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PubMed1999

Training for quality management: report on a nationwide distance learning initiative for physicians in Spain.

Under the sponsorship of a pharmaceutical firm, a distance-learning course on Quality Management methods was developed at the University of Murcia (Spain) and offered nationwide to primary health care physicians working in the public system. A total of 7104 physicians (47.7% of the census) signed up (at least one in 92.2% of the health centres). The course content follows the author's model of quality improvement, monitoring and design trilogy, but focuses mainly on methods for a quality improvement cycle using a learning-by-doing and problem-solving approach. The unexpected success of this initiative has led us to reflect on the interest in learning about quality improvement methods shown by physicians, the usefulness of the distance-learning approach, and also to continue the project with new initiatives such as: a summary poster, software containing all the necessary tools and data analysis for quality improvement, and a manual.

Curriculum↗
PubMed1987

Utilization prediction for helicopter emergency medical services.

As the number of helicopter emergency medical services (HEMS) programs continues to expand rapidly, the need for an accurate, readily obtainable, inexpensive method of utilization prediction for these services has become apparent. Accurate volume and case mix prediction for these services are increasingly important as financial constraints become more severe. All previous methods of utilization prediction based on experiences of individual services or accident statistics have been either inaccurate, costly, or difficult to obtain in a relatively short period of time. Prediction of HEMS utilization requires consideration of many significant, simultaneous factors, in addition to patient needs based on population statistics. Through use of a survey of all hospital-based helicopter emergency service programs and published census data, this study analyzed factors relating to helicopter program volume and case mix, providing insight as to why previous methods utilizing total population were inaccurate. A more accurate yet simple and inexpensive method of utilization prediction for HEMS was developed.

Aircraft↗
PubMed2001

A national general practice census: characteristics of rural general practices.

OBJECTIVES: The aim of the present study was to describe, using a national census, the characteristics of rural general practices and compare these with city and town general practices. METHODS: A previously piloted, anonymous but linked, questionnaire was issued to all GPs in Ireland. A liaison network covering the country was developed to increase the response rate. Respondents were asked to designate the location of their main surgery as being city (>20 000 population), town (>5000) or rural (<5000). Each responding practice was asked to nominate one partner to complete a specific section on practice information. RESULTS: Completed individual questionnaires were returned from 2093 GPs (86% response rate). Information on 1429 practice centres was provided; 488 (34%) of these were designated as city, 405 (28%) as town and 536 (38%) as rural. Rural practices reported fewer private patients (P < 0.001) and more socio-economically deprived patients (P < 0.001) than those in towns or cities. The mean number (SD) of total scheduled hours per average week per GP was 77.95 (37.0) for city practices, 80.6 (35.9) for town and 103.6 (39.0) for rural (P < 0.001). Rural practices are more likely, in comparison with those in cities and towns, to have attached staff working from purpose-built premises which are publicly owned. Rural practices also have more contacts with members of the primary care team such as Public Health Nurses, and the quality of these contacts is described more positively. The range of available services is broadly similar, with emergency medical equipment being available more frequently in rural practices. CONCLUSION: This study suggests that rural practitioners and their practices differ from their urban counterparts in many important aspects. Consideration should be given to the development of formal under- and postgraduate rural general practice programmes to prepare new, and continue to enthuse present, rural GPs.

Censuses↗
PubMed1995

The relationship of active and passive smoking to carotid atherosclerosis 12-14 years later.

BACKGROUND: Active and passive smoking have been found to be associated with clinical atherosclerotic disease. To explore the effects of smoking on atherogenesis, we investigated the relationship of past and current active and passive smoking to carotid atherosclerosis in middle-aged adults. METHODS: The study population consisted of 2,073 middle-aged residents of Washington County, Maryland. Information on active smoking and exposure to environmental tobacco smoke (ETS) was obtained from a 1975 census and from the baseline visit of the Atherosclerosis Risk in Communities (ARIC) Study in 1987-1989. Carotid artery intimal-medial wall thickness, measured by B-mode ultrasound methods in 1987-1989, was used as an indicator of carotid atherosclerosis. Mean intimal-medial wall thickness (IMT) was adjusted for age, gender, cardiovascular risk factors, and education using multiple linear regression. RESULTS: The lowest mean IMT was found among never smokers who had never been exposed to ETS (mean +/- standard error: 0.706 +/- 0.013 mm). Exposure to ETS in one or both time periods was associated with increased IMT among never smokers (ETS in 1975 only: 0.731 +/- 0.022; ETS in 1987-1989 only: 0.738 +/- 0.011; ETS in both periods: 0.734 +/- 0.012). Active smoking in 1975 was also associated with increased IMT. The greatest mean intimal-medial wall thickness was found among persons who were current smokers in both time periods (0.807 +/- 0.009). CONCLUSIONS: Both past and current passive and active smoking are associated with increased carotid intimal-medial wall thickness.

