Low back pain in the United States: incidence and risk factors for presentation in the emergency setting

Background contextLow back pain is prevalent in the United States. At the present time, no large longitudinal study is available characterizing the incidence of this condition in the US population or identifying potential risk factors for its development.PurposeTo characterize the incidence of acute low back pain requiring medical evaluation in the emergency department and establish risk factors for its development.Study designCross-sectional study.Patient sampleUnited States population estimates.Outcome measuresIncidence rate ratios were calculated to determine the influence of age, sex, and race on the development of low back pain requiring emergent medical evaluation.MethodsThe National Electronic Injury Surveillance System was queried for all cases of low back pain presenting to emergency departments between 2004 and 2008. Incidence rate ratios were then calculated with respect to age, sex, and race. The chi-square statistic was used to identify statistically significant differences in the incidence of low back pain requiring emergent medical evaluation between subgroups.ResultsAn estimated 2.06 million episodes of low back pain occurred among a population at risk of over 1.48 billion person-years for an incidence rate of 1.39 per 1,000 person-years in the United States. Low back pain accounted for 3.15% of all emergency visits. Injuries sustained at home (65%) accounted for most patients presenting with low back pain. Low back pain demonstrates a bimodal distribution with peaks between 25 and 29 years of age (2.58/1,000 person-years) and 95 to 99 years of age (1.47/1,000) without differentiation by underlying etiology. When compared with females, males showed no significant differences in the rates of low back pain. However, when analyzed by 5-year age group, males aged 10 to 49 years and females aged 65 to 94 years had increased risk of low back pain than their opposite sex counterparts. When compared with Asian race, patients of black and white race were found to have significantly higher rates of low back pain. Older patients were found to be at a greater risk of hospital admission for low back pain.ConclusionAge, sex, and race are significant risk factors for the development of low back pain necessitating treatment in an emergency department.     

Pediatric burn injuries in Tehran, Iran

The objective of this study was to identify the epidemiologic features of pediatric burn injuries in western Tehran. Study subjects included all children up to the age of 15 years who were treated as inpatients at the Tohid Burn Center in Tehran between April 1995 and March 1998. Among the 3341 burns admitted to the Center over the 3-year study period, 1454 (43.5%) occurred in children less than 16 years of age. The overall case fatality rate for children was 16%, while the annual burn incidence rates ranged from 22.7 to 17.8 burns per 100000 child-years. The overall gender ratio (boys/girls) was 2.6. Children less than 2 years of age had the highest burn incidence and burn mortality rates. These findings will be used as a basis for developing targeted preventive programs to protect Iranian children from burns.     

Trends in burn admissions in Scotland during 1970–1992

This retrospective study involved analysis of the data of the inpatients discharged with a diagnosis of burns, from various hospitals in Scotland, during the period 1970–1992. There were 51350 such inpatients all over Scotland, with an average annual rate of 2233 cases. Overall burn incidence in actual numbers was 43.7 per cent in < 15 year olds, 41.2 per cent in 15–64 year olds and 15.1 per cent in ≥ 65 year olds. Burn rates per 100 000 population were highest in < 15 year olds and lowest in 16–64 year olds.

The pattern of burn admissions has changed. Since 1987 the highest numbers of burn inpatients were the 16–64 year olds, followed by children, then the elderly. There has been a gradual but sustained fall in burns admissions in all age categories. The downward trend was statistically significant (t = 8.48, 21 d.f., P < 0.001). Though the population of the elderly (≥ 65 year olds) increased by about 13 per cent, the burn admissions and all deaths due to burns did not reveal an upward trend. The population of the old (81 + year olds) increased by 60 per cent during the same period. The incidence of burns was above average when > 80 year olds were considered separately, approaching the levels found in children. However the rate and incidence of burns in the 65–80 year olds resembled that of the younger age group (16–64 year olds).

The total number of deaths due to burns and/or smoke inhalation has declined in all age groups and the decline has been statistically significant (chi-squared = 19.62, 1 d.f., P < 0.001). Maximum number of deaths occurred in ≥ 65 year olds (44 per cent), followed closely by 16–64 year olds (43.5 per cent), and 12.5 per cent of deaths in adolescents and children. The decline was due to improved management of burns and a decrease in the number of patients having large body surface area burns.     

