Epidemiology of immediate and early trauma deaths at an urban Level I trauma center

The objective of this study is to identify and differentiate the injury patterns and causes of death among patients who died within the 1st hour and those in the period between 1 and 48 hours after hospital admission. Information was collected from the 1994 to 1996 trauma data base at an urban Level I trauma center. The records of 155 trauma patients who died within the 1st hour (immediate trauma death, ITD) and between 1 and 48 hours (early trauma death, ETD) were examined retrospectively. Total and constituent Injury Severity Score (ISS), Trauma Score (TS), and Glasgow Coma Score were analyzed. ITDs constituted 49 per cent of all deaths within 48 hours. Blunt mechanisms accounted for 37 per cent of ITDs and 40 per cent of ETDs (not significant), whereas penetrating trauma accounted for 59 per cent of ITDs and 56 per cent of ETDs (not significant). Exsanguination most commonly caused death among ITDs (54%) and head injury (51%) among ETDs (P < 0.01). Patients who died within the 1st hour had higher ISS (42.6 +/- 23.2, P < 0.03), lower TS (1.7 +/- 1.9, P < 0.0001), and lower Glasgow Coma Score (3.1 +/- 1.1, P < 0.0001) than those who died after the 1st hour. Patients with ITD had a significantly worse chest ISS than those with ETD (47.4 +/- 28.6 vs 19.0 +/- 19.1, P < 0.0001). We conclude that 1) ITD is caused primarily by exsanguination, whereas ETD is largely due to the sequelae of severe neurologic injury; 2) ITD has a significantly lower TS and higher ISS than ETD; and 3) thoracic injuries are more severe among patients with ITDs than among those with ETDs. The severity of thoracic injury among ITDs suggests that rapid surgical intervention is critical during the resuscitation of these severely injured patients.     

Engineering polysaccharides for biosorption of heavy metals at oil/water interfaces

Self-inflicted burns are a regular source of admissions to burns units world wide. This study examines the characteristics and outcomes of those who deliberately burn themselves. The medical records of all patients admitted to the Royal Brisbane Hospital Burns Unit and identified as having suffered a self-inflicted burn between 1990 and 1995 were reviewed. The records of patients who doused themselves with flammable liquid between 1984 and 1995 were examined as a separate group. Of 1072 admissions there were 44 cases (4.1 per cent) of deliberately self-inflicted burns. Average age was 30 yr with an average total burn surface area (TBSA) of 30 per cent (range 1-98 per cent). Schizophrenia, depression and personality disorder were diagnosed in 71 per cent. Alcohol intoxication was common in the rest. Suicide attempters were almost all male and the majority (60 per cent) were diagnosed with a major psychiatric illness. Self-mutilators suffered much less serious burns and none died. Self-inflicted burns accounted for 24 per cent of burns admitted to the intensive care unit. Self-immolation with flammable liquid resulted in severe burns with a 45 per cent mortality. A number of differences was demonstrated between those patients who had attempted suicide and those who had deliberately burnt themselves without suicidal attempt. Self-immolators constitute a considerable proportion of major burns admitted to this unit.     

Trauma mortality patterns in three nations at different economic levels: implications for global trauma system development

