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PubMed1985

Switzerland's participation in MONICA.

Switzerland is currently participating in the multicenter study "Monitoring of Trends and Determinants in Cardiovascular Disease - MONICA". Incidence of acute myocardial infarction will be studied over a period of ten years in a target population. The results will be compared with changes in medical care and the spread of known risk factors for cardiovascular disease in the population. This paper describes how the different data will be registered in Switzerland and how far the work has progressed up to now.

Adult↗
PubMed1986

[Epidemiology of colorectal cancer--internationally and in Switzerland].

The descriptive epidemiology of colorectal cancer in Switzerland is presented and compared to international geographic patterns and time trends. Switzerland has a typical western pattern of relatively high incidence and mortality rates. Mortality from colon cancer is stable with a slight male preponderance; rectal cancer mortality is decreasing, especially in females. The proportion of rectal cancers in the incidence data of colorectal cancer is not as prominent as shown by French or German cancer registries. There is an urban-rural-gradient, more prominent in colon than in rectal cancer. As in other countries, white collar occupations show elevated PMRs and manual occupations low ones, a finding which is confounded with the geographical distribution of these occupations.

Adult↗
PubMed2003

Urinary iodine concentration during pregnancy in an area of unstable dietary iodine intake in Switzerland.

We prospectively investigated urinary iodine concentration (UIC) in pregnant women and in female, non-pregnant controls in the canton of Berne, Switzerland, in 1992. Mean UIC of pregnant women [205 +/- 151 microg iodine/g creatinine (microg l/g Cr); no. = 153] steadily decreased from the first (236 +/- 180 microg l/g Cr; no. = 31) to the third trimester (183 +/- 111 microg l/g Cr, p < 0.0001; no. = 66) and differed significantly from that of the control group (91 +/- 37 microg l/g Cr, p < 0.0001; no. = 119). UIC increased 2.6-fold from levels indicating mild iodine deficiency in controls to the first trimester, demonstrating that high UIC during early gestation does not necessarily reflect a sufficient iodine supply to the overall population. Pregnancy is accompanied by important alterations in the regulation of thyroid function and iodine metabolism. Increased renal iodine clearance during pregnancy may explain increased UIC during early gestation, whereas increased thyroidal iodine clearance as well as the iodine shift from the maternal circulation to the growing fetal-placental unit, which both tend to lower the circulating serum levels of inorganic iodide, probably are the causes of the continuous decrease of UIC over the course of pregnancy. Mean UIC in our control group, as well as in one parallel and several consecutive investigations in the same region in the 1990s, was found to be below the actually recommended threshold, indicating a new tendency towards mild to moderate iodine deficiency. As salt is the main source of dietary iodine in Switzerland, its iodine concentration was therefore increased nationwide in 1998 for the fourth time, following increases in 1922, 1965 and 1980.

Adult↗
PubMed2005

Exposure to and annoyance with second-hand smoke in Switzerland: results of the Tobacco Monitoring survey.

OBJECTIVES: To present selected results on exposure to second-hand smoke and experienced annoyance with second-hand smoke in the Swiss population, particularly in restaurants and in the workplace. METHODS: The data were collected as part of the Swiss Survey of Tobacco Use ("Tobacco Monitoring") commissioned by the Swiss Federal Office of Public Health. It is a representative, continuous survey of tobacco consumption among 14- to 65-year-olds in Switzerland. Since January 2001, four times a year a new sample of 2,500 persons has been taken (i.e. 10000 participants annually). The survey was conducted using standardized telephone interviews in German, French and Italian. RESULTS: Approximately half of the working population in Switzerland is exposed to second-hand smoke in the workplace. In restaurants, cafes and bars, nearly 9 out of 10 people are exposed to environmental tobacco smoke. Non-smokers in particular report annoyance with second-hand smoke. CONCLUSIONS: The Swiss population has a high level of exposure to second-hand smoke. There is a need for public health educational programs and legislation aiming at banning smoking in public areas and in the workplace.

Adolescent↗
PubMed2002

[Mortality of 1880-1980 generations in Switzerland: a rereading of evolution of mortality based on longitudinal data].