Arteriosclerosis↗
PubMed2005

High school census tract information predicts practice in rural and minority communities.

PURPOSE: Identify census-derived characteristics of residency graduates' high school communities that predict practice in rural, medically underserved, and high minority-population settings. METHODS: Cohort study of 214 graduates of the University of California, San Francisco-Fresno Family Practice Residency Program (UCSF-Fresno) from its establishment in 1970 through 2000. Rural-urban commuting area code; education, racial, and ethnic distribution; median income; population; and federal designation as a medically underserved area were collected for census tracts of each graduate's (1) high school address and (2) practice location. FINDINGS: Twenty-one percent of graduates practice in rural areas, 28% practice in areas with high proportions of minority population (high minority areas), and 35% practice in federally designated medically underserved areas. Graduation from high school in a rural census tract was associated with rural practice (P < .01), Of those practicing in a rural site, 32% graduated from a rural high school, as compared with 11% of nonrural practitioners. Graduation from high school in a census tract with a higher proportion of minorities was associated with practice in a proportionally high minority community (P = .01). For those practicing in a high-minority setting, the median minority percentage of the high school census tract was 31%, compared with 16% for people not practicing in a high minority area. No characteristics of the high school census tract were predictive of practice in a medically underserved area. CONCLUSION: Census data from the residency graduate's high school predicted rural practice and practice in a proportionally high minority community, but not in a federally designated medically underserved area.

Adolescent↗
PubMed2002

[Homicide progression per geographical area in the State of Pernambuco, Brazil, 1980-1998].

OBJECTIVE: To analyze the magnitude and growth of homicides among male population according to the geopolitical areas. METHODS: An ecological study including a time series analysis was carried out among 15 to 49 year-old males living in the state of Pernambuco, Brazil. Mortality data was collected from the Ministry of Health's Mortality Information System. Data on population was from the 1980 and 1991 censuses and the 1996 Brazilian Institute of Geography and Statistics' census. For inter-census years, the population size was estimated by interpolation, and for the period 1997-1998 it was estimated by projection, using the geometric method. Statistical analysis was performed using mobile mean and regression analysis techniques. RESULTS: In the 1980s, the greatest increase in homicide rates was in the state capital (390%). In the 1990s, the greatest increase occurred in the metropolitan region (68.5%) suggesting violence spread from the capital to other municipalities of greater Recife. Homicide rates tended to grow linearly in the interior, whilst there was an exponential growth in the capital and metropolitan region. A striking feature is the high rates of homicides with firearms in the three areas. CONCLUSIONS: The progression of homicides in the three areas of study shows a characteristic increase. It should be stressed that even though it is the same phenomenon - male homicides -, the generating dynamic of this process has geographical particularities between more urban and interior areas and they should be taken into account while developing local policies for supporting victims and preventing these events.

Adolescent↗
PubMed2004

Effective size of two feral domestic cat populations (Felis catus L): effect of the mating system.