BACKGROUND: Whereas organized trauma care systems have decreased trauma mortality in the United States, trauma system design has not been well addressed in developing nations. We sought to determine areas in greatest need of improvement in the trauma systems of developing nations. METHODS: We compared outcome of all seriously injured (Injury Severity Score > or = 9 or dead), nontransferred, adults managed over 1 year in three cities in nations at different economic levels: (1) Kumasi, Ghana: low income, gross national product (GNP) per capita of $310, no emergency medical service (EMS); (2) Monterrey, Mexico: middle income, GNP $3,900, basic EMS; and (3) Seattle, Washington: high income, GNP $25,000, advanced EMS. Each city had one main trauma hospital, from which hospital data were obtained. Annual budgets (in US$) per bed for these hospitals were as follows: Kumasi, $4,100; Monterrey, $68,000; and Seattle, $606,000. Data on prehospital deaths were obtained from vital statistics registries in Monterrey and Seattle, and by an epidemiologic survey in Kumasi. RESULTS: Mean age (34 years) and injury mechanisms (79% blunt) were similar in all locations. Mortality declined with increased economic level: Kumasi (63% of all seriously injured persons died), Monterrey (55%), and Seattle (35%). This decline was primarily due to decreases in prehospital deaths. In Kumasi, 51% of all seriously injured persons died in the field; in Monterrey, 40%; and in Seattle, 21%. Mean prehospital time declined progressively: Kumasi (102 +/- 126 minutes) > Monterrey (73 +/- 38 minutes) > Seattle (31 +/- 10 minutes). Percent of trauma patients dying in the emergency room was higher for Monterrey (11%) than for either Kumasi (3%) or Seattle (6%). CONCLUSIONS: The majority of deaths occur in the prehospital setting, indicating the importance of injury prevention in nations at all economic levels. Additional efforts for trauma care improvement in both low-income and middle-income developing nations should focus on prehospital and emergency room care. Improved emergency room care is especially important in middle-income nations which have already established a basic EMS.     

The last 10 years in a burn centre in Ankara, Turkey: an analysis of 5264 cases

This is a retrospective study analysing 5264 patients treated in the burn centre at Gülhane Military Medical Academy from 1 January 1986 to 31 December 1995. Our burn centre is not only the first, but one of the best established and supported in Turkey. Our present study has the largest patient group of other previously published studies from Turkey. Of the total patients studied, 4464 patients had minor burns and were treated on an outpatient basis and 800 patients had moderate to major burns. Although our centre is in a military area in Ankara, only 1047 (20 per cent) patients were military personnel and the military-related burn causes comprised only 6 per cent of the total. The remaining 4217 (80 per cent of the total patients) were civilians. Flame injuries were also more frequent in military patients than civilians. Minor burns were most common in the age group 0-10 years old (40 per cent) and moderate to major burns in the age group 21-30 years (54 per cent). Scalds were the main cause of paediatric burns. Male patients were dominant. The overall mortality among inpatients was 18.2 per cent and mean total body surface area (TBSA) was 57.6 per cent in patients who died. 134 patients demonstrated inhalation injury and 82 per cent of these patients died. The epidemiological pattern of our patients is similar to that in other studies from developed countries, although some ethnic causative factors could be found. Our study indicates that emergency measures should be taken to prevent flame injuries at military barracks and industrial workplaces and scalding accidents to children at home and throughout the country.     

Categories of attempted suicide: a longitudinal study

A series of 151 index suicide attempts was categorized on the basis of situation and motivation: (a) 56 per cent occurred in a state of heightened emotionality due to a relatively limited stress;(b) 9 per cent were characterized by a life crisis which seriously challenged the patient' emotional homeostasis; and (c) 35 per cent attempted suicide in relation to the symptomatology of a pre-existing serious psychiatric disorder. At the time of first contact, usually in the general hospital emergency room, 69 per cent were sent home, the remainder being admitted for medical care (18 per cent) or transferred to a psychiatric hospital (13 per cent). In follow-up ambulatory care, successful referral correlated with the intensity of staff efforts during the early post-attempt contacts. The findings suggest that a brief hospitalization, perhaps two to three days, might be regularly utilized as a bridgehead for further ambulatory care, particularly for stress category patients with a high appointment failure rate. In a two-year follow-up, 16 of the 151 index cases re-attempted and two committed suicide. At the time of the index attempt, 24 (16 per cent) were in ongoing treatment. Among these 24 patients were many substance abusers and prior attempters as well as the two committed suicides of the follow-up period. Ongoing treatment should be weighed as a high risk factor suggesting particular caution in arranging the disposition for such patients.     

