reveals that the ITR is drastically underreported; for all 33 Trauma Centers combined, only 36.9% of the cases appeared in the ITR. On an individual hospital basis, completeness ranged from 0.0% (eight hospitals) to 83.3%. Inclusion in the ITR is significantly associated with the categorization of hospital emergency capability, the method of patient transport to the hospital, the mechanism of injury and subsequent admittance to the intensive care unit. Of particular interest for evaluative studies is the marginally significant difference between the case fatality rate as reported in the ITR (5.0%) and that found in the hospital (2.8%). Guidelines are suggested to improve the development, management and data quality of future registries.

Humans↗
PubMed1980

Inpatient medical rehabilitation: 1979 survey of hospitals and units.

This survey by questionnaire was conducted by the Hospital Data Center of the American Hospital Association. The survey universe consisted of 516 hospitals; of these, 416 (80.6%) completed the questionnaire. The responding hospitals are classified into 4 categories: 1) independent rehabilitation hospitals, 2) self-contained rehabilitation hospitals within larger medical centers, 3) defined rehabilitation units of institutions, and 4) no formalized units. The survey yielded information concerning: 1) utilization, and predicted future trends in utilization; 2) referral sources of admissions; 3) the areas to which patients are discharged (their homes, nursing homes, etc); 4) the classes of fulltime equivalent personnel and their relative proportions, and those types of personnel that hospitals would most like to hire if it were possible to do so; 5) the sources of payment for inpatient claims, and problems with reimbursement; and 6) other findings including the use of beds designated for rehabilitation for other types of patients, and the number of fulltime administrators and of fulltime medical directors.

Humans↗
PubMed1978

An evaluation of the Illinois trauma system.

The impact of the Illinois Trauma System is assessed in the Southernmost region of the state. A sample of vehicular injuries and deaths are compared for a four year study period: two years prior to system implementation (FY 1970-1971) and two years after system initiation (FY 1972-1973). Decreases in mortality rates are experienced at trauma hospitals in FY 1972-1973 while mortality rates at those hospitals which did not become trauma centers remained constant. Trauma hospitals also exhibit significant declines in mortality rates during weekends and for the age group 45 to 64. When examined on a statewide basis the Illinois Trauma System appears to have little impact on urban mortality rates but a substantial effect upon rural mortality rates.

Accidents, Traffic↗
PubMed1978

The estimated survival probability index of trauma severity.

An index of survival rates associated with ICDA injury codes was constructed with data from the 1973 Hospital Discharge Survey (HDS). Discharge records from three regions covered by the HDS allowed estimation of survival rates among patients suffering single injuries coded under 92 ICDA integers. These estimated rates were then applied to records from the fourth HDS region, including those for patients suffering multiple injuries: estimated survival probability index values were generated as the product of the single-condition survival rates for each patient's various injuries. Mortality rates predicted from the index values correlated well with mortality rates estimated for the universe of patients discharged in 1973 from the fourth region. The index is intended for retrospective analysis of discharge records as a possible approach to care evaluation.

Adult↗
PubMed1977

The Illinois Trauma System: changes in patient survival patterns following vehicular injuries.

To assess the impact of the Illinois Trauma Program on Region 5, Southern Illinois, samples of vehicular injuries and deaths were compared for a four-year study period: two years prior to system implementation (FY 1970-1971) and two years after system initiation (FY 1972-1973). Trauma center hospitals exhibited a statistically significant decrease in mortality rate during FY 1972-9173 while other hospitals (those in the region not designated as trauma centers) had no change in mortality rate. Decreases in mortality rates were statistically significant at trauma hospitals for weekends and patients between the ages of 45 and 64. The methodology of conducting such a study as well as the implications of the study are discussed.

Accidents, Traffic↗
PubMedDate not supplied

Difference in composition of personnel among government, voluntary, and investor-owned U.S. community hospitals.

The relationship between an organization's staff structure, particularly the relative proportions of its administrators and line staff, and the organization's size, ownership status, financial condition, and scope of services is a subject that has attracted a good deal of attention from organizational theorists. At the present time, the subject is especially important to the hospital industry because of widespread concern about hospital costs and interest in how personnel expenses contribute to these costs.

Administrative Personnel↗
PubMedDate not supplied

An investigation of institutional characteristics associated with response rates in mail surveys of community hospitals.

This paper describes the nature and strength of the relationship between six institutional characteristics of U.S. community hospitals and the rates of response of these hospitals to a nationwide survey conducted by the American Hospital Association (AHA). Furthermore, it demonstrates how one can calculate accurately the relative probability of response of hospitals with various combinations of these characteristics. The six characteristics studied were bed size, teaching status, AHA membership status, location within or without a Standard Metropolitan Statistical Area, investor or other form of ownership, and control by State or local government or by another type of organization.The six characteristics were treated as dichotomous variables throughout most of the analysis. Odds ratios were calculated for each variable as a preliminary measure of the strength of its association with response.The effects of confounding on those odds ratios were controlled for by multiple logistic regression, which estimates the probability of response of hospitals with given characteristics. A logistic odds ratio was calculated for each variable to estimate the independent effect that specified values had on the odds of responding. All variables except status as a teaching or nonteaching hospital were shown to have a significant relationship to response.Hospitals were divided into classes according to probability of response, and the probability of response was compared with actual rates of response in the survey. Both increase at equal rates. Similar results were obtained by applying this method to two other, dissimilar, surveys.This method is generalizable to other surveys and should prove useful to researchers wishing to increase response rates in their surveys of hospitals.

Health Status Indicators↗