Biomedical subjects
Publications and source records attributed to F Paccaud.
The draft of the new law on the confidentiality of personal data severely curtails medical and epidemiological research. This might be detrimental and dangerous to public health. The project therefore has to be amended.
This paper comments on the drop in coronary heart disease mortality observed in Switzerland among middle-aged men since the mid-seventies. Several methodological points are made regarding the consistency of this decline (relationships with mortality from other causes), and the reasons for this drop (possible change in population mix). It is suggested that a more complete use of vital statistics is still possible and that this can provide useful clues for the assessment and the interpretation of mortality trends in the field of cardiovascular epidemiology.
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Explore the source record for details and available documents.
A survey of medical ambulatory practice was carried out in February-March 1981 in the two Swiss cantons of Vaud and Fribourg (total population: 700,000), in which 205 physicians participated. The methodology used was inspired from the U.S. National Ambulatory Medical Care Survey, the data collection instrument of which was adapted to our conditions; in addition, data were gathered on all referrals prescribed by 154 physicians during two weeks. (The instruments used are presented.) The potential and limits of this type of survey are discussed, as well as the representativity of the participating physicians and of the recorded visits, which are a systematic sample of over 43,000 visits.
This article examines, in two Swiss cantons, the interdependence from a medical care point of view of various regions (health planning zones in one canton, political districts in the other). The volume and the destination of patient referrals prescribed by physicians in ambulatory practice are analyzed. The available data (on 1609 referrals) were gathered by the practitioners themselves, during a National Ambulatory Medical Care Survey type study in February-March 1981, in which 203 physicians participated. Several indicators are proposed (including an integration coefficient and an attraction coefficient for each zone); they show marked differences among the regions. This dynamic approach, based on the effective behavior of physicians, appears to be of major interest for health planning purposes (as compared with the frequent practice to use mainly parameters in relation with the availability of care services--the "supply"--numbers of professionals and/or health facilities).
In the framework of health services research sponsored by the Swiss National Science Foundation, a research was undertaken of the activity of the large majority of the public health nurses working in the Swiss cantons of Vaud and Fribourg (total population 700,000). During one week, 130 nurses gathered, with a specially devised instrument, data on 4165 patient visits. Studying the duration of the contacts, one has distinguished contact duration per se (DC), duration of the travel time preceding the contact (DD), and total duration in relation with the contact (DTC-addition of the first two). It was noted that the three durations increased significantly with patient age (as regard travel time, this is explained by the higher proportion of home visits in higher age groups, as compared with visits at a health center). Examined according to location of the visit, contact duration per se (without travel) is higher for visits at home and in nursing homes than for those taking place at a health center. Looked at in respect to the care given (technical care, or basic nursing care, or both simultaneously), our data show that the provision of basic nursing care (alone or with technical care) doubles contact duration (from 20 to 42-45'). The analyses according to patient age shows that, at an advanced age (beyond 80 years particularly), there is an important increase of the visits where both types of care are given. However, contact duration per se shows a significant raise with age only for the group "technical care only"; it can be demonstrated that this is due to the fact that older patients require more complex technical acts (e.g., bladder care, as compared with simpler acts such as injection). A model of the relationships between patient age and contact duration is proposed: it is because of the increase in the proportions of home visits, of visits including basic nursing care, and of more complex technical acts that older persons require more of the working time of public health nurses.
Statistics of causes of death remain an important source of epidemiological data for the evaluation of various medical and health problems. The improvement of analytical techniques and, above all, the transformation of demographic and morbid structures of populations have prompted researchers in the field to give more importance to the quality of death certificates. After describing the data collection system presently used in Switzerland, the paper discusses various indirect estimations of the quality of Swiss data and reviews the corresponding international literature.
The project "Quantification and qualification of ambulatory health care", financed by the Swiss National Science Foundation and covering the Cantons of Vaud and Fribourg, has two main goals: --a structural study of the elements of the ambulatory care sector. This is done through inventories of the professions concerned (physicians, public health nurses, physiotherapists, pharmacists, medical laboratories), allowing to better characterize the "offer". This inventory work includes the collect and analysis of existing statistical data as well as surveys, by questionnaires sent (from September 1980) to the different professions and by interviews. --a functional study, inspired from the US National Ambulatory Medical Care Survey and from similar studies elsewhere, in order to investigate the modes of practice of various providers, with particular regard to interprofessional collaboration (through studying referrals from the ones to the others). The first months of the project have been used for a methodological research in this regard, centered on the use of systems analysis, and for the elaboration of adequate instruments.