Imaging of the recurrence of colorectal cancer

'Joy-riding' is the term used, somewhat inappropriately, for the offence of taking a vehicle without the owner's consent. In certain areas, mainly deprived inner-city estates, there has been an increase in this crime. The aim of this study was to investigate its impact on the workload of an inner-city teaching hospital's busy accident and orthopaedic departments. In this prospective study, all patients admitted to hospital as a result of road-traffic accidents (RTAs) were identified during a 9 month period. A total of 1576 patients were admitted to the trauma unit. One hundred and fifty-two admissions were as a result of RTA and 20 (13 per cent) of these patients had injuries as a result of car crime. Of this group, eight were severely injured (ISS > 16) and six of these were innocent bystanders. Three patients (one joy-rider and two innocent bystanders) died as a result of car crime. The average length of hospital stay was 12 days (1-62 days) and the hospital in-patient costs were estimated to be at least 5200 pounds per patient. Injuries related to car crime results in a significant amount of work and financial cost to the National Health Service.     

Evaluation of the direct cost of trochanteric fractures in the elderly

PURPOSE OF THE STUDY: The cost effectiveness of trochanteric hip fractures in 1995 at Pitié-Salpétrière Hospital in Paris has been thoroughly analysed. The aim of this retrospective study was to identify the factors responsible for the variation in the treatment cost of those fractures. MATERIAL AND METHODS: Cost, Hospital stay, functional status, ASA score, mental status and surgical treatment were analysed in 74 patients aged over 60 years old. RESULTS: The mean cost per patient was 23,901 FF divided as follows: 8.5 per cent for preoperative care, 40.5 per cent for surgical procedures, 51 per cent for post-operative care. The mean hospital stay was 18 days. The cost of hospital personnel (44 per cent) and medical materiel (26 per cent) were the two main sources of hospital expenses beside medical investigations (11 per cent), hostelry (8 per cent), blood transfusion (6 per cent) and drugs (5 per cent). DISCUSSION: The duration of hospital stay was the only factor that affected statistically the mean cost per patient. Furthermore, factors related to the patient as age, sex, place of residence prior to admission, functional status, ASA score, mental status, had no influence on cost variation. CONCLUSION: Therefore, the best way to reduce the cost of trochanteric fractures treatment is to develop convalescence structures to avoid a lengthy and costly hospital stay and to minimize the abuse utilization of medical materials.     

Suspected paediatric pesticide poisoning in the UK. II--Home Accident Surveillance System 1989-1991

1. Between 1989 and 1991, 121,708 children less than 10 years old attended 22 Accident and Emergency (A & E) Departments in the UK as a result of an accident at home; 6,478 of these were cases of suspected poisoning. 2. Two hundred and fifty (124 boys and 126 girls) of 6,478 cases involved pesticides. Forty two per cent of these children were thought to have been poisoned by rodenticides, 33% by a different animal poison, 13% by an herbicide or fungicide, 7% by creosote and 5% by mothballs; a pattern similar to that observed in previous years. 3. Fifty-seven of 250 children (23%) were admitted to hospital. The proportion of children admitted to hospital between 1989 and 1991 is smaller than that observed between 1982-1988 (37%). Forty-six per cent of children were discharged home within one day and 95% within 2 days, whereas between 1982 and 1988 only 35% of children were discharged within one day. No child died during the study confirming the low morbidity. 4. Using these data we estimate that between 1989 and 1991 approximately 1,500 children annually attended an A & E Department in the UK with a diagnosis of suspected pesticide poisoning and that some 350 children were admitted each year.     