A variety of behavioural traits have substantial effects on the gene dynamics and genetic structure of local populations. The mating system is a plastic trait that varies with environmental conditions in the domestic cat (Felis catus) allowing an intraspecific comparison of the impact of this feature on genetic characteristics of the population. To assess the potential effect of the heterogenity of males' contribution to the next generation on variance effective size, we applied the ecological approach of Nunney & Elam (1994) based upon a demographic and behavioural study, and the genetic 'temporal methods' of Waples (1989) and Berthier et al. (2002) using microsatellite markers. The two cat populations studied were nearly closed, similar in size and survival parameters, but differed in their mating system. Immigration appeared extremely restricted in both cases due to environmental and social constraints. As expected, the ratio of effective size to census number (Ne/N) was higher in the promiscuous cat population (harmonic mean = 42%) than in the polygynous one (33%), when Ne was calculated from the ecological method. Only the genetic results based on Waples' estimator were consistent with the ecological results, but failed to evidence an effect of the mating system. Results based on the estimation of Berthier et al. (2002) were extremely variable, with Ne sometimes exceeding census size. Such low reliability in the genetic results should retain attention for conservation purposes.

Analysis of Variance↗
PubMed1979

Comparison of methods for estimating the frequency of paralytic poliomyelitis in developing countries.

Standard reporting systems have proved to be unreliable in estimating the frequency of paralytic poliomyelitis in many developing countries. The effectiveness of three survey methods for estimating the prevalence of lameness attributable to poliomyelitis were compared in the Danfa Health Project district of rural Ghana. Lameness was studied because it is easily identified by inexpensive survey techniques. A postal survey of school headteachers was the least costly and most accurate method, giving a prevalence of lameness attributable to poliomyelitis of 7.2 per 1000 schoolchildren. This method is recommended for countries with an extensive network of primary schools. Medical examinations in a village health survey yielded a prevalence of 4.6 per 1000 children aged 6-15 years. This method was relatively expensive but could be justified if the survey was multipurpose. A question added to the annual district census showed a prevalence of 2.2 per 1000 children, a rate still many times higher than estimates from national statistics. The inclusion of such a question in a census or other national survey entails little additional cost and with more careful questioning results should improve. Repeated surveys can be used to assess the success of poliomyelitis vaccination programmes.

Adolescent↗
PubMed2006

A patient's race/ethnicity does not explain the underuse of appropriate adjuvant therapy in colorectal cancer.

INTRODUCTION: To improve colorectal cancer outcomes, appropriate adjuvant therapy (chemotherapy, radiation therapy) should be given. Numerous studies have demonstrated underuse of adjuvant therapy in colorectal cancer. The current study examines variables associated with underuse of adjuvant therapy. METHODS: Three population-based databases were linked: California Cancer Registry, California Patient Discharge Database, 2000 Census. All colorectal cancer patients diagnosed from 1994 to 2001 were studied. Patient characteristics (age, gender, race/ethnicity, comorbidities, payer, diagnosis year, socioeconomic status) were used in five multivariate regression analyses to predict receipt of chemotherapy for Stage III colon cancer, and receipt of chemotherapy and radiation therapy for Stages II, III rectal cancer. RESULTS: The overall cohort was 18,649 Stage III colon cancer and Stages II, III rectal cancer patients. Mean age was 68.9 years, 50 percent male, 74 percent non-Hispanic white, 6 percent black, 11 percent Hispanic, 9 percent Asian, and 65 percent had no significant comorbid disease. Receipt of chemotherapy was 48 percent for Stage III colon cancer, 48 percent for Stage II rectal cancer, and 66 percent for Stage III rectal cancer. Receipt of radiation therapy was 52 percent for Stage II rectal cancer and 66 percent for Stage III rectal cancer. In all five models, low socioeconomic status predicted underuse of chemotherapy or radiation therapy (P < 0.016). Race/ethnicity was not statistically associated with underuse in any of the models. CONCLUSIONS: Most literature identifies race/ethnicity as the reason for disparate receipt of adjuvant therapy in colorectal cancer. Using a more robust database of three population-based sources, our analysis demonstrates that socioeconomic status is a more important predictor of (in)appropriate care than race/ethnicity. Explicit measures to improve care to the poor with colorectal cancer are needed.

Age Factors↗
PubMed2005

The effect of in-room registration on emergency department length of stay.