OBJECTIVES: Seek to explain the declining mortality rates observed in Switzerland using a different approach from conventional period analyses. METHODS: Analysis of the mortality rates for cohorts born between 1880 and 1980 in Switzerland. RESULTS: While the mortality transition was a constant feature of the 20th century, mortality receded most sharply among the 1900 to 1940 birth cohorts. Life expectancy gains were much lower for the pre-1900 cohorts, while early trends for the post-1940 cohorts point to a slowdown in the rate of mortality decline. These findings may be connected with the social and health conditions in which the different cohorts lived. CONCLUSION: In contrast to the cross-sectional analysis, the longitudinal approach shows that the decline in mortality suddenly stops with the 1940 cohort.

Adolescent↗
PubMed2004

[Survey on practice of regional anaesthesia in Germany, Austria, and Switzerland. Part 3: Methods in obstetric anaesthesia].

The practice of regional anaesthesia in German speaking countries was investigated by a survey. The last part of the trilogy contains the presentation and evaluation of the data about the methods in obstetric anaesthesia. In 2002 questionnaires were mailed to 750 randomly selected departments of anaesthesia, 384 hospitals (51.2%) responded of which 278 had an obstetric unit. Caesarean section rate was 22.5+/-8.2% and for elective caesarean section spinal anaesthesia was mostly used. General anaesthesia was never used in 58.3% of Swiss, 10.2% of German, and 21.1% of Austrian hospitals. For non-elective caesarean section 42.1% of the hospitals often used a spinal anaesthesia, and 44.8% sometimes, in Switzerland these were 92.9% and 7.1%, respectively. Pain relief for labour was usually achieved with epidural anaesthesia or drugs. The trend from general to regional anaesthesia for caesarean section is continued, as is the trend from local infiltrative techniques to epidural anaesthesia for vaginal delivery. Switzerland was in the forefront for these developments.

Adult↗
PubMed2001

Epidemiology of type I diabetes mellitus in Switzerland: steep rise in incidence in under 5 year old children in the past decade.

AIMS/HYPOTHESIS: In this nationwide prospective study we wanted to verify the trend of increasing diabetes incidence data from our earlier retrospective analysis of the military registry of Swiss men. SUBJECTS AND METHODS: The data collection of newly diagnosed children in Switzerland at an age younger than 15 years started in 1991. The countrywide survey used a small questionnaire which was sent back to the study centre. The questionnaire was anonymous and contained: hospital of diagnosis, initials, sex, birth date, date of diagnosis, residence, country of citizenship, and responsible physician. General data on the population were taken from publications of the Swiss Federal Statistical Office. RESULTS: A total of 941 children below the age of 15 years with newly diagnosed Type I (insulin-dependent) diabetes mellitus were collected (434 girls, 507 boys). The incidence in children aged 0 to 14 years rose significantly between 1991 and 1999 with a yearly average increase of 5.1%. In the age group 0 to 4 years a more than four-fold increase in incidence from 2.4/100,000 per year to 10.5/100,000 per year (p = 0.0002) was recorded, whereas the age-specific incidence in the 5 to 9-year-old and 10 to 14-year-old children did not change during the data collection period. The incidence was significantly higher in boys than in girls, whereas no difference was found between rural and urban populations. CONCLUSION/INTERPRETATION: The incidence of Type I diabetes is rising in children living in Switzerland but only the youngest age group of under 5 years of age is affected showing a large annual average increase of 23.8%.

Adolescent↗
PubMed2004

Epidemiology and direct medical costs of osteoporotic fractures in men and women in Switzerland.