There are still few studies about the collaboration between ambulatory practitioners (physicians and paramedical services). Nevertheless, the interest seems to be growing for this aspect of health care; it involves indeed basic organisational problems as well as fundamental questions about quality of care and its economic implication. A basic problem is rooted in the inevitable contradiction of the efforts towards a highly qualified-i.e. specialised-care on the one hand and those towards continuity on the other hand.
The authors are discussing the results of the international literature with regards to referrals between ambulatory physicians. There are still few studies on this problem and the methodologies used are often too different to make valid comparisons. However, the earned results suggest more questions than they give answers to the determinants of the referral process. This can be explained by the multidimensionality of factors which are involved in the decision to refer a patient to another practitioner, particularly by the complex interaction between the characteristics of each patient, practitioner and the sanitary system itself.
BACKGROUND: This study attempted to assess the time trends in lifestyle and cardiovascular risk factors in the Swiss region of Vaud-Fribourg (population 784,000). METHODS: Three surveys (1984/1985, 1988/1989, and 1992/1993), based on independent representative samples (n = 3,300) of the population ages 25 to 74, were conducted within the framework of the international WHO-MONICA Project. RESULTS: The most favorable changes were observed in reported behaviors: increased physical activity in leisure time, healthier dietary habits (switch from unskimmed milk, butter, and meat to skimmed milk, margarine, and fish, with no change for fruits and vegetables), and lower prevalence of regular smoking among men (from 32 to 28%). Body mass index did not vary significantly, apart from an increase in the prevalence of obesity among men (from 11 to 15%). Total cholesterol varied only slightly, while the HDL cholesterol levels decreased steadily (from 1.37 to 1.19 mmol/L among men; from 1.59 to 1.51 among women). Average systolic blood pressure regressed among women (from 127.2 to 124.4 mm Hg), while the prevalence of untreated hypertension increased among older men. CONCLUSION: The self-reported changes in lifestyle were only partially reflected by favorable trends in objective measurements. Physical activity, even at moderate intensity, and consumption of fruits, vegetables, and fiber in general should be promoted.
OBJECTIVE: To measure any difference in the utilization of hospital resources between alcoholic patients and nonalcoholic patients (controls) in a department of internal medicine. DESIGN: Prospective comparative study. Alcoholics were identified as patients with Michigan Alcoholism Screening Test (MAST) scores of greater than or equal to 8. Controls were defined as patients with MAST scores of less than or equal to 4, and matched with alcoholics for sex, age, and time of admission. The length of stay, as well as several indicators of utilization of diagnostic and therapeutic procedures, was used for the comparison of resource utilization. SETTING: General wards of internal medicine of a 1,000-bed city and teaching hospital in Lausanne, Switzerland. PARTICIPANTS: One hundred and three alcoholic patients and 103 controls aged 20-75 years, admitted from September 1, 1988, to March 18, 1989. RESULTS: Alcoholics had the same lengths of stay (16 days), durations of intravenous infusions (six days), and durations of bladder catheterization (one day). Statistically nonsignificant differences were found between alcoholics and nonalcoholics regarding the charges for routine laboratory examinations [693 vs. 734 Swiss francs (Sfrs)], antibiotic therapies (218 vs. 145 Sfrs), and x-ray procedures (568 vs. 774 Sfrs; p = 0.06). The average number of electrocardiograms (two vs. five; p less than 0.005) and the duration of intensive care unit (ICU) stay (one vs. two days; p less than 0.05) were significantly lower for alcoholics than for controls. A total hospital charges index was also lower for alcoholics than for controls (11,900 Sfrs vs. 12,800 Sfrs), but not significantly. CONCLUSION: The authors' results suggest that alcoholics do not use more hospital resources per admission than do nonalcoholics. Moreover, alcoholics tend to use less frequently some procedures, such as the ICU, electrocardiography, and x-ray examinations. Several hypotheses are developed to explain these results in relation to those of previous studies, which showed more use of medical care by alcoholics than by nonalcoholics.
Self-reported drinking habits were examined in a random sample of 1067 persons aged 25-64 years in the Seychelles, a country in epidemiological transition where consumption of home-brewed, mostly unregistered beverages has been traditionally high. Alcohol consumption was calculated from respondents reporting at least one drink per week ('regular drinkers'). Among men, 51.1% were regular drinkers and had average intake of 112.1 ml alcohol a day. Among women, 5.9% were regular drinkers and had 49.7 ml alcohol a day. Frequency of drinking, but not amount per drinker, was slightly less in the 25-34-year than older-age categories. Home-brews (mostly palm toddy and fermented sugar cane juice) were consumed by 52% of regular drinkers and accounted for 54% of the total alcohol intake reported by all regular drinkers. Based on the reported consumption by regular drinkers only, the average annual alcohol consumption amounted respectively to 20.7 litres and 1.2 litres per man and woman aged 25-64 years, or, using extrapolation, 13.2 litres and 0.8 litres per man and woman respectively of the total population. These values may underestimate the true figures by half, since reported beer consumption accounted for 53% of beer sales. Socio-economic status was associated strongly and inversely with home-brew consumption, but slightly and positively with consumption of commercially marketed beverages. Alcohol intake was associated with smoking, high-density lipoprotein cholesterol, carbohydrate-deficient transferrin and blood pressure, but not with age and body mass index. In conclusion, these data show high alcohol consumption in the Seychelles with an important gender difference, a large proportion of alcohol derived from home-brews, and opposite tendencies for the relationships between socio-economic status and home-made or commercially marketed beverages.
