Frequent use of the hospital emergency department is indicative of high use of other health care services.

STUDY OBJECTIVE: We sought to determine the proportion of emergency department patients who frequently use the ED and to compare their frequency of use of other health care services at non-ED sites. METHODS: A computerized patient database covering all ambulatory visits and hospital admissions at all care facilities in the county of Stockholm, Sweden, was used. Frequent ED patients were defined as those making 4 or more visits in a 12-month period. RESULTS: Frequent users comprised 4% of total ED patients, accounting for 18% of the ED visits. The ED was the only source of ambulatory care for 13% of frequent versus 27% of rare ED users (1 ED visit). Primary care visits were made by 72% of frequent ED users versus 57% by rare ED visitors. The corresponding figures for hospital admission were 80% and 36%, respectively. Frequent ED visitors were also more likely to use other care facilities repeatedly: their odds ratio (adjusted for age and sex) was 3.43 (95% confidence interval [CI] 3.10 to 3.78) for 5 or more primary care visits and 29.98 (95% CI 26.33 to 34.15) for 5 or more hospital admissions. In addition, heavy users had an elevated mortality (standardized mortality ratio 1.55; 95% CI 1.26 to 1.90). CONCLUSION: High ED use patients are also high users of other health care services, presumably because they are sicker than average. A further indication of serious ill health is their higher than expected mortality. This knowledge might be helpful for care providers in their endeavors to find appropriate ways of meeting the needs of this vulnerable patient category.

[Quality assurance of drug prescription in primary health care. A new database software makes the drug therapy surveillance easier]. / Kvalitetsarbete kring läkemedelsförskrivning i primärvården. Nytt databasprogram underlättar uppföljning av läkemedelsbehandling.

Quality assurance of drug prescription is a pre-requisite for rational drug use. From 22 health-care centres in the south-western area of the Stockholm County Council region, drug-prescription data were obtained from the patients' computerised medical recordings. This could be done with the aid of a specially designed database program. The drug-prescription data from the 22 health-care centres were collected and compiled in a central unit. Thereafter the results were brought back to the health-care centres, in which the quality assurance of drug prescription could be started.

Excessive drinking--brief intervention by a primary health care nurse. A randomized controlled trial.

OBJECTIVE: To evaluate the effect of a nurse-conducted intervention on excessive drinkers. DESIGN: Randomized, controlled trial. SETTING: Vårby Health Centre, Stockholm. INTERVENTION: The intervention group visited a nurse three times during a 12-month period. The controls met once with a general practitioner (GP). PATIENTS: Patients were recruited at a health screening on the basis of a raised gamma-glutamyl transferase (GGT). Of 2338 subjects, aged 25-54 years, 222 had a screening GGT of > or = 0.9 mukat/l. 100 were randomized to the treatment and 122 to the control group. MAIN OUTCOME MEASURES: GGT, self-reported alcohol consumption (g/week), sickness allowance and use of health care. RESULTS: After 2 years a reduction of GGT from 1.52 to 1.21 mukat/l (p = 0.02) had occurred in the treatment group. The controls increased their mean level of GGT from 1.75 to 2.16 mukat/l. Mean weekly alcohol consumption in the intervention group was reduced from 337 to 228 g/week (p = 0.02). The controls did not quantify their alcohol consumption initially, but reported a reduced weekly consumption at follow-up. CONCLUSION: The intervention had an impact on GGT and self-reported consumption. The controls also reported decreased consumption possibly because their appointment with the GP functioned as a very brief intervention.

Drug utilization 90%--a simple method for assessing the quality of drug prescribing.

OBJECTIVES: To describe a simple method for assessing the quality of drug prescribing. METHODS: We tested the idea that the number of drugs accounting for 90% of drug use--drug utilization 90% (DU90%)--may serve as an indicator of the quality of drug prescribing. We ranked the drugs by volume of defined daily doses (DDD) and determined how many drugs accounted for the DU90% segment. We also compared this segment with the pharmacotherapeutic guidelines issued by the Regional (local) Drug Committee to determine the adherence to its recommendations (index of adherence). The cost per DDD within the DU90% segment and for the remaining 10% was also calculated. The utilization of drugs based on prescriptions purchased during April 1995 was determined for 24 primary health care (PHC) centres in southwestern Stockholm. RESULTS: The number of different products, defined as all products marketed under a single brand name within an ATC (anatomic therapeutic chemical) category, in the DU90% segment varied twofold (81-164) between the 24 PHC centres. Differences in the number of GPs per PHC centre accounted for a third of this variation. The compliance with the Drug Committee recommendations varied between 54% and 78%. There was no relationship between the number of products accounting for the DU90% segment and the adherence to local prescription guidelines, i.e. prescribing more products did not increase the adherence. The costs for the DU90% drugs varied from 2.26 SEK/DDD in one PHC centre to 3.75 in another one, with an average cost of 2.87 SEK/DDD, while for the remaining 10% it was the double (6:54 SEK/DDD). In all, the DU90% drugs made up 80.8% of the total cost as compared with 19.2% for the remaining 10%. In the DU90% segment, there was no clear relationship between adherence to the guidelines and the cost/DDD, i.e. following the evidence-based guidelines appeared to provide a higher quality of prescribing rather than cheaper prescribing. CONCLUSIONS: The DU90% is an inexpensive, flexible, and simple method for assessing the quality of drug prescribing in routine health care. The number of products in the DU90% segment and adherence to prescription guidelines may serve as general quality indicators. The method may be adapted to provide comparative data between PHC centres, hospitals, regions etc. that may be cross-sectional and longitudinal. Other quality criteria, specific for each class of drugs, should complement these general indicators.