The aim of this study was to estimate the hospitalization incidence and the total number of hospital days related to all fractures and osteoporotic fractures in the year 2000 in Switzerland and to compare these with data from other frequent disorders in men and women. The official administrative and medical statistics database of the Swiss Federal Office of Statistics (SFOS) from the year 2000 was used. It covered 81.2% of all registered patient admissions and was considered to be representative of the entire population. We included the ICD-10 codes of 84 diagnoses that were compatible with an underlying osteoporosis and applied the best matching age-specific osteoporosis attribution rates published for the ICD-9 diagnosis codes to the individual ICD-10 codes. To preserve comparability with previously published data from 1992, we grouped the data related to the ICD-10 fracture codes into seven diagnosis pools (fractures of the axial skeleton, fractures of the proximal upper limbs, fractures of the distal upper limbs, fractures of the proximal lower limbs, fractures of the distal lower limbs, multiple fractures, and osteoporosis) and analyzed them separately for women and men by age group. Incidences of hospitalization due to fractures were calculated, and the direct medical costs related to hospitalization were estimated. In addition, we compared the results with those from chronic pulmonary obstructive disease (COPD), stroke, acute myocardial infarction, heart failure, diabetes and breast carcinoma from the same database. In Switzerland during 2000, 62,535 hospitalizations for fractures (35,586 women and 26,949 men) were registered. Fifty-one percent of all fractures in women and 24% in men were considered as osteoporotic. The overall incidences of hospitalization due to fractures were 969 and 768 per 100,000 in women and men, respectively. The hospitalization incidences for fractures of the proximal lower limbs and the axial skeleton increased exponentially after the age of 65 years. The direct medical cost of hospitalization of patients with osteoporosis and/or related fractures was 357 million CHF. Hip fractures accounted for approximately half of these costs in women and men. Among other common diseases in women and men, osteoporosis ranked number 1 in women and number 2 (behind COPD) in men. When compared with data from 1992, the average length of stay had shortened by 8.4 days for women and 4.7 days for men, leading to a decrease of almost 40% in direct medical costs related to acute hospitalizations. This apparent decrease in cost might result from a shift into the ambulatory cost segment, for which the assessment and management tools need to be developed. We conclude that, in 2000, osteoporosis continued to be a heavy burden on the Swiss healthcare system. Lack of awareness of the disease and its consequences prevents widespread use of drugs with anti-fracture efficacy. This limits their potential to reduce costs.

Adolescent↗
PubMed2004

A model of osteoporosis impact in Switzerland 2000-2020.

The aim of our study was to develop a modeling framework suitable to quantify the incidence, absolute number and economic impact of osteoporosis-attributable hip, vertebral and distal forearm fractures, with a particular focus on change over time, and with application to the situation in Switzerland from 2000 to 2020. A Markov process model was developed and analyzed by Monte Carlo simulation. A demographic scenario provided by the Swiss Federal Statistical Office and various Swiss and international data sources were used as model inputs. Demographic and epidemiologic input parameters were reproduced correctly, confirming the internal validity of the model. The proportion of the Swiss population aged 50 years or over will rise from 33.3% in 2000 to 41.3% in 2020. At the total population level, osteoporosis-attributable incidence will rise from 1.16 to 1.54 per 1,000 person-years in the case of hip fracture, from 3.28 to 4.18 per 1,000 person-years in the case of radiographic vertebral fracture, and from 0.59 to 0.70 per 1,000 person-years in the case of distal forearm fracture. Osteoporosis-attributable hip fracture numbers will rise from 8,375 to 11,353, vertebral fracture numbers will rise from 23,584 to 30,883, and distal forearm fracture numbers will rise from 4,209 to 5,186. Population-level osteoporosis-related direct medical inpatient costs per year will rise from 713.4 million Swiss francs (CHF) to CHF946.2 million. These figures correspond to 1.6% and 2.2% of Swiss health care expenditures in 2000. The modeling framework described can be applied to a wide variety of settings. It can be used to assess the impact of new prevention, diagnostic and treatment strategies. In Switzerland incidences of osteoporotic hip, vertebral and distal forearm fracture will rise by 33%, 27%, and 19%, respectively, between 2000 and 2020, if current prevention and treatment patterns are maintained. Corresponding absolute fracture numbers will rise by 36%, 31%, and 23%. Related direct medical inpatient costs are predicted to increase by 33%; however, this estimate is subject to uncertainty due to limited availability of input data.

Aged↗
PubMed2001

Incidence, risk factors, and prevention of biliary tract injuries during laparoscopic cholecystectomy in Switzerland.