STUDY OBJECTIVE: Length of stay is a measure of efficiency of delivery of care and is an important determinant of patient satisfaction in a pediatric emergency department (ED). Although length of stay is affected by many unmodifiable factors, changes in care processes may lead to improvements in throughput. Evaluating the success of such changes, however, requires an understanding of the effect of other determinants. We determine the factors associated with ED length of stay and estimate the effect of an in-room registration process on throughput time. METHODS: This was a before-and-after study at an academic pediatric ED with annual census of 45,000 visits. The study period was January 2, 2000, through December 31, 2003. In June 2003, an in-room registration process was initiated so that patients were placed directly into a room after triage, and the registration process was completed after physician evaluation. Weekly data were obtained on average length of stay and the following possible confounders: average daily ED census, hospital admissions from the ED, hospital occupancy rate, hours of physician staffing, and month of the year. An autoregressive integrated moving-average time series model was used to determine the effect of each variable on length of stay. RESULTS: Data were obtained for 209 weekly intervals during the study period; average length of stay ranged from 2.2 to 3.8 hours. All factors were highly associated with length of stay except for the number of hours of physician staffing (P =.71). The presence of in-room registration led to an estimated average decrease in length of stay of 15.0 minutes (95% confidence interval 6.3 to 33.4 minutes), or 9.3%. CONCLUSION: In-room registration leads to a statistically significant and practically meaningful improvement in total length of stay in the pediatric ED. Throughput time can be largely explained by a limited number of factors; our predictive model may facilitate the evaluation of other interventions.

Emergency Service, Hospital↗
PubMed2004

Educational differentials in mortality from cardiovascular disease among men and women: the Israel Longitudinal Mortality Study.

PURPOSE: While socioeconomic inequalities in cardiovascular disease have been observed in most industrialized countries, available information in Israel centers on ethnic variations and the role of education has yet to be investigated. This study examines educational differentials in cardiovascular mortality in Israel for both men and women aged 45 to 69 and 70 to 89 years. METHODS: Data are based on a linkage of records from a 20% sample of the 1983 census with the records of deaths occurring until the end of 1992. The study population includes 152,150 individuals and the number of cardiovascular deaths was 14,651. Educational differentials were assessed for mortality of diseases of the circulatory system, ischemic heart diseases, cerebrovascular diseases, hypertensive diseases, and sudden death. RESULTS: Substantial mortality differentials were found among individuals aged 45 to 69 years, with larger inequalities among women. The age-adjusted relative risk for mortality of cardiovascular diseases among those with elementary education (< or =8 years) compared with those with high education (> or=13 years) was 1.46 (95% CI: 1.32-1.61) for men and 2.06 (95% CI: 1.76-2.41) for women. Differentials among the elderly were markedly narrower than those for younger adults. Similar trends were observed for mortality of subgroups of causes including cerebrovascular diseases and ischemic heart diseases. Educational differentials were not affected by adjustment for ethnic origin and car ownership. CONCLUSIONS: Those with 8 years of education or less suffer higher risk of cardiovascular mortality compared with adults with 13 or more years of education. Young, less educated women are more vulnerable, and health and social policies oriented towards this group are needed.

Aged↗
PubMed2002

Lay beliefs about high blood pressure in a low- to middle-income urban African-American community: an opportunity for improving hypertension control.

PURPOSE: Lay beliefs about illness are a potential barrier to improving the control of hypertension. We investigated the extent to which lay beliefs about hypertension diverge from current medical understanding. METHODS: We conducted street intercept interviews and focus group discussions in six predominantly African-American census tracts in the southern sector of Dallas County, Texas. Sixty subjects, aged 18 to 67 years, were stopped along popular thoroughfares and administered a brief survey. Additionally, 107 participants were interviewed in 12 homogeneous focus groups, balanced by sex and age (18 to 74 years). Participants were asked about the meaning, causes, consequences, and treatment of high blood pressure. RESULTS: The street intercept data indicated that 35% (n = 21) of respondents related high blood pressure to eating pork or other foods that makes the blood travel too fast to the head, and only 15% (n = 9) related hypertension to an elevated pressure in blood vessels. The focus group data indicated that hypertension was causally linked to eating pork in 8 of the 12 groups; was perceived as a symptomatic illness in all 12 groups; and was considered treatable with vitamins, garlic, and other herbs in 11 groups, with prescription medications in 10 groups and with lifestyle modifications such as weight loss in 8 groups. Hypertension was mentioned as a leading cause of death among African Americans in none of the 4 focus groups of 18-year-old to 29-year-old participants, in 2 of the 4 focus groups of 30-year-old to 49-year-old participants, and in 3 of the 4 focus groups of 50-year-old to 74-year-old participants. CONCLUSIONS: In a low- to middle-income urban African-American community, the predominant beliefs about hypertension diverged sharply from current medical understanding. Lack of appreciation of these lay beliefs by providers may contribute to noncompliance and poor rates of hypertension control.