Magnitude of impact and healthcare use for musculoskeletal disorders in the pediatric population: a population-based study

ABSTRACT: BACKGROUND: Although musculoskeletal disorders (MSD) are among the most prevalent chronic conditions, minimal attention has been paid to the paediatric population. The aim of this study is to describe the annual prevalence of healthcare contacts for MSD by children and youth age 0-19 years, including type of MSD, care delivery setting and the specialty of the physician consulted. METHODS: Analysis of data on all children with healthcare contacts for MSD in Ontario, Canada using data from universal health insurance databases on ambulatory physician and emergency department (ED) visits, same outpatient surgery, and in-patient admissions for the fiscal year 2006/07. The proportion of children and youth seeing different physician specialties was calculated for each physician and condition grouping. Census data for the 2006 Ontario population was used to calculate person visit rates. RESULTS: 122.1 per 1,000 children and youth made visits for MSD. The majority visited for injury and related conditions (63.2 per 1,000), followed by unspecified MSD complaints (33.0 per 1,000), arthritis and related conditions (27.7 per 1,000), bone and spinal conditions (14.2 per 1,000), and congenital anomalies (3 per 1,000). Injury was the most common reason for ED visits and in-patient admissions, and arthritis and related conditions for day-surgery. The majority of children presented to primary care physicians (74.4%), surgeons (22.3%), and paediatricians (10.1%). Paediatricians were more likely to see younger children and those with congenital anomalies or arthritis and related conditions. CONCLUSION: One in eight children and youth make physician visits for MSD in a year, suggesting that the prevalence of MSD in children may have been previously underestimated. Although most children may have self-limiting conditions, it is unknown to what extent these may deter involvement in physical activity, or be indicators of serious and potentially life-threatening conditions. Given deficiencies in medical education, particularly of primary care physicians and paediatricians, it is important that training programs devote an appropriate amount of time to paediatric MSD.     

An Assessment of the Hospital Disease Burden and the Facilities for the In-hospital Care of Trauma in KwaZulu-Natal, South Africa

Background

Trauma is a significant cause of morbidity and mortality in South Africa. The present study was designed to review the hospital trauma disease burden in light of the facilities available for the care of the injured in KwaZulu-Natal (KZN), South Africa’s most populous province. The primary outcomes were the annual hospital burden of trauma in KZN, determined through data extrapolation, and evaluation of the data in light of available hospital facilities within the province of KZN, a developing province. The data were obtained through review of the trauma load in relation to all emergency cases at all levels of hospitals.

Methods

Hospital administrators in KZN were requested to submit trauma caseloads for the months of March and September 2010. Caseloads were reviewed to determine the trauma load for the province per category using two extrapolation methods to determine the predicted range of annual incidence of trauma, intentional versus non-intentional trauma ratios and population-related incidence of trauma. The results were GIS mapped to demonstrate variations across districts. Hospital data were obtained from assessments of structure, process, and personnel undertaken prior to a major sporting event. These were compared to the ideal facilities required for accreditation of trauma care facilities of the Trauma Society of South Africa and other established documents.

Results

Data were obtained from 36 of the 47 public hospitals in KZN that manage acute emergency cases. The predicted annual trauma incidence in KZN ranges from 124,000 to 125,000, or 12.9 per 1,000 population. This would imply a national public hospital trauma load on the order of at least 750,000 cases per year. Most hospitals are required to treat trauma; however, within KZN many hospitals do not have adequate personnel, medical equipment, or structural integrity to be formally accredited as trauma care facilities in terms of existing criteria.

Conclusions

There is a significant trauma load that consumes vital emergency center resources. Most hospitals will need extensive upgrading to provide appropriate care for trauma. An inclusive trauma system needs to be formalized and funded, especially in light of the planned National Health Insurance for South Africa     

Fractures of the distal forearm in the Helsinki district

The incidence and some epidemiological features of fractures of the distal forearm in the Finnish population are described. An annual incidence of 36.5 per 10 000 was calculated for the population over 15 years of age. The incidence seems to vary within wide limits according to the season, and the patient's age and sex. The highest numbers were noted in women of 60-70 years of age. However, these marked differences in incidence are less evident in cases treated as in-patients. The figures do not differ much from those for Oslo, but are higher than those for Sweden or Great Britain.     

