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Prevalence of positive skin prick tests, allergic asthma, and rhinoconjunctivitis in teenagers in northern Sweden.

The prevalence of positive skin prick tests (SPT) for common allergens and symptoms of allergic rhinoconjunctivitis or asthma was investigated in Umeå in northern Sweden in 1987. Skin prick tests with 10 allergens common in Sweden and a questionnaire were used to examine 1112 teenagers. All subjects with a positive skin prick test or symptoms were interviewed, and they were further investigated by a serum specific IgE test, a ventilatory lung function test, and a physical examination. At least one skin prick test was positive in 43% of the subjects. Ninety-three percent had at least one positive skin prick test to one of the three most common allergens: cat, timothy grass, and birch. The prevalence of current allergic rhinoconjunctivitis was 17%, current allergic asthma 2.8%, and current asthma (both allergic and nonallergic) 6.8%. Multiple logistic regression analysis showed that the most important risk factors for current asthma were sex (being a girl) and atopy. Heredity of asthma or rhinoconjunctivitis and being born in the winter (October-March) also increased the risk. In atopic subjects, having a mother who smoked and heredity of asthma increased the risk. For allergic rhinoconjunctivitis, heredity increased the risk of getting rhinoconjunctivitis.

Adolescent↗

Skin prick tests and specific IgE in adults from three different areas of Sweden.

The aims of this part of the European Respiratory Health Survey were to estimate the prevalence of atopic sensitization to inhalant allergens among adults in three different areas of Sweden and to investigate the association between sensitization and certain risk factors. Randomly selected subjects aged 20-46 years from Göteborg, Uppsala, and Västerbotten were investigated with the skin prick test (SPT), analyses for specific IgE antibodies in serum (specific IgE) and total serum immunoglobulin E (total IgE), and a questionnaire. SPT was performed in 1572 subjects and analyses of specific IgE in 1470. One or more positive SPT were found in 35.6% and one or more positive specific IgE in 31.7%-approximately the same values in all three areas. Birch, grass, cat, and dog were the most frequent sensitizing agents and occurred at similar prevalences, i.e., around 15%, in all areas. The SPT to mite was positive in 14.1% in Göteborg, 7.4% in Uppsala, and 7.9% in Västerbotten. A positive SPT to pellitory of the wall (Parietaria), not described previously in Sweden, was found in 3.4% in Göteborg. Living in Göteborg was independently associated with a higher risk of a positive SPT to mite and Parietaria. Heredity, male sex, and low age were independently associated with atopy. Birth in the Scandinavian countries was independently associated with sensitization to cat, whereas birth in other countries was associated with sensitization to mite. The overall prevalence of atopy was similar in the three Swedish areas, but the sensitizing allergens varied. There is an indication that sensitization is increasing in the population, as low age was associated with sensitization. Sensitization to cat, but not to mite, appears to be particularly important in persons born in the Scandinavian countries.

Adult↗

Incidence of asthma in adults--report from the Obstructive Lung Disease in Northern Sweden Study.

Incidence studies offer a better opportunity to study risk factors for asthma than do prevalence studies. However, regular prospective follow-ups of large cohorts are difficult to perform, and that is why direct measurement of the incidence rate of asthma is almost impossible. Thus, cross-sectional follow-up studies of defined cohorts can be used to provide data on incidence. In 1986, a postal questionnaire survey on respiratory symptoms and diseases was performed in the northernmost province of Sweden. The population sample comprised all subjects born in 1919-20, 1934-5, and 1949-50 in eight representative areas of the province, which comprises 25% of the total area of Sweden. Completed answers were given by 5698 subjects (86%) of the 6610 subjects invited to the study. In 1992, the cohort was invited to a follow-up survey during the same season as in 1986, and 6215 subjects were traced. Of the 5393 subjects who answered the questionnaire, 4932 had participated in the 1986 survey, or 87% of those who participated in 1986. For the period 1986-92, the cumulative incidences of asthma were 4.9 and 5.0%, respectively, as assessed by the questions, "Have you ever had asthma?" and "Have you been diagnosed as having asthma by a physician?" Thus, the results indicate a mean annual cumulative incidence of asthma of 0.8%. After correction of the results for subjects who were diagnosed as having asthma in the clinical part later in the 1986 study, the mean annual cumulative incidence of asthma was found to be 0.5%. Risk factors were family history of asthma (OR 3.46) and current and former smoking, while female sex was a strong trend.