A sudden awakening from a near coma after combined intake of gamma-hydroxybutyric acid (GHB) and ethanol

OBJECTIVE: The excess of pediatric emergencies going to hospitals has been the subject of many studies in Spain and, on some occasions, this problem has attributed to the inefficiency of pediatric primary care. Our main objective was to evaluate whether or not our community health center is an efficient filter for hospital emergencies. PATIENTS AND METHODS: We conducted a prospective one year long study of all pediatric emergency demands within our normal office hours (workdays, from 08:00 to 21:00 hours). RESULTS: The total number of emergencies amounted to 1,294, with an average of 5.78 per day. The largest inflow occurred in September and the lowest in August. Most of the emergencies were between 16:00 and 19:00 hours. Fifty percent of the patients were under 4 years of age. We made 86 different diagnoses according to the WONCA classification. Only 10 diagnoses came with a frequency superior to 3%, and 60% of the emergencies were related to one of these 10 diagnoses. Of all pediatric emergencies, 94.7% were completely resolved by us. Only 60 patients (4.6%) were sent-on to hospital emergency services. Among these patients, 40 required traumatological or surgical attention, 5 ophthalmological care, 3 otorhinolaryngological care, and only 12 exclusively needed pediatric attention. In 55.7% of the cases there was no reason to use the emergency channel. CONCLUSIONS: During our office hours, our community health center is an efficient filter for hospital pediatric emergencies.     

Interdisciplinary centers for tobacco-related cancer research--a health policy issue

The role of barbiturate therapy in the development of pneumonia in head trauma patients in the intensive care unit of a university hospital was studied retrospectively. A total of 151 ventilated head trauma patients were included in the study. Intravenous thiopentone was administered to 75 patients (Group A), and 76 patients were managed without thiopentone therapy (Group B). Pneumonia was diagnosed when a new persistent pulmonary infiltrate appeared, with at least two of the following: (a) fever greater than 38 degrees C, (b) a white blood cell count greater than 15,000/mm3, or (c) the presence of purulent bronchial secretions. On admission, there were no differences in the acute physiology and chronic health evaluation 2 revision (APACHE II) and Glasgow Coma Score between Groups A and B. Fifty-three per cent of the patients treated with thiopentone (Group A) developed pneumonia compared with 35% in Group B (odds ratio 1.85, 95% confidence interval 0.97-3.51). Gram-negative and Staphylococcus aureus organisms were the most frequently isolated in all cases. No differences in age, sex, APACHE II, Glasgow Coma Score, nutritional status or dexamethasone treatment were observed between the groups with and without pulmonary infection. In the multivariate analysis, prolonged mechanical ventilation before pneumonia and thiopentone treatment remained as the only independent risk factors for the appearance of pneumonia in head trauma patients (p = 0.001 for both). Nevertheless, thiopentone did not increase the rate of mortality in patients with pneumonia. In conclusion, head trauma victims treated with thiopentone have a greater risk for the development of nosocomial pneumonia independent of mechanical ventilation.     

Free revascularized jejunal loop repair following total pharyngolaryngectomy for carcinoma of the hypopharynx: report of 90 patients

Ninety patients with carcinoma of the hypopharynx underwent pharyngolaryngectomy and reconstruction with a jejunal free autograft. Fifty-five patients had primary surgery and 35 salvage surgery for recurrence after radiotherapy. Following primary surgery 28 patients had postoperative radiotherapy and 27 did not. Complications occurred in 51 per cent of patients, the most common being necrosis of the jejunal graft (19 per cent); 12 per cent developed significant stenosis and 4 per cent died in the perioperative period. Eleven per cent of patients developed a fistula. The total number of complications diminished as the experience of the unit increased. Median follow-up was 4.9 years. Of patients treated with primary surgery, 48 per cent developed primary site recurrence (at 3 years) and 53 per cent neck node recurrence (at 5 years). The tumour-specific 5-year survival rate for all patients was 42 per cent. Following primary surgery 28 per cent survived for 5 years and after salvage surgery the rate was 59 per cent. Positive resection margins and extensive neck disease adversely affected survival (P = 0.02 and P = 0.001 respectively). The free revascularized jejunal graft is a safe and predictable method of repair following total pharyngolaryngectomy.     