Utilization of orthopaedic services for hand and wrist conditions in a capitated population

BACKGROUND: The utilization of orthopaedic services (office visits and surgery) to treat hand and wrist conditions is not well known. In this study, we report the utilization rates for patients referred for orthopaedic treatment of hand and wrist conditions in a large population of individuals enrolled in a capitated insurance plan. METHODS: The study population consisted of individuals enrolled, between January 1998 and December 2001, in a capitated insurance plan that had an annual average membership of 135,188 during that period. This plan was serviced by an independent physician association of sixty-two orthopaedic surgeons who were responsible for all orthopaedic care. Data were collected prospectively in a centralized database as patients with various hand or wrist conditions were referred for orthopaedic services. Odds ratios were used to compare gender-specific and age-specific utilization rates. RESULTS: Overall utilization rates were 18.06 office visits and 6.47 surgical procedures per 1000 members per year. The most frequent hand or wrist conditions were fractures, carpal tunnel syndrome, tendinitis or tenosynovitis, and ganglion or synovial cysts. These four diagnoses accounted for 70% of all office visits and 71% of all surgical cases. Across all age groups, males had a significantly higher rate of utilization of office visits (p < 0.001). Between the ages of thirty-five and fifty-five years, utilization of office visits and surgery increased approximately linearly with age. CONCLUSIONS: A comparison of these data with those of previous reports indicates that approximately one of every ten patients who are referred for orthopaedic services has a hand or wrist condition, and nearly half will require surgery.     

Incidence of Carpal Tunnel Syndrome in the US Military Population

Carpal tunnel syndrome (CTS) is a common disease. Its epidemiology has been evaluated previously, mostly in regional populations or in working groups, with an incidence between 1.5 and 3.5 per 1,000 person-years. We studied this diagnosis in the US military population, with the hypothesis that this young population would have a lower incidence of CTS than previously reported in general populations. The Defense Medical Epidemiology Database notes all medical encounters for all US military personnel and maintains the number of all personnel on active duty each year. We queried the database using the International Classification of Diseases, ninth revision, code 354.0 (CTS) and analyzed the personnel presenting for initial visits for the years 1998–2006. Multivariate Poisson analysis was performed, controlling for rank, gender, age, and race. The raw incidence of CTS in the US military was 3.98 per 1,000 person-years, in a population of 12,298,088 person-years. Females had a significantly higher incidence of CTS than males, with an adjusted incidence rate ratio of 3.29. CTS incidence increased by age, with the age group ≥40 years having a significantly higher incidence. Additionally, military rank was found to be an independent risk factor for CTS, with rates higher in senior officer and enlisted groups. This suggests that occupational requirements have an effect on CTS within the military. We showed a comparable incidence of CTS between the US military and general population, with a significantly higher female cohort with a diagnosis of CTS. Increased age and advanced rank were risk factors for CTS. The opinions or assertions contained herein are the private views of the authors and are not to be construed as official or reflecting the views of the Department of Defense or the US government. Some of the authors are employees of the US government.     

Fracture patterns in Nottingham children

The incidence and pattern of fractures in children less than or equal to 12 years of age living in Nottingham, England, have been reviewed. The annual incidence rate is 16/1,000 children. Fractures are rare in those less than 18 months of age, and incidence increases with age. The most common cause of fracture was a fall in or around the home; the incidence rate of fractures after road traffic accidents was similar in all age groups. Fractures of the distal radius and ulna accounted for 35.8% of all fractures seen, with hand fractures the second largest group (14.7%). The most common fracture type was a green-stick fracture (51.6%), and 18.5% of fractures were epiphyseal injuries. Epiphyseal injuries in children less than 5 years of age, were uncommon whereas spiral/oblique fractures were more common. Rotational trauma is more likely to cause a spiral or oblique shaft fracture in a younger child and an epiphyseal fracture in an older child.     