A multidisciplinary clinical study of patients suffering from illness associated with release of mercury from dental restorations. Medical and odontological aspects.

OBJECTIVE: To describe medical and odontological aspects of patients who believed their illness was caused by mercury in dental fillings. DESIGN: Comparison of self-reported and assessed medical and odontological variables. SETTING: The School of Dentistry, Karolinska Institute. SUBJECTS: Sixty-seven patients, referred for suspected side-effects of mercury in dental fillings, and 64 matched controls. MAIN OUTCOME MEASURES: Incidence of medical and odontological diagnoses, own perception of health, and incidence of self-reported symptoms. RESULTS: Three quarters of the patients were women. The mean age was 49 years. Thirty-seven patients (55%) and 47 controls (73%) (NS) showed no sign of somatic disease. Half of the patients felt ill or very ill at the time of the examination. Patients reported twice as many symptoms as the controls during a 3-month period. Patients reported a higher prevalence of very low resting saliva secretion rate, and a higher number of decayed tooth surfaces and of instances of temporomandibular joint dysfunction. CONCLUSION: Patients' feelings of ill-health were more likely related to psychiatric than somatic diagnoses. This study underlines the importance of making an overall diagnosis, including both mental and somatic disorders, especially in unclear cases and in self-diagnosed illnesses.

Asthma education for Swedish primary care physicians--a study on the effects of "academic detailing" on practice and patient knowledge.

OBJECTIVE: To assess the effect of an intervention on general practitioners' (GPs) knowledge about the diagnosis and treatment of asthma, including the prescribing of anti-asthmatic drugs, and asthmatic patients' knowledge about their disease. METHODS: The study took place in the south-west region of Stockholm County. In the area where the intervention took place (area 1), 44 GPs at 21 health centres were visited by a clinical pharmacologist and a pharmacist presenting oral and written information. The basic messages were: (1) the central role of inhaled glucocorticoids; (2) the use of peak expiratory flow (PEF) meters; and (3) the use of reversibility tests. In the control area (area 2), there were 19 GPs at nine health centres. The GPs knowledge about the intervention message was evaluated by a questionnaire pre- and post-intervention. The ratios of prescribed inhaled be beta-adrenoceptor agonists to inhaled glucocorticoids were determined. At the 26 local pharmacies, all asthmatic patients who presented a prescription for anti-asthmatic drugs, issued at the 30 health centres, were given a questionnaire before and after the intervention regarding their knowledge of asthma and its treatment. RESULTS: GPs in area 1 showed significantly more knowledge about item numbers 2 and 3 in the above-described intervention message than did the GPs in the control area 2. The data on prescriptions showed lower ratios of beta-adrenoceptor agonists to glucocorticoids in area 1 than in area 2. The difference, however, between area 1 and area 2 was not significant. After the GP intervention, the patients' knowledge about asthma had increased in area 1, as assessed by the questionnaire filled in by the patients. However, there was no significant difference from that in area 2. CONCLUSIONS: The study shows differences between the intervention and control areas regarding the knowledge and practice of GPs after the intervention. We found changes in knowledge, attitudes and actual practice, the latter being measured by the prescriptions.

A multidisciplinary clinical study of patients suffering from illness associated with mercury release from dental restorations: psychiatric aspects.