Anxiety and depression as a hidden problem in primary health care. Only one case in four identified

Of 374 unselected primary care patients assessed with the Hospital Anxiety and Depression (HAD) scale, 11.8 per cent rated themselves as suffering from anxiety, and 3.7 per cent as depressed. Clinically, 8 per cent were diagnosed as cases of anxiety, and 4 per cent as cases of depression, but agreement was very poor between these cases and those elicited with the HAD scale, only 25 per cent of the latter being identified by the primary care physicians. One third of the patients with a clinical diagnosis of anxiety and 47 per cent of those with diagnosed depression were offered appropriate treatment, usually medication with a selective serotonin re-uptake inhibitor (SSRI) and consultation with a medical social worker. The results were consistent with the expected prevalences, thus indicating anxiety and depression to be markedly under-diagnosed and under-treated, and suggest that there is a manifest need of consultation facilities and of further education among primary care physicians.     

Review of 1198 cases of penetrating cardiac trauma

BACKGROUND: This study was a clinicoforensic analysis of the prevalence and outcome of traumatic cardiac injuries in Durban. METHODS: Between 1990 and 1992, 1198 patients sustained cardiac trauma. Seventy (6 per cent) reached hospital alive and 1128 (94 per cent) were taken directly to the mortuary. Seven hundred victims had suffered stab wounds, 494 gunshot wounds and four blast injuries. Gunshot injuries increased from 34 per cent in 1990 to 50 per cent in 1992. The mean (s.d.) age was 30.5 (5.4) years and the majority (91 per cent) were men. RESULTS: Thirty-five (50 per cent) of those who reached hospital alive died, including all four gunshot victims. Significant factors associated with survival were isolated injury, the presence of cardiac tamponade (univariate and multivariate analysis), right ventricular injury, single cardiac chamber injury and absence of pleural breach (univariate analysis alone). Delay in operative intervention was associated with a higher mortality rate. When analysing the patients who did not reach hospital alive, 202 (18 per cent) with tamponade due to an isolated stab wound were identified as a subset who might have been saved with prompt treatment. CONCLUSION: An increasing number of gunshot injuries in combination with delays in reaching hospital and in receiving treatment accounted for the high mortality rate in this unselected series.     

Role of fine-needle aspiration biopsy and frozen section examination in determining the extent of thyroidectomy

Ten years' experience with neonatal necrotizing enterocolitis (NNEC) was reviewed retrospectively to determine long-term survival and quality of life and to analyze risk factors associated with in-hospital mortality. Institutional records were queried to identify all neonates who required emergent surgical intervention for NNEC. These records were then reviewed and survivors' families interviewed by phone to determine patient status, persistent gastrointestinal problems, and overall quality of life. Once identified, long-term survivors (LTSs) were compared to in-hospital deaths by the analysis of birth weight, gestational age, time interval from birth to diagnosis, indications for laparotomy, and extent of intestinal involvement. Between 1986 and 1996, 69 patients required surgical intervention for NNEC. Eleven patients were lost to follow-up. Of the remaining 58 patients, 31 were ultimately discharged home, with 28 patients having survived an average of 4.18 years. The acute, or in-hospital, mortality rate was 39.1 per cent. Infants who died did so within an average of 23 days postoperatively, and those who were discharged home required an average of 121 days of inpatient convalescence. Twenty-one of the 28 LTSs achieved a normal quality of life with no persistent health problems. One patient required a hepatic-intestinal transplant, and another six had minor problems with frequent diarrhea. Average birth weight, age at NNEC diagnosis, and gestational age were not significantly different between LTSs and those with acute deaths. Aggressive in-hospital care is warranted for infants with NNEC. The excellent quality of life achieved in 75 per cent of survivors implies that the expense of heroic surgical care for these seriously ill premature infants is a worthwhile investment.     