Ambulatory care for traumatic brain injuries in the US, 1995-1997

The burden of mild traumatic brain injury (TBI) is not well understood at the national level, but hospitalization rates show a decline over time. This paper describes ambulatory care for TBI patients at physician offices, hospital outpatient departments, and emergency departments (EDs) in comparison with non-TBI visits for the US during 1995-1997. An estimated 1.4 million visits for TBI were made each year for an average annual rate of 5.4/1,000 population. A decline in annual visit rate was noted during 1995-1997. Visit rates were higher for those aged 0 -14 and 75 and older. Falls (44%) and motor vehicles (28%) were the primary injury causes. Rural-urban differences were found, also in comparison with non-TBI. In 23% of visits to EDs, a CT scan was ordered or performed and in 33%, a mental status exam was conducted. Further investigations are warranted to describe ambulatory care for TBI in more detail, particularly in light of a decline in hospitalization rates.     

Incidence and demographics of hand fractures in British Columbia, Canada: a population-based study

PURPOSE: To identify population-based hand fracture annual incidence rates, demographics, and seasonal and geographic variations from all patients seeking treatment for a hand fracture in British Columbia, Canada from May 1, 1996 to April 20, 2001. METHODS: All Medical Service Plan and Hospital Separation records that included International Classification of Diseases-9 codes for metacarpal (815), phalangeal (816), and multiple (817) fractures were extracted from the British Columbia Linked Health Dataset, along with the individual registry demographic records linked to each hand fracture. RESULTS: A total of 72,481 hand fractures were identified. Fifty percent were phalangeal fractures, 42% were metacarpal fractures, and 8% were multiple fractures. The total population annual incidence rate for a hand fracture was 36 per 10,000. Age-adjusted annual incidence rates ranged from 29 per 10,000 for people older than 20 years to 61 per 10,000 for people age 20 or younger. The most common age for a hand fracture was 14 years for males and 13 years for females. Males had a 2.08 greater relative risk for hand fracture and they maintained most of this increase in risk between the ages of 15 and 40. For females there was an increased relative risk for a hand fracture after the age of 65. Spring had the highest rates for hand fractures. People in the Northern half of the province had a 1.6 greater relative risk for sustaining a hand fracture, compared with people in the more urbanized, less-industrialized, and more-affluent Southwestern region. CONCLUSIONS: Our study provides a robust projection of annual incidence rates for hand fractures because we were able to review all occurrences of a hand fracture within a population base of approximately 4 million people over a 5-year period. Our study also allowed for the examination of how age, gender, season, and geographic location influenced hand fracture incidence rates within a large, diverse population.     

Diabetes mellitus: incidence, prevalence, survivorship, and causes of death in Rochester, Minnesota, 1945-1970.

The incidence and prevalence of diabetes mellitus in residents of Rochester, Minnesota, for 25 years (1945 to 1970) were determined from available medical records. The over-all incidence rate for diabetes is 133 new cases per 100,000 population per year (age-adjusted to 1970 U.S. white population). The rate increased with age for both men and women and was higher among men over 30 years of age. The average annual incidence rates per five-year period for juvenile-onset diabetes mellitus were low and variable and showed little change. Polyuria, polydipsia, glycosuria, lean habitus, loss of weight, and high levels of fasting hyperglycemia at initial diagnosis occurred more frequently in younger than in older patients. The peak incidence in 1960 through 1964 and the decrease in the following five years may be a reflection of the introduction of the AutoAnalyzer method for blood glucose in 1958. The average annual incidence rates for 1955 through 1959 and 1965 through 1969 were essentially the same. The over-all prevalence for diabetes mellitus is 1.6 per cent, with a higher rate among men than among women over 40 years of age; among school children the rate is 0.1 per cent. Survivorship in the diabetic population is lower than that in the general population. The leading cause of death was coronary heart disease, the death rate from it being higher than for the general population.     