Adult↗

Environmental assessment of Dermatophagoides mite-allergen levels in Sweden should include Der m 1.

The major allergen of Dermatophagoides microceras, Der m 1, as well as the allergens of D. pteronyssinus and D. farinae, Der p 1 and Der f 1, were analyzed in the homes of 111 asthmatic children in three climatic regions in Sweden. The numbers and species of mites were determined by microscopy, and circulating IgE antibodies against mites were measured. Der f 1 was the predominant house-dust-mite (HDM) allergen, Der p 1 the least often found, and Der m 1 represented 31% of the allergen load. However, in the Linköping area, Der m 1 was the major HDM allergen (58%). Mite counts and allergen levels correlated well. Current exposure to HDM allergens at home was associated with the serum IgE antibody response to HDM in the children with no threshold level. Of the children with IgE antibodies against HDM, 67% reacted to all three mites. Mite sensitization rates were marginally increased (7%) by the addition of IgE analysis of D. microceras to the routine analysis of IgE antibodies against D. pteronyssinus and D. farinae. Thus, Der m 1 may be an important HDM allergen and should be considered when HDM exposure data are assessed in areas with a climate like that of Sweden.

Adolescent↗

The frequency of PKU and hyperphenylalaninemia in Sweden - a study in institutions for the mentally retarded as well as in neonates.

In a country-wide screening examination in Sweden, PKU was observed in 75 (4.5 per 1,000) and hyperphenylalaninemia in 14 (0.8 per 1,000) of a total of 16,805 patients in institutions for the mentally retarded. In the national neonatal screening program in 1965-1975, which covered nearly 1 million individuals, PKU was observed in 36 and hyperphenylalaninemia in 19 individuals. The incidences of PKU and hyperphenylalaninemia in newborns are calculated to be 1/26,000 and 1/50,000, respectively. In addition, PKU and hyperphenylalaninemia were diagnosed in 14 and 1 non-institutionalized individuals, respectively, born before September 1965. The total numbers of individuals detected as having PKU and hyperphenylalaninemia in Sweden in the present investigation are 125 and 34, respectively.

Adolescent↗

Sjögren-Larsson syndrome in Sweden: distribution of the gene.

The distribution of carriers of the gene for Sjögren-Larsson syndrome in Sweden suggests a center of dispersion in the county of Västerbotten in Northern Sweden. The origin of the spread of the gene can be traced back at least 700 years.

Gene Frequency↗

Work practices relating to intubation and associated procedures in intensive care units in Sweden.

A survey into the current usage of tracheal tubes and associated procedures, such as various sedation regimes and antacid therapy, in intensive care units was carried out in Sweden by sending a questionnaire to physicians in charge of intensive care units in 70 acute hospitals which included seven main teaching hospitals. The purpose of the survey was to see how far the recent advances in tube and cuff design and awareness of the problems caused by prolonged therapeutic paralysis in intensive care units have influenced the attitudes and work practices of physicians in Sweden. Forty-nine replies were received (a 70% response rate). All hospitals used polyvinyl chloride tubes of Magill design, with high residual volume, low pressure cuffs. Intensive care units in 85.7% of teaching hospitals and 47.6% of non-teaching hospitals preferred the nasal route for intubation. Most non-teaching hospitals used a size 7 tube in both adult male and female patients for nasal intubation. The majority of units changed from tracheal tubes to tracheostomy after a period of 1-2 weeks. 85% of all hospitals monitored intracuff pressure as a routine, and in most intensive care units the cuff was inflated to no-leak ventilation. The majority of units rarely used muscle relaxants. Phenoperidine and diazepam were the most popular drugs used for the sedation technique. 71.4% of teaching hospitals and 40.9% of non-teaching hospitals used antacids routinely in patients on intermittent positive pressure respiration. The results are discussed.