OBJECTIVE: To test the hypothesis that anxiety, depressive, or cognitive disorders are associated with an increase in length of stay of physical rehabilitation inpatients. DESIGN: Secondary analysis of a 1-yr prospective data recording. Three treatment and rehabilitation centers in the Canton of Vaud (Switzerland). Ninety-five percent of inpatients admitted from November 15, 1990, to November 14, 1991, agreed to participate. Apart from length of stay, data consisted of demographic and medical data results from the Hospital Anxiety and Depression Scale, Mini-Mental State Score, and Functional Autonomy Measurement System. Multivariate linear regression was used in the analysis. RESULTS: The presence of anxiety or depression altered length of stay in a bivariate analysis, although all effects disappeared in a multivariate approach. Factors that had an independent association with length of stay were gender, length of stay in an acute care hospital before hospitalization, treatment and rehabilitative centers, Functional Autonomy Measurement System mobility score, and Functional Autonomy Measurement System Activities of Daily Living score. Results concerning the association between cognition abilities and length were similar. CONCLUSIONS: Our results recognize that an influence of psychiatric disorders acted on length of stay through a relationship between the psychiatric status and the control variables. If mental state influences physical state, then early intervention studies are desirable. If somatic state induces mental alterations, then interventions directed toward the psychiatric sphere will bring mostly qualitative benefits (amelioration of well-being without remarkable effects on length of stay).
In recent years, increasingly high rates of cardiovascular diseases have been recorded in the Seychelles. A survey was performed to investigate the prevalence of cardiovascular risk factors in that population, which is shifting from its traditional habits to a westernized lifestyle. The Seychelles population is of predominantly black African origin. A sex- and age-stratified random sample of 1,309 subjects was drawn from 21,256 people aged 25-64 years. A response rate of 86% was achieved. The data showed a high prevalence of hypertension (25%) and cigarette smoking (54%) in men and a high prevalence of hypertension (20%) and obesity (21%) in women. Hypercholesterolemia (greater than 6.5 mmol/l) was found in 9% of men and 15% of women. High density lipoprotein cholesterol levels (mean +/- SD) were higher in men (1.42 +/- 0.49 mmol/l) than in women (1.36 +/- 0.34 mmol/l). High levels of lipoprotein(a) (mean +/- SD) were found both in men (319 +/- 362 mg/l) and women (328 +/- 415 mg/l). The high prevalence of cardiovascular risk factors identified in the Seychelles indicates a pressing current need for effective preventive strategies.
Available data on the nutritional status of alcoholics is controversial. The present study was conducted to assess the frequency of malnutrition in alcoholic inpatients. The objectives were to (1) compare anthropometric data of hospitalized alcoholic and nonalcoholic patients and (2) evaluate the association between alcoholism and protein-energy malnutrition. It was a cross-sectional comparative study including a stratified analysis to control for potential confounding factors. Alcoholics were identified as patients with a score from the Michigan Alcoholism Screening Test > or = 8 among patients admitted consecutively to the general wards of a department of internal medicine; they were matched for sex, age, and time of admission with nonalcoholic patients (Michigan Alcoholism Screening Test score < or = 4). Nutritional status was assessed using weight, height, midarm circumference, and tricipital skinfold thickness values, which were then used to determine the Quetelet body mass index and the mid-arm muscle circumference. The study took place in general wards of internal medicine in a 1000-bed city and teaching hospital in Lausanne, Switzerland. The participants were 93 alcoholic patients and 93 controls aged 20 to 75 years, admitted from September 1, 1988, to March 18, 1989. Alcoholics were characterized by a low rate of severe protein-energy malnutrition (< 5%); their average body weight was normal, similar to the weight of nonalcoholic inpatients, and not greatly influenced by the presence or severity of concomitant liver disease. However, tricipital skinfold thickness was lower in alcoholics than in nonalcoholics (8 mm vs 10 mm, p < .05, and 13 mm vs 20 mm, p < .01, in men and women, respectively).(ABSTRACT TRUNCATED AT 250 WORDS)