Adult↗
PubMed2002

Declining HIV-1 incidence and associated prevalence over 10 years in a rural population in south-west Uganda: a cohort study.

BACKGROUND: In Uganda, there have been encouraging reports of reductions in HIV-1 prevalence but not in incidence, which is the most reliable measure of epidemic trends. We describe HIV-1 incidence and prevalence trends in a rural population-based cohort between 1989 and 1999. METHODS: We surveyed the adult population of 15 neighbouring villages for HIV-1 infection using annual censuses, questionnaires, and serological surveys. We report crude annual incidence rates by calendar year and prevalence by survey round. FINDINGS: 6566 HIV-1 seronegative adults were bled two or more times between January, 1990, and December, 1999, contributing 31984 person years at risk (PYAR) and 190 seroconversions. HIV-1 incidence fell from 8.0 to 5.2 per 1000 PYAR between 1990 and 1999 (p=0.002, chi(2) for trend). Significant sex-specific and age-group-specific reductions in incidence were evident. Incidence was 37% lower for 1995-99 than for 1990-94 (p=0.002, t-test). On average, 4642 adult residents had a definite HIV-1 serostatus at each yearly survey round. HIV-1 prevalence fell significantly between the first and tenth annual survey rounds (p=0.03, chi(2) for trend), especially among men aged 20-24 years (6.5% to 2.2%) and 25-29 years (15.2% to 10.9%) and women aged 13-19 years (2.8% to 0.9%) and 20-24 years (19.3% to 10.1%) (all p<0.001, chi(2) for trend). INTERPRETATION: Our findings of a significant drop in adult HIV-1 incidence in rural Ugandans give hope to AIDS control programmes elsewhere in sub-Saharan Africa where rates of HIV-1 infection remain high.

Adolescent↗
PubMed1997

Clonidine poisoning in Jefferson County, Alabama.

STUDY OBJECTIVE: To describe the epidemiology of clonidine-related hospitalization in children, to evaluate the efficacy of naloxone, and to review the clinical effects of clonidine toxicity. METHODS: This was a retrospective analysis in an urban teaching pediatric emergency department with an annual census of 55,000 involving 80 children younger than 6 years who were admitted for clonidine ingestion during a 6-year period. RESULTS: Clonidine commonly belonged to the patient's grand-mother (54%). Black children were twice as likely to be hospitalized for clonidine ingestion than white children compared with children hospitalized for any injury. Average time to onset of symptoms was 35 minutes. Decreased level of consciousness was the most common presenting symptom (96%). Mean ED vital signs were systolic blood pressure, 102 mm Hg; pulse, 98; respirations, 25 (six patients intubated); and temperature, 36.6 degrees C, Naloxone was administered to 49% of patients, 84% of whom demonstrated no response. CONCLUSION: Clonidine ingestion is endemic in our area. Serious clinical effects mandate that all children with clonidine ingestion be triaged to a health care facility. Naloxone as an antidote for clonidine remains controversial.

Black or African American↗
PubMed2004

Using a GIS-based floating catchment method to assess areas with shortage of physicians.

This paper presents a geographic information system (GIS) based floating catchment method for identifying physician shortage areas. The traditional designation methods are primarily regional availability measures, which use administrative boundaries such as counties as the basic spatial units for calculating physician to population ratios and designate shortage based on those ratios. Such approaches have been criticized for their inability to account for either the spatial variations of population demand and physician supply within those boundaries or for population-physician interactions across them. The floating catchment method addresses the internal spatial distribution problem by deriving population data from a smaller unit, the census tract. The potential cross border patient-physician interaction is taken into consideration by using circles of reasonable radius around each census tract centroid as the basic spatial units, which can encompass areas on either side of an administrative border. By varying the radius of the catchment circle, this paper demonstrates that the physician to population ratio is scale dependent and that the greatest variability of the ratios and shortages occur at the most local scales (< 20 miles), which argues for using finer spatial resolution data in shortage designation practice.