Bile duct injury (BDI) during laparoscopic cholecystectomy (LC) which may result in patient disability or death are reported to occur more frequently when compared to open surgery. The aim of this nationwide prospective study beyond the laparoscopic learning curve was to analyze the incidence, risk factors, and management of major BDI. During a 3-year period (1995-1997) 130 items of all LC data were collected on a central computer system from 84 surgical institutions in Switzerland by the Swiss Association of Laparoscopic and Thoracoscopic Surgery and evaluated for major BDIs. Simple biliary leakage was excluded from analysis. There were 12,111 patients with a mean age of 55 years (3-98 years) enrolled in the study. The overall BDI incidence was 0.3%, 0.18% for symptomatic gallstones, and 0.36% for acute cholecystitis. In cases of severe chronic cholecystitis with shrunken gallbladder, the incidence was as high as 3%. Morbidity and mortality rates were significantly increased in BDIs. BDI was recognized intraoperatively in 80.6%, in 64% of cases by help of intraoperative cholangiography. Immediate surgical repair was performed laparoscopically (suture or T-drainage) in 21%; in 79%, open repair (34% simple suture, 66% Roux-en-Y reconstruction) was needed. The BDI incidence did not decrease during the last 7 years. In 47%, BDIs were caused by experienced laparoscopic surgeons, perhaps because they tend to operate on more difficult patients. In conclusion, the incidence of major BDIs remains constant in Switzerland at a level of 0.3%, which is still higher when compared to open surgery. However, most cases are now detected intraoperatively and immediately repaired which ensures a good long-term outcome. For preventing such injuries, exact anatomical knowledge with its variants and a meticulous surgical dissecting technique especially in case of acute inflammation or shrunken gallbladder are mandatory.

Acute Disease↗
PubMed2000

Propylene glycol monomethyl ether (PGME) exposure. 2. Identification of products containing PGME, their importance and their use in Switzerland.

OBJECTIVE: In order to identify users of PGME and potential exposures, a chemical registration database maintained in Switzerland was analysed. METHOD: The database contains information on the composition of products (qualitative and quantitative), the field of use, the year of registration and the domain of commercial applications (public or professional). RESULTS: Identification of potential exposures in Switzerland was carried out. Out of a total of 150,000 products, 2334 were found to contain PGME and most contained between 1% and 10% PGME. There was a great increase in the number of products declared between 1983 and 1991. The principal fields of use were in inks, varnishes and paints.

Consumer Product Safety↗
PubMed2003

Prevention of vitamin K deficiency bleeding with oral mixed micellar phylloquinone: results of a 6-year surveillance in Switzerland.

UNLABELLED: In 1995, a new form of vitamin K prophylaxis with two oral doses of 2 mg mixed micellar phylloquinone (Konakion MM) on the 1st and 4th day of life was introduced in Switzerland. It was hoped that this new galenic preparation of phylloquinone would protect infants with insufficient or absent bile acid excretion from late vitamin K deficiency bleeding (VKDB). Subsequently, the occurrence of VKDB was monitored prospectively between July 1, 1995 and June 30, 2001 with the help of the Swiss Paediatric Surveillance Unit (SPSU). Over a period of 6 years (475,000 deliveries), there were no cases of early (<24 h of age), one case of classical (2-7 days of life), and 18 cases of late (1-12 weeks) VKDB fulfilling standard case definitions. In 13/18 patients with late VKDB there was pre-existing liver disease and in 4/18 patients, parents had refused prophylaxis. The incidence of late VKDB for infants with completed Konakion MM prophylaxis was 2.31/100,000 (95% CI: 1.16-4.14) and for the entire population 3.79/100,000 (95% CI: 2.24-5.98). There was only one case of late VKDB after complete prophylaxis in an infant without underlying liver disease. CONCLUSION: two oral doses of 2 mg of a mixed micellar vitamin K preparation failed to abolish VKDB. The recommendations for vitamin K prophylaxis in Switzerland have therefore been changed to include a third dose at 4 weeks of age. Starting on January 1, 2004, the incidence of vitamin K deficiency bleeding will again be monitored prospectively by the Swiss Paediatric Surveillance Unit.