Increasing incidence of pediatric mild traumatic brain injury in Finland – a nationwide register study from 1998 to 2018

AimThe purpose of this study is to document the annual incidence and incidence trends of pediatric traumatic brain injury (pTBI) in Finland over the course of 21 years.MethodsWe conducted a retrospective nationwide register-based cohort study and used the Finnish Care Register and Population information statistics from 1998 to 2018. The patient group includes all patients aged <18 at the time of injury. We included all emergency department (ED) visits and subsequent inpatient admissions (meaning at least one night in the hospital) with International Classification of Diseases diagnostic code S06*. We calculated pTBI incidences per 100,000 person-years with 95% confidence intervals and the incidences were compared by incidence rate ratios (IRR), including age, diagnosis, and gender stratified analyses.ResultsA total of 71,972 patients were included with 76,785 ED visits or hospitalizations for pTBI diagnoses. The annual incidence of diagnosed pTBI was 251 (CI: 241–260) per 100,000 in 1998 and 547 (CI: 533–561) per 100,000 in 2018, indicating a 118% increase in the incidence (IRR 2.18 CI: 2.09–2.28). Boys had 32% higher incidence (IRR 1.32 CI: 1.30–1.34) than girls. The highest cumulative incidence was observed among boys aged <1 years, 525 (CI: 507–543) per 100,000, and boys had higher incidences in all age groups. The most used diagnostic code was concussion, which included 92.1% of the diagnoses followed by diffuse brain injury, which included 2.3% of the diagnoses. The increase in the incidence of diagnosed pTBI was notably high after 2010. Concussion diagnoses and pTBI cases that were discharged directly from the ED had more than a two-fold increase from 2010 to 2018, whereas the incidence of inpatient admissions for pTBI increased by 53%.ConclusionsThe overall incidence of diagnosed pTBI has increased in Finland especially since 2010. Boys have higher incidence of diagnosed pTBI in all age groups. Most of the increase was due to increase in the concussion diagnoses, which may be due to the centralization of EDs into bigger units and increased diagnostic awareness of mild pTBI.     

Epidemiology of work-related burn injuries: experience of a state-managed workers' compensation system

BACKGROUND: Population-based incidence rates of work-related burn injuries and associated risk factors specific to anatomic sites and degree of burn are not known. METHODS: Using a state-managed workers' compensation database, we estimated incidence rates of work-related burn injuries and identified high-risk occupations and associated exposures. RESULTS: The annual incidence rate of occupational burn was 26.4 per 10,000 workers, with the highest rate observed in the manufacturing sector for males and in the service sector for females. Welders, cooks, laborers, food service workers, and mechanics had higher incidence rates of burn injury compared with other occupations. Wrist and hand burns accounted for a majority of burn injuries, with females experiencing greater incidence of these distal upper extremity burns (8.9 in females and 6.7 in males per 10,000 workers, respectively). Third-degree burns (incidence rate, 1.3 per 10,000 workers) were also most frequently observed in the upper extremities compared with other anatomic sites. The majority of wrist and hand burns were caused by hot liquids/ objects, whereas the majority of eye burns were associated with chemical exposures. Younger cooks and food service workers were at greater risk of burn than older coworkers. CONCLUSION: Specific occupations are associated with degree of burn, anatomic site, and exposures. This information will be useful for targeted intervention among high-risk occupations and work groups.     

The survival rate of patients with burns induced by explosions was significantly higher than that of common burn cases: A nationwide observational study using the Japan Trauma Data Bank