Acute and long-term outcomes of extremely injured blunt trauma victims

Long-term outcomes after blunt trauma remain poorly defined. The purpose of this study was to document such outcomes in extremely injured adults (Injury Severity Score > or = 50). From April 1990 to June 1993, 76 patients (5% of all trauma victims) had an ISS > or = 50 at a single trauma center. Thirty-five (46%) survived to hospital discharge. The mean duration of hospital stay was longer for survivors than for nonsurvivors (92 days versus 16 days, p < 0.001). Of the 35 survivors, 26% were discharged directly home, 60% to a rehabilitation hospital, 8% to a chronic care facility, and 6% to an acute care hospital. After a mean follow-up of 27 months, 6% had died, 9% refused participation, and the remaining 30 patients (91% of long-term survivors) demonstrated significant residual disabilities in physical, emotional, and mental health status. We suggest that extremely injured patients comprise a small proportion of blunt trauma victims, consume substantial acute care hospital resources, often survive, and yet frequently have residual disability. A reduction in this long-term disability may represent the greatest challenge in modern trauma care.     

Electrical injury and the frequency of cardiac complications

A retrospective review of the patients with electrical injuries admitted over a 5-year period was performed to establish the frequency of cardiac complications. There were 145 admissions during this time. A total of 128 (88 per cent) were low voltage injuries and 17 (12 per cent) were high voltage (> 1000 V) injuries. Of the 145 admissions, 104 (72 per cent) had a 12-lead electrocardiogram (ECG) recorded within 24 h of their injury. Of these patients, 73 (75 per cent) were then observed on a cardiac monitor for at least 24 h post-injury. Cardiac abnormalities were noted in four patients (3 per cent) during this period. Three patients had occasional ectopic beats which settled spontaneously over a 24 h period post-injury. The fourth patient developed atrial fibrillation (AF) after a high voltage injury which resolved following intravenous digoxin. Cardiac complications were more frequent in those who had experienced a loss of consciousness at the time of injury and in those who suffered a high voltage electrical injury. All of the patients with cardiac complications had these at the time of admission to hospital. This suggests that if there is no history of a loss of consciousness and the 12-lead ECG recorded on attendance at the hospital is normal, it is unlikely that the patient will go on to develop cardiac problems.     

Volleyball injuries presenting in casualty: a prospective study

With the aim of identifying patterns of burn injury, remediable risk factors, and policies in the overall surgical and medical management a retrospective review of 111 octogenarian burn victims admitted between 1983 and 1993 is presented. The mean age was 84 years, with the mean percentage body surface area burned (%BSAB) being 9.6 per cent (range 0.5-65 per cent). Contrary to expectations, the annual incidence appears to be declining, the possible reasons for which are discussed. Surgery was required in 69 patients; in 11 this was performed within 1 week of injury. When compared to the more traditional delayed surgical approach, early surgery conveyed no benefits in either mortality (early group, 18 per cent; delayed group, 13 per cent) or length of hospital stay (early group survivors, 38 days; delayed group survivors, 42 days). Medical and social problems were very common and led to an often difficult and frequently prolonged rehabilitation, with the mean length of hospital stay for all patients being 29 days. The mortality of the whole group was 26 per cent, the patients on average faring better than their predicted mortalities as derived using either the Baux index, the Bull table or the Abbreviated Burn Severity Score.     

The use and overlap of AED and general practice services by patients registered at two inner London general practices