Administration, Oral↗
PubMed2005

Acceptance and timeliness of standard vaccination in children with chronic neurological deficits in north-western Switzerland.

UNLABELLED: There are no special recommendations for basic vaccinations in patients with chronic neurological deficits distinct from the nationwide advocated schedule in Switzerland. Reports describing adverse neurological events possibly related to vaccinations have attracted public attention. It is unclear if patients with chronic neurological deficits are more reluctantly vaccinated compared to healthy children. We therefore investigated the acceptance of vaccinations in such patients and healthy controls in a retrospective case-control study. At the University Children's Hospital, Basel, Switzerland we investigated 100 patients with chronic neurological deficits and 200 age-matched healthy controls regarding the issue of vaccination rates and ages. The total number of administered vaccinations against diphtheria, tetanus, pertussis, polio, Haemophilus influenzae type b (Hib), mumps, measles, rubella and hepatitis B were significantly lower in patients compared to healthy controls ( P < 0.01 for each of the respective vaccines). Patients had an increased risk to receive the third pertussis, diphtheria, and tetanus vaccinations (relative risks (RR) for late vaccination 1.53, 1.53, and 1.54 respectively, P < 0.01 for all comparisons), the second (RR = 1.60, P < 0.05) and third Hib vaccinations (RR = 1.52, P < 0.05), and the third polio vaccination (RR = 1.43, P < 0.05) later than controls. CONCLUSION: Children with chronic neurological deficits received fewer vaccinations than healthy controls. In addition, patients received vaccinations later than healthy children. Hence, it may be assumed that children with chronic neurological deficits are at an increased risk to acquire preventable infections. Therefore, vaccination should be promoted as part of the consultation during a routine appointment with the specialist.

Adolescent↗
PubMed1999

Oral vitamin K1 prophylaxis for newborns with a new mixed-micellar preparation of phylloquinone: 3 years experience in Switzerland.

UNLABELLED: In 1995, a new water-soluble mixed-micellar analogue of vitamin K1 (Konakion MM paediatric) was introduced in Switzerland to replace the formerly used fat-soluble Konakion drops for the prevention of vitamin K1-deficiency-bleeding (VKDB) in infants. According to the new guidelines, an oral dose of 2 mg is given after birth and again on the 4th day of life. We examined the compliance with these guidelines and the impact on the incidence of VKDB. To assess compliance, questionnaires were sent to all hospitals with delivery services 6 months after the introduction of the new guidelines. Using the database of the Swiss Paediatric Surveillance Unit (SPSU) which records rare paediatric diseases, we assessed the incidence of VKDB in Switzerland between July 1995 and June 1998. In addition, we determined the precise circumstances under which the episodes of VKDB occurred. More than 99% of infants received vitamin K1 prophylaxis. Since July 1995, 93% of newborns have received prophylaxis according to the new guidelines; the remaining infants were given fat-soluble Konakion drops or parenteral vitamin K1. Within 3 years, one case of classical and 12 cases of late-onset VKDB (11 confirmed, 1 probable) were reported to the SPSU. Of the 11 confirmed late-onset cases, 7 received the recommended prophylaxis, whereas 3 had not and 1 had been given fat-soluble Konakion drops. All confirmed cases of late-onset VKDB occurred in fully breast-fed infants and 8 of 11 had hepatobiliary disease. CONCLUSION: With the introduction of two oral doses of a mixed-micellar vitamin K1 preparation administered in the 1st week of life, the incidence of late vitamin K1-deficiency-bleeding has decreased from 7.2:100,000 between 1986-1987 to 2.8:100,000 between 1995 and 1998. This regimen may be suitable for prophylaxis of vitamin K1-deficiency-bleeding, however, it does not fully protect infants with cholestatic disease from late-onset bleeding. If oral prophylaxis is considered for these infants, vitamin K1 has to be administered repeatedly to all infants during the breast feeding period.

Administration, Oral↗
PubMed2001

Phytophenological trends in Switzerland.