BackgroundsBlast injuries have a variety of mechanisms, with some cases resulting in immediate death and others resulting in burns as a fourth type of blast injury when the energy of the explosion is relatively low. We reported in 2020, as an incidental result, that burns caused by explosions had a higher survival rate than usual burns caused by other mechanisms. The present study confirmed whether or not burns caused by explosions had higher survival rates than those caused by other mechanisms using the Japan Trauma Data Bank (JTDB), a leading nationwide trauma registry in Japan.MethodsBurn patients registered to the JTDB database from January 2004 to March 2019 were analyzed retrospectively. The 338,744 patients registered to the JTDB database published in 2021 were identified. After exclusion, 7127 patients met the criteria for inclusion in this study. Logistic regression analyses were conducted for in-hospital survival rates using patients with burns, including cases complicated by usual trauma and burned patients without usual trauma. The survival rates by External burn grade AIS98 were compared between the explosion group and other cause groups using burn cases without usual trauma.ResultsThe cause of the explosion significantly influenced the survival according to logistic regression analyses using burn groups with and without usual trauma. For AIS 4 and 5, we found significant differences between the explosion group and other cause groups in survival rates among burn cases without usual trauma.ConclusionThe survival rate of patients with burns induced by explosions was higher than that of common burn cases according to analyses based on a burn grade of AIS98 among burn cases without common trauma. Multivariate analyses also showed that explosion burns had a significantly better outcome than those induced by other causes.     

Incidence of clinically diagnosed vertebral fractures: a population-based study in Rochester, Minnesota, 1985-1989.

Vertebral fractures are the classic hallmark of osteoporosis, yet little is known of their epidemiology. The incidence of clinically diagnosed vertebral fractures was therefore directly assessed in the predominantly white (European descent) population of Rochester, Minnesota. Altogether, 341 Rochester residents were radiologically diagnosed for the first time with one or more vertebral fractures in the 5 year study period, 1985-1989. The overall age- and sex-adjusted incidence rate was 117 per 100,000 person-years (95% CI, 105 to 130). The age-adjusted rate in women (145 per 100,000 person-years) was almost twice that in men (73 per 100,000 person-years). Of all fractures, 47 (14%) followed severe trauma, 282 (83%) followed moderate or no trauma, and 12 (3%) were pathologic. Incidence rates for fractures following moderate trauma were higher in women than in men and rose steeply with age in both genders. In contrast, fractures following severe trauma were more frequent in men, and their incidence increased less with age. These Rochester rates are greater than those previously reported from studies in Britain and Sweden but lower than the incidence rates extrapolated from a prevalence study in this population.     

Emergency department visits due to vertebral fractures in the Netherlands, 1986-2008: steep increase in the oldest old, strong association with falls

BackgroundVertebral fractures are a common consequence of osteoporosis in older persons. With the ageing of the population, numbers are expected to rise.ObjectiveTo determine trends in health care demand due to vertebral fracture related emergency department (ED) visits and hospitalizations in the older Dutch population.Design and settingSecular trend analysis of vertebral fracture related ED visits between 1986 and 2008, using the Dutch Injury Surveillance System. All ED visits with a primary diagnosis of a vertebral fracture in persons aged ≥65 years were extracted from this database.Main outcome measureNumbers, age-specific and age-adjusted incidence rates (per 100,000 population) of ED visits and hospitalization rates due to vertebral fractures in the older Dutch population were calculated for each year of the study.ResultsThe total number of ED visits due to a vertebral fracture increased from 913 in 1986 to 2502 in 2008 (174% increase). The majority of fractures were caused by a low-energetic fall incident (83%). The overall age-adjusted incidence rate increased from 51.6 per 100,000 population in 1986 to 103.6 in 2008. Incidence rates increased with age and were higher in females than in males. The hospitalization rate remained stable at about 50–55%, in both females and males.ConclusionVertebral fracture related ED visits and hospitalizations are increasing rapidly in the older Dutch population, especially in the oldest-old. Most vertebral fractures were associated with falls. These findings indicate that a pro-active approach in the diagnosis and treatment of osteoporosis and in the prevention of falls in both men and women is warranted.     

Trends in the incidence of subarachnoid hemorrhage in Akita Prefecture, Japan

OBJECT: The incidence of subarachnoid hemorrhage (SAH) in Japan has been reported to be among the highest in the world. The aim of this study was to analyze the incidence of SAH and its trends in Akita Prefecture, Japan. METHODS: The incidence rate of SAH between January 1, 1989, and December 31, 1998, was investigated using the prospective Akita Stroke Register. Computed tomography scans were obtained in all suspected cases of SAH. During the study period, 3257 patients with their first SAH were registered. The crude annual incidence rates of SAH in men, women, and both sexes were 20, 33, and 27 per 100,000 population per year, respectively. Age-standardized incidence rates remained stable. Crude incidence rates in women increased. In men the incidence reached a plateau after 55 years of age; in women it peaked in the eighth decade of life. The 28-day case fatality rate was 26.7%, without significant changes. Two diurnal peaks were observed: one at 7 a.m. and another at 5 p.m. The incidence was lowest in summer and highest in spring, in both sexes. CONCLUSIONS: The incidence of SAH in patients in Akita Prefecture is similar to that reported in other Japanese studies. The age-standardized incidence rates are stable. The increasing crude incidence in women is probably attributable to the aging of the Japanese population.     