BACKGROUND: The improvement of general practitioner (GP) availability has been suggested as a factor influencing the rise in attendance rates at accident and emergency departments (AEDs) in the United Kingdom, particularly in innercity areas. However, previous studies suggest that only 3-6% of patients attempt to contact their GP before attending the AED, and measures of the availability of appointments in the surgery are not associated with AED self-referral rates. AIM: To examine the overlap of services between general practice and AEDs, and the characteristics of patients who attend at both sites. METHOD: A prospective observational study, set in east London, of all AED attendances from two group practices located within two kilometers of the Royal London Hospital, over a seven month period in 1994. RESULTS: Of 1785 attendances analysed, 80% were self referrals. Rates of hospital admission (18.1%) and outpatient referral (9.5%) reflect national figures. There was a significantly higher proportion of attendance from those of white ethnicity among children under 16. Using the Sheffield process-based classification, 43% of adult attendances were categorized as primary care attendances. Within this category the rate of attendance declined with age. Twenty-five point eight per cent of primary care attendances occurred between 10.00 pm and 8.00 am. Among self-referrals to the AED, 16% were seen by their GP in the previous two weeks for a similar problem. Frequent attendance at the AED was associated with a significantly higher consultation rate at the GP surgery (F = 19.6, df = 5, P < 0.0001). Less than 2% of attendances were recalled to the AED for follow-up. A minority (14%) of attendances resulted in a communication with the GP. The seven-month AED attendance rates for the two practices were significantly different (72 per 1000 (95% CI 67-78) and 111 per 1000 (95% CI 105-116), despite similar practice organization and markers of social deprivation. CONCLUSIONS: AED attendance rates were below the national average. GP referral and admission rates to AEDs from inner urban practices mirror national rates. High rates of primary care attendance occurred in younger age groups, with more than expected occurring out of hours. The reduction in case follow-up within the AED must be supported by improvements in communication with GPs, and an expansion of practice-based nursing. Practices that are geographically close, and with similar sociodemographic features, may have different AED attendance rates. This has important implications for resource allocation in primary care.     

A survey of mortality in slaughter pigs during transport and lairage

Of 2.9 million pigs transported to seven slaughter plants in 1991 and 1992, 1781 (0.061 per cent) died in transit and 314 (0.011 per cent) died subsequently in the lairage. Overall mortality for both years was 0.072 per cent and mortality in 1992 was 0.066 per cent. There was little seasonal variation in the number of pigs dying in lairage, but more pigs died in transit in months when the weather was hotter. The relationship with temperature was curvilinear; above about 15 to 17 degrees C the detrimental effect of high temperatures was far more serious. In 1992, the year for which complete data were available, average mortality in the seven plants ranged from 0.045 to 0.093 per cent, but this variation was not related to the size of the plant. The number of pigs which died in lairage, rather than in transit, ranged from 4 to 21 per cent of all deaths in the different plants, and the average was 15 per cent. The variation might be related to differences in average lairage times or to the policies of individual plants with regard to moribund pigs. The survey provided no evidence that the mortality among transported pigs has increased over the last 20 years.     

Ethnic differences in coronary heart disease case fatality rates in Auckland

Data from the Auckland Coronary or Stroke (ARCOS) study for the years 1983 to 1992 were analysed to describe 28-day case fatality rates from coronary heart disease among Europeans, Maori and Pacific Islands people in Auckland, New Zealand. The case fatality rate was consistently higher in each age group and for both sexes among Maori and Pacific Islands people than in Europeans. Age-standardised case fatalities for Maori and Pacific Islands people were similar at around 65 per cent, compared with around 45 per cent among Europeans, and these differences were not explained by ethnic differences in possible underreporting of nonfatal myocardial infarction, in socioeconomic status, smoking, symptoms or past myocardial infarction. There was evidence of a more rapid progression of acute coronary events to a fatal outcome among Maori and Pacific Islands people, partly explained by delays in access to life support and coronary care: greater proportions of Pacific Islands people than Maori or Europeans who died did so within an hour of onset of symptoms (56 per cent of Pacific Islands people, 47 per cent of Maori, 45 per cent of Europeans). Pacific Islands and Maori people with acute coronary events took longer to reach a coronary care unit (mean times: Pacific Islands people 8.6 hours, Maori 7.4 hours, Europeans 6.7 hours, P < 0.05), although the median times were not significantly different; life-support units were used by a majority of Pacific Islands people and Europeans (57 per cent and 55 per cent, respectively), compared with only 46 per cent of Maori, but hospital care was similar for the three groups. Further qualitative and quantitative research is needed to investigate the reasons for these ethnic disparities in case fatality rates.