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While much has been learned during the past three decades of research in the disaster field, there still are some major gaps in knowledge. The need for more and better research on the health aspects of disasters is especially noted. Often, research into the health aspects has been anecdotal in nature and suffers from poor documentation of human losses. However, there are valid research methodologies that can be adapted to better document losses, evaluate interventions, and set priorities for investments to reduce the burden on the health of the population caused by disasters.
Methods:
A number of data sources are used to demonstrate the potential uses of surveys in disaster health. The majority of the examples reflect data collected by telephone interviews following earthquakes in California.
Results:
By using comparable instruments, it is possible to track the changes in preparedness levels across time. Similarly, it is possible to compare injury rates or other health impacts across time, place, and disaster type. In addition, risk factors can be identified for health outcomes. For example, in the Northridge earthquake, those over age 60 years were three times more likely to be hospitalized or die as a result of injuries than were those aged 20–59 years. Interventions can be evaluated. Slightlyless than half of the respondents of the El Niño study had heard messages about preparing for the on-coming weather and their preparedness levels were not significantly different from those who had not heard about preparing for the weather.
Conclusion:
Surveys are useful tools for identifying and evaluating the health impacts of disasters.
Many organizations rally to areas to provide assistance to a population during a disaster. Little is known about the ability of the materials and services provided to meet the actual needs and demands of the affected population. This study sought to identify the perceptions of representatives of the international organizations providing this aid, the international workers involved with the delivery of this aid, the workers who were employed locally by the international organizations, the recipients, and the local authorities. This study sought to identify the perceptions of these personnel relative to the adequacies of the supplies in meeting the needs and demands of the population during and following the war in Bosnia-Herzegovina.
Methods:
Structured interviews were conducted with representatives of international organizations and workers providing aid and with locally employed workers, recipients of the assistance, and the authorities of the areas involved. Descriptive and inferential statistics were used to assist in the analysis of the data.
Results:
Eighty-eight interviews were conducted. A total of 246 organizations were identified as providing assistance within the area, and 54% were involved with health-related activities including: 1) the provision of medications; 2) public health measures; and 3) medical equipment or parts for the same. Internationals believed that a higher proportion of the needs were being met by the assistance (73.4 ±16.4%) than did the nationals (52.1 ±23.3%; p <0.001). All groups believed that approximately 50% of the demands of the affected population were being addressed. However, 87% of the international interviewees believed that the affected population was requesting more than it actually needed.
While 27% of the international participants believed that ≥25% of what was provided was unusable, 80% of the recipients felt that ≥25% of the provisions were not usable. Whereas two-thirds of the international participants believed that ≥25% of the demands for assistance by the affected community could not be justified, only 20% of the recipients and authorities believed ≥25% of the demands were unjustified.
Conclusions::
Many organizations are involved in the provision of medical assistance during a disaster. However, international organizations and workers believe their efforts are more effective than do the recipients.
Prior planning to meet the physical and mental needs of medical and emergency services responder, is a practical measure to reduce staff stress. This has the potential to improve both the operational efficiency of a disaster response and reduce the incidence of post-traumatic stress disorders in responders. Research is needed to define which interventions provide the greatest benefits to local responders.
Burnout among emergency medical personnel (emergency medical personne) is suspected, but largely unsupported in the literature. An investigation of the phenomenon of burnout and factors contributing to its existence are essential steps in designingeffective interventions.
Research Questions:
Three research questions were proposed: 1) Are EMP sensation seekers as measured by Arnett's Inventory of Sensation Seeking? 2) Are EMP burnt out as measured by Revicki's Work-Related Strain Inventory? 3) Is there a relationship between sensation seeking and burnout among EMP?
Methods:
Emergency medical personnel attending a statewide conference in Texas, USA in late 1996 completed 425 survey instruments measuring sensation seeking and burnout as well as demographic items. Survey instruments were included in each registrant's conference package. Completed surveys were deposited anonymously in labeled receptacles throughout the statewide conference site. Data collection ceased at the end of the conference.
Results:
Emergency Medical Personne had significantly higher sensation–seeking total and intensity sub–scale scores than the general public. Full–time employees reported more sensation–seeking than volunteers or part–time employees. The younger the Emergency Medical Personne, the greater were their reported sensation seeking tendencies. Emergency Medical Personne reported more burnout in 1996 than in 1991. The older the Emergency Medical Personne, the lower was the reported level of burnout. Emergency Medical Personne who sought counseling for a work–related event reported more burnout than those who did not. Paid full–time Emergency Medical Personne reported higher burnout than did volunteers. There was a weak but positive correlation between sensation seeking and burnout, suggesting that these two dimensions may be unrelated.