Nation-wide phenological observations have been made in Switzerland since 1951. In addition to these observation programmes, there are two very long phenological series in Switzerland: leaf bud burst of horse-chestnut trees has been observed in Geneva since 1808 and full flowering of cherry trees in Liestal since 1894. In addition to the presentation of these two long phenological series, trends for 896 phenological time series have been calculated with national data from 1951 to 1998. The earlier bud burst of horse-chestnut trees in Geneva can be attributed mainly to the city effect (warmth island). This phenomenon was not observed with the cherry tree flowering in Liestal. A clear trend towards earlier appearance dates in spring and a weak tendency towards later appearance dates in autumn could be shown with data from the national observation network. It must be noted that different phenophases and plant species react differently to various environmental influences.

Acclimatization↗
PubMed2004

Risk of Borrelia burgdorferi infection in western Switzerland following a tick bite.

The aim of this study was to define the risk of developing Lyme borreliosis after a tick bite. A survey was conducted from 1993 to 1995 in the western part of Switzerland in a group of patients who presented for treatment of a recent tick bite. Only patients with negative serological tests (enzyme-linked fluorescent assay screening test, and IgG and IgM immunoblots) at the first consultation and for whom a second blood sample was available 2 months later were included in the study. Of the 376 patients included, 266 had no clinical manifestation (group 1) and 110 had a small local cutaneous reaction (<2 cm) (group 2). The tick was available for 160 patients. Seroconversion was observed in 4.5% of 376 patients, 3.4% in group 1 and 7.2% in group 2. Typical erythema migrans, confirmed by seroconversion, was observed in three of 376 (0.8%) patients, while five of 376 (1.3%) patients developed a skin lesion without seroconversion. No other clinical manifestation of Lyme borreliosis was observed among these 376 patients. Borrelia detection in ticks did not correlate significantly with the risk of Lyme borreliosis. In conclusion, the risk of developing Lyme borreliosis in western Switzerland after a tick bite is low, and therefore, prophylactic antibiotics are not required.

Adolescent↗
PubMed2005

Frequency of Norovirus in stool samples from patients with gastrointestinal symptoms in Switzerland.

To determine the frequency of sporadic community-acquired Norovirus (NV) infection in the German-speaking part of Switzerland, an evaluation of gastroenteritis cases seen in physicians' practices between July 2001 and July 2003 was conducted. A total of 699 stool specimens documented to be free of common bacterial pathogens was screened for the presence of NV by RT-PCR. NV was detected in 125 (17.9%) of these specimens. In the seasonal analysis, the highest rate of NV-positive samples (38.3%) was found between January and March 2002. After July 2002, the study was expanded to additionally test for NV in stool samples containing a known bacterial pathogen. Among 132 such specimens, NV was detected in only one. This suggests that NV mixed-infections are playing a marginal role in Switzerland.

Caliciviridae Infections↗
PubMed2000

Swiss Army Survey in Switzerland to determine the prevalence of Francisella tularensis, members of the Ehrlichia phagocytophila genogroup, Borrelia burgdorferi sensu lato, and tick-borne encephalitis virus in ticks.

A total of 6071 Ixodes ricinus ticks were collected on Swiss Army training grounds in five regions of Switzerland. The aim of the survey was to assess the prevalence of ticks infected with the human pathogens Francisella tularensis, members of the Ehrlichia phagocytophila genogroup, Borrelia burgdorferi sensu lato, and the European tick-borne encephalitis virus. TaqMan PCR (PE Biosystems, USA) and TaqMan RT-PCR (PE Biosystems) analyses were performed on DNA and RNA extracted from pools of ten ticks grouped by gender. Here, for the first time, it is shown that ticks may harbor Francisella tularensis in Switzerland, at a rate of 0.12%. Furthermore, 26.54% of the ticks investigated harbored Borrelia burgdorferi sensu lato, 1.18% harbored members of the Ehrlichia phagocytophila genogroup, and 0.32% harbored the European tick-borne encephalitis virus. A new instrumentation was applied in this study to carry out and analyze more than 2300 PCR reactions in only 5 days. Furthermore, the results reveal that people working in outdoor areas, including army personnel on certain training grounds contaminated with ticks containing tick-borne pathogens, are at risk for different tick-borne diseases.

Animals↗