Catchment Area, Health↗
PubMed2002

Age-specific differences in the use of thrombolytic therapy and hospital outcomes in patients with acute myocardial infarction: a community-wide perspective.

BACKGROUND: Relatively limited information is available about recent, and trends over time, use of thrombolytic therapy in patients of different ages hospitalized with acute myocardial infarction and the association between use of thrombolytic therapy and hospital outcomes. METHODS: We conducted an observational study of 5601 residents of the Worcester, Massachusetts, metropolitan area (1990 census = 437,000) with confirmed acute myocardial infarction in all local hospitals during 6 one-year periods between 1990 and 1999. RESULTS: Despite relatively stable use of thrombolytic therapy between 1990 and 1995, decreases in the use of thrombolytic therapy in all patients with acute myocardial infarction were observed in 1997 and 1999. There was a 1.6 fold decrease in the use of thrombolytic therapy between 1990 and 1999 in patients <65 years. Patients 65-74 years (33.7% 1990; 11.7% 1999) and those 75 years and older (10.8% 1990; 6.7% 1999) experienced marked decreases in the receipt of thrombolytic therapy over time. Use of thrombolytic therapy was associated with reduced hospital mortality in each of the four age-specific groups under study (<55, 55-64, 65-74, > or =75) through the degree of benefit on hospital death rates associated with the use of thrombolytic therapy was attenuated after adjustment for additional confounders. CONCLUSIONS: Our findings indicate recent declines in the use of thrombolytic therapy in middle-aged and elderly patients with acute myocardial infarction. The impact of thrombolytic therapy on hospital outcomes was observed in each of our age strata under study though the magnitude of absolute and relative benefit varied according to age.

Age Distribution↗
PubMed2000

Self-assessed oral health status of ethnic minority residents of South London.

OBJECTIVE: To determine the self-assessed oral health status of individuals from minority ethnic communities living in South London. METHOD: A sample of 1,057 individuals from minority ethnic communities (as defined by Office of Censuses and Surveys categories) resident in South London were asked to complete measures of their oral and facial symptoms, the impact of their oral health on their daily functioning and of their satisfaction with the appearance of their teeth and gums. MEASURES: Self-assessed oral health status was determined by means of two short scales addressing oral symptoms and the impact of oral health on activities of daily living. Satisfaction with the appearance of the teeth and gums was also assessed. FINDINGS: No significant differences were found between minority ethnic communities in the number of symptoms reported, in the level of impact which such symptoms cause, or in their dissatisfaction with the appearance of their teeth and gums. Reporting of symptoms and impact were mildly though significantly correlated with dissatisfaction. CONCLUSIONS: There appears to be little difference between ethnic communities in their reporting of oral and facial symptoms, though these groups report higher levels of dissatisfaction with the appearance of their teeth and gums. Social and demographic factors play an important role in determining perceptions of oral health. The findings should be interpreted with caution given the difficulty of sampling minority ethnic communities and the subsequent limited representativeness of the sample.

Activities of Daily Living↗
PubMed2006

The impact on students of adverse experiences during medical school.

This study aimed to determine the consequences for, and coping method used by, medical students who experienced adverse experiences during their training. A nationwide questionnaire based census of all current medical students in New Zealand. The response rate was 83% (1384/1660). Two-thirds of students had at least one adverse experience, with humiliation being the most common and having the greatest adverse impact. Unwanted sexual advances, unfair treatment on the basis of gender or race had a lesser impact for most students. Most students took several hours or several days to get over an adverse episode and most commonly they then avoided that person or department. Around one half sought help. Only one-quarter felt it motivated their learning while one-sixth felt it made them consider leaving medical school. The most common perpetrators were senior doctors or nurses. Unwanted sexual advances were most common from other students or from patients. Humiliation is the experience that affected students the most and had a significant adverse effect on learning. There is a disturbing rate of unacceptable practice within medical schools, not all of which is from doctors.

Education, Medical, Undergraduate↗