Conclusion:
The field of emergency medical services attracts sensation seekers, and Emergency Medical Personne today report more burnout than their counterparts did in 1991. Although Emergency Medical Personne appear to be high in sensation seeking, this dimension alone does not protect them from the effects of burnout.
Pulse-oximetry has proven clinical value in Emergency Departments and Intensive Care Units. In the prehospital environment, oxygen is given routinely in many situations. It was hypothesized that the use of pulse oximeters in the prehospital setting would provide a measurable cost-benefit by reducing the amount of oxygen used.
Methods:
This was a prospective study conducted at 12 ambulance stations (average transport times >20 minutes). Standard care protocols and paramedic assessments were used to determine which patients received oxygen and the initial flow rate used. Pulse-oximetry measurements (oxygen-saturation measured by pulse oximetry) were then taken. If oxygen-saturation measured by pulse oximetry fell below 92% or rose above 96% (except in patients with chest pain), oxygen (O2) flow rates were adjusted. Costs of oxygen use were calculated: volume that would have been used based on initial flow rate; and volume actually used based on actual flow rates and transport time.
Methods:
A total of 1,907 patients were recruited. Oximetry and complete data were obtained on 1,787 (94%). Of these, 1,329 (74%) received O2 by standard protocol: 389 (27.5%) had the O2 flow decreased; 52 had it discontinued. Eighty-seven patients (6%) not requiring O2 standard protocol were hypoxemic (oxygen-saturation measured by pulse oximetry < 92%) by oximetry, and 71 patients (5%) receiving oxygen required flow rate increases. Overall, O2 consumption was reduced by 26% resulting in a cost-savings of $0.20 / patient. Prehospital pulse-oximetry allows unncessary or excessive oxygen therapy to be avoided in up to 55% of patients transported by ambulance and can help to identify suboptimally oxygenated patients (11%).
Conclusion:
Rationalizing the O2 administration using pulse-oximetry reduced O2 consumption. Other health care savings likely would result from a reduced incidence of suboptimal oxygenation. Oxygen cost-saving justifies oximeter purchase for each ambulance annually where patient volume exceeds 1,750, less frequently for lower call volumes, or in those services where the mean transport time is less than the 23 minute average noted in this study.
— Define the mortality associated with extremely hot weather during the 04 July through 14 July, 1993 heat wave that struck the northeastern United States.
Methods:
Design — A rapid field assessment was used to compare mortality occurring during the heat wave to mortality occurring during a period in which there was no heat wave using copies of death certificates. The findings of the rapid field assessment were validated, and it was determined whether increases in mortality occurred in other metropolitan east-coast counties also affected by the heat wave, by reviewing computerized mortality files. Setting —Information was collected on all deaths occurring in Baltimore City, Maryland; Baltimore County, Maryland; Essex County, New Jersey; Newcastle County, Delaware; and Philadelphia County, Pennsylvania; during these specified study periods: 08–18 June (comparison period) and 06–16 July (heat wave study period), 1993.
Main Outcome Measures — Ratios for total mortality, cause-specific mortality, and variables such as age, sex, race, residence, and day and place of death, that were available from death certificates were calculated.
Results:
From the rapid field assessment, the following were observed: a 26% increase in total mortality and a 98% increase in cardiovascular mortality associated with the heat wave in Philadelphia. Data from the computerized mortality files showed an increase in total mortality in four of five counties examined and an increase in cardiovascular mortality in all five counties. The risk for death for those dying from cardiovascular disease increased significantly for people older than 64 years, for both sexes, and all races.
Conclusion:
Conclusion: As initially indicated by the Philadelphia Medical Examiner, there was excess mortality associated with a heat wave in Philadelphia. All other nearby counties examined also experienced excess mortality associated with the heat wave, although this excess was not recognized by the local health officials. The true impact of a heat wave that causes excess preventable mortality must be appropriately and rapidly ascertained. Using a national standard to certify a death as heat-related will provide the needed information rapidly so that public health resources can be more effectively allocated and mobilized to prevent further heat-related illnesses and death.
Behavioral and social science research suggests that job satisfaction and job performance are positively correlated. It is important that Emergency Medical Services managers identify predictors of job satisfaction in order to maximize job performance among prehospital personnel.
Purpose:
Identify job stressors that predict the level of job satisfaction among prehospital personnel.