Epidemiology of hip fractures in Belgrade,Serbia Montenegro, 1990–2000

Introduction This study retrospectively determined the incidence rates of hip fractures in Belgrade, Serbia and Montenegro, during the period 1990–2000. Materials and methods All patients with hip fractures treated at all Belgrade hospitals were identified from the Republic of Serbia’s Ministry of Health National Health Care database. Patient demographics, type of hip fracture, and details of the mechanism of injury were collected. The annual incidence rates were calculated with interpolation according to the Belgrade population census of 1991 and 2002. Results There were a total of 8,904 hip fractures with a mean annual incidence of 51.7 per 100,000 adults (62.2 females and 35.5 males). Mean age at the time of fracture was 67 years (72.6 for females and 59.3 for males), with 64.7% of all fractures occurring in women. There was a significant increase in hip fracture incidence rates over the observed period in females (P = 0.006), but not in males (P = 0.962). Trochanteric fractures predominated, accounting for 53% compared with cervical fractures. In patients over 50 years of age there was an exponential increase in the incidence of hip fractures in both sexes; though more so in females. 91% of hip fractures occurred in these older patients with incidence rates of 143.6 per 100,000 (185.9 for female and 92.2 for male patients). The most common mechanism of injury in the older group was low-energy trauma (70.3%) resulting from a fall from standing height onto a flat surface (same level). Standardizing incidence rates in the older age group to the US 1985 white population gave values of 228 per 100,000 females and 96 per 100,000 males. These incidence rates are similar to those reported in Italy, France and Great Britain, but lower than those in Scandinavian countries. Conclusion In view of growing population numbers and an increase in the proportion of patients aged over 60 years, we can expect an increase in the prevalence of osteoporosis and an increase in the incidence of fragility hip fractures in the future, with resource implications.     

The epidemiology of burns in a medical center in the Caribbean

A retrospective study on burns patients admitted to the Sint Elisabeth's Hospital on Curacao was conducted during the 11-year period from the years 1992 to 2002. This is the first such study performed in Curacao. Curacao does not have an established burn center, therefore severe burns cases are treated in a general hospital. Only the very severe cases are referred to burn centers abroad.Data were collected on incidence, gender, age, cause, total body surface area (TBSA burned), degree, localization, case fatality, length of hospital stay (LOS), and seasonal variation. A total of 336 burns patients were admitted. This represented an annual admission of 31 patients, and an annual cumulative incidence of 2.3 episodes per thousand persons for burns admissions. The male to female ratio was 1.6:1, and the mean age of admission was 24.3 years. Most burned patients were observed in the age group ranging from 0 to 4 years old (29.2% of all burns cases). The mean TBSA of burn was 13.6%, range 0.5–80%. The most common cause of burn was scald (47.9%) followed by flame (22.3%). The overall mean LOS and case fatality were 15.8 days and 3.3%, respectively. Second and first degree combined, and second-degree only burns were the most frequent. Most frequent localizations burned were the arms, thorax, and legs. Most burns occurred at the end and at the beginning of each year (comparable to winter and spring period in other studies), being the seasons with the most public holidays and other festivities.We conclude that the incidence, age and gender distribution, LOS and TBSA of burns on Curacao were very similar to data from other international studies from the US, Europe and Asia. Scald and fire were the major causes of burns, being preventable injuries. Especially in young children the need for a prevention program is essential. Also, there is a need to inform people from all ages on the danger of fire injuries, especially during public holidays and other festivities when the incidence is the highest.