The aim of this study was to map the psychological/psychiatric, odontological and medical aspects of patients with symptoms allegedly related to the side-effects of mercury in dental fillings. A total of 67 consecutive patients and 64 controls matched for age, sex and residential area were included in the study. The most striking result was the high prevalence of psychiatric disorders in the patients (89%) compared to the controls (6%), predominantly somatoform disorders. The personality traits differentiating the patients according to the Karolinska Scales of Personality (KSP) were somatic anxiety, muscular tension, psychasthenia and low socialization. More patients than controls showed alexithymic traits. The prevalence of diagnosed somatic diseases was higher, but not sufficiently so to explain the large difference in perceived health. The multiple symptoms and signs of distress displayed by the patients could not be explained either by the odontological data or by the medical examination. Our data indicate that the patients show sociodemographic and clinical patterns similar to those of somatizing patients. The medicalization of the suffering of these patients and the neglect of psychiatric problems prevent the use of appropriate psychotherapeutic approaches.

The costs and effects of two different lipid intervention programmes in primary health care.

OBJECTIVE: To compare the costs and effects of two different intervention strategies for the nonpharmacological treatment of hypercholesterolaemia. DESIGN: Randomized, controlled trial. Subjects were randomly allocated to one of two intervention models and followed up for 1 year. SETTING: Vårby Health Centre, a primary care practice located in a suburb of Stockholm. SUBJECTS: Subjects with a total serum cholesterol in the range 7.0-7.8 mmol L-1 and no signs of ischaemic heart disease or diabetes mellitus, randomized to a low-intensity (n = 35) or medium-intensity (n = 41) intervention. INTERVENTION: Two strategies were used, one labelled medium-intensity strategy which followed national current guidelines for nonpharmacological treatment of hypercholesterolaemia, the other was a low-intensity strategy. MAIN OUTCOME MEASURES: Total serum cholesterol and intervention costs. RESULTS: Both intervention strategies resulted in small (mean 3.5%) decreases in total cholesterol with no significant difference between the groups. The cost per subject in the low-intensity group was SEK 753 and in the medium-intensity group SEK 3614. CONCLUSIONS: Because the effect of the two intervention programmes did not differ, the low-intensity programme is to be preferred from a cost-effectiveness point of view. If only one-third of the population in Stockholm county with cholesterol levels > or = 6.5 mmol L-1 are discovered by the primary health care system, and follow the treatment advice, the net savings in the low-intensity model compared to the current guidelines here presented as the moderate-intensity model, would be SEK 93 million.

Risk factors for cardiovascular disease--a comparison between Swedes and immigrants.

OBJECTIVE: To explore and compare risk factors for cardiovascular disease in Swedes and immigrants. DESIGN: Descriptive analysis of data obtained by personal interview, laboratory investigations, and clinical examination by a trained nurse. SETTING: Vårby Health Centre, located in a suburb of Stockholm. The health centre has 32 percent immigrants in its catchment area. SUBJECTS: 2238 participants aged 25-54 years who attended for a health check in 1989-90. MAIN OUTCOME MEASURES: Ethnicity, age, sex, smoking habits, body mass index(BMI), serum-cholesterol, blood glucose, and blood pressure. RESULTS: 30 different nationalities participated and were classified as Swedish, Finnish, Mediterranean and "Other". Mediterraneans had a higher BMI in spite of the fact that their blood pressures were significantly lower. The Finns had the highest mean cholesterol values. Smoking rates among Mediterranean men were high (58%). 40% of the Swedish men smoked. Only 14% of the Mediterranean women aged 45-54 years smoked. The smoking rates increased in age groups 35-44 years (29%) and 25-34 years (46%). CONCLUSIONS: We found important ethnic differences in risk factor patterns. On the basis of our findings, Finnish immigrants should fare the worst. Special efforts should be directed at Finns, focusing on diagnosis and treatment of hypertension and hypercholesterolemia, and at Mediterraneans on overweight and smoking.

General practitioners for rational use of drugs. Examples from Sweden.

In the south west region of Stockholm a group of 125 general practitioners (GPs) at 27 health centres asked about the extent to which the drug formulary of the University Hospital was useful in their practices. To answer this question, the GPs asked their local pharmacies for prescribing data. When presented this started a process towards rational prescribing from within the group of GPs, including repeated prescribing surveys, starting with health centres as the unit of analysis and proceeding to individual prescribing analyses on request by the GPs. As the prescribing data revealed major differences between health centres, the GPs arranged two workshops on drug use in primary health care. They developed a list of 167 recommended drugs based on drug statistics and morbidity in general practice. Signs of increased cost cautiousness could be shown. There was a clear trend towards both smaller volumes and cost per prescription item for the health centres in the study area. Compared to the national prescribing pattern, prescribing practice in the study area represented a 20 per cent lower drug cost. Although the GPs decided on a drug list separate from that of the hospital, collaboration between the Drug and Therapeutic Committee at the hospital and the GPs increased as a result of their increased engagement in drug management, thereby also bridging the gap between primary health care and clinical pharmacology.