Methods:
The study was conducted with in a large, urban Emergency Medical Services (Emergency Medical Services) service performing approximately 60,000 Advanced Life Support (Advanced Life Support) responses annually. Using focus groups and informal interviews, potential predictors of global job satisfaction were identified. These factors included: interactions with hospital nurses and physicians; on-line communications; dispatching; training provided by the ambulance service; relationship with supervisors and; standing orders as presently employed by the ambulance service. These factors were incorporated into a 21 item questionnaire including one item measuring global job satisfaction, 14 items measuring potential predictors of satisfaction, and seven questions exploring demographic information such as age, gender, race, years of experience, and years with the company. The survey was administered to all paramedics and Emergency Medical Technicians (Emergency Medical Technicians s) Results of the survey were analyzed using univariate and multivariate techniques to identify predictors of global job satisfaction.
Results:
Ninety paramedics and Emergency Medical Technicians participated in the study, a response rate of 57.3%. Job satisfaction was cited as extremely satisfying by 11%, very satisfying by 29%, satisfying by 45%, and not satisfying by 15% of respondents. On univariate analysis, only the quality of training, quality of physician interaction, and career choice were associated with global job satisfaction. On multivariate analysis, only career choice (p = 0.005) and quality of physician interaction (p = 0.05) were predictive of global job satisfaction
Conclusion:
Quality of career choice and interactions with physicians are predictive of global job satisfaction within this urban emergency medical service (Emergency Medical Technicians). Future studies should examine specific characteristics of the physician-paramedic interface that influence job satisfaction and attempt to generalize these results to other settings.
This descriptive research used a large, urban population-based data set for prehospital emergency medical transports to examine racial/ethnic patterns of access and utilization for several broad categories of emergency medical transport services.
Methods:
Fire department files of approximately 39,000 reports on service provision were used to establish rates of transport utilization per 1,000 population in 1990, the most recent year for which reliable citylevel census data were available. Data were categorized by three age groups (< 25 years 25–64years,≥ 65years), three racial/ethnic groups (non-Hispanic whites, African-Americans, Hispanics), and gender. Transport rates were computed for total utilization, trauma incidents, and incidents due to medical conditions. Racial/ethnic rates were analyzed for each age and gender group and age- and gender-standardized rates were analyzed and presented in a graphical comparison. Statistical analyses of racial/ethnic differences were conducted using Tukey-type tests of multiple comparisons of proportions, with significant differences evaluated at the p = 0.001 level of significance.
Results:
Significant differences between racial/ethnic groups in the utilization of emergency transport services existed for all pair-wise comparisons including comparisons by each of the three age groups and gender. For total utilization, unadjusted rates are highest for African-Americans (65.9/1,000) and lowest for Hispanics (25.8/1.000). Likewise, African-American rates were substantially higher for both gender groups and across all age groups. Categorized by gender and age group under age ≥ 65 years, non-Hispanic whites are observed to have the lowest rates for both males and females under the age 65 years, while Hispanics have the lowest rates in the group 65 years old However, when rates are age- and gender- standardized, compared to African-Americans and Hispanics, rates for non-Hispanic whites are significantly lower for total transports and for trauma and medically related transports (p = 0.001).
Conclusion:
Age- and gender- standardized rates for emergency medical transport were found to be lowest for non-Hispanic whites, moderately higher for Hispanics, and subsantially higher for African-Americans, who experienced transport rates nearly three times higher than were the rates for non-Hispanic whites. Further research is required to establish the extent to which racial/ethnic differences observed in this geographically restricted study reflect variations between racial/ethnic groups in the underlying need for services.
On 07 August, 1998, a terrorist's bomb exploded outside of the United States Embassy in Nairobi, Kenya. The explosion caused severe damage to the Embassy and surrounding structures, including almost complete collapse of the Ufundi building adjacent to the Embassy. The U.S. response to this tragedy included the deployment of medical, rescue, and law enforcement personnel to assist the Kenyan government. An integral component of this response was the deployment of an Urban Search and Rescue Task Force to aid in the location, extrication, and rescue of entrapped victims. This Task Force was sponsored by the Office for Foreign Disaster Assistance (OFDA), a branch of the United States Agency for International Development (USAID). The Task Force included a medical team composed of two physicians and four paramedics, whose purpose was to define, create, and provide a medical care system for rescuers and victims in the austere environment at the bombsite. As an international event involving a multinational response, the characteristics and requirements of this event differed in some respects from domestic disaster emergency responses, and the medical team adjusted their operating procedures accordingly.
Relief operations require capable resposible staff. This lesson discusses the types of staff and workers required. It stress the importance of employing locals an refugees infilling many of these positions and examines the role of volunteers, paid personnel, and expatriates and the issues involved.