Anesthesia↗

Farm-related injury event, social consequences and injury reporting in the Land Lantbruk newspaper in Sweden: a retrospective study of farm-related injury reporting during 2000-2005.

OBJECTIVE: The aim of the present study was to detect how a leading news paper, the Land Lantbruk in Stockholm, Sweden, informs the public and specifically the rural sector in Sweden and the Scandinavian countries concerning injury events (farm-related injury event) and the use of injury prevention and control. Injury reporting in the Land Lantbruk has been studied from the point of injury prevention and control. A study of injury prevention and rural health and safety in Australia shows that the newspaper The Land that serves Australia's rural community should 'be an under-utilised vehicle for news and commentary on rural health and safety issues'. DESIGN: The study period was from January 2000 to February 2005. A total of 178 articles were reviewed and analysed. The articles were available on a newspaper database in the Land Lantbruk newspaper. Articles that addressed farm-related injury event and rural health and safety were chosen and organised into subgroups. RESULTS: Tractor and motor vehicle safety (35%) was most common among the injury reporting. Although the newspaper Land Lantbruk provided excellent coverage of the causes of these events, the reports tended to focus on circumstances and did not provide information on injury prevention or the advantages of also coverage of the social and psychosocial long-term consequences of accidents. CONCLUSION: In the prevention work of reducing farm-related injuries in the rural sector in the Scandinavian countries and decreasing the human suffering represented by this health problem, rural politicians, insurance companies, rural authorities and also handicap organisations should listen more to the injured individuals and their own experiences relative to the difficulty of life after an accident. The reaction of family and relatives, and experiences of the long-term social consequences, have not been included in the media coverage. Journalists at the Land Lantbruk could also share experiences of the Swedish coverage of rural health and safety from Australian journalists from The Land.

Accident Prevention↗

Type 1 diabetes as a risk factor for stroke in men and women aged 15-49: a nationwide study from Sweden.

AIMS: The main objective was to determine premature stroke risk in men and women in Sweden with previous hospital admission for Type 1 diabetes or without previous hospital admission. METHODS: All individuals in Sweden aged 15-34 years at first hospital admission for Type 1 diabetes and aged 15-49 years at first hospital admission for stroke during the study period (1987-2001) were identified. Standardized incidence ratios (SIRs) were calculated to compare premature stroke risk between individuals admitted to hospital with Type 1 diabetes and individuals without hospital admission, after controlling for age, time period, occupation and geographical region. SIRs were also calculated for individuals with diabetic complications. RESULTS: The overall SIRs for premature stroke in men and women with hospital admission for Type 1 diabetes were 17.94 [95% confidence interval (CI) 12.87, 24.36] and 26.11 (95% CI 18.81, 35.32), respectively. Men and women with diabetic nephropathy had the highest significant SIRs of premature stroke: 48.87 and 73.53, respectively. CONCLUSIONS: Our data indicate that young to middle-aged individuals with Type 1 diabetes had a considerably higher risk of premature stroke than those without Type 1 diabetes. This underscores the need to implement vigorous interventions in healthcare settings in order to decrease the risk of premature stroke in individuals with Type 1 diabetes.

Adolescent↗

Prevalence of obesity in Sweden.

Although the prevalence of obesity in Sweden still is low in an international perspective, the development during the last decades is alarming in adults, adolescents and children alike. The prevalence of obesity [body mass index (BMI) > 30 kg m-2] in adults has doubled during the last two decades and is now approximately 10% in both men and women, according to estimates based on self-reported BMI from repeated random samples of the population. However, prevalence estimates based on measured BMI from the WHO MONICA study indicate that the self-reported data result in underestimates. In military conscripts, the prevalence of obesity (BMI > 30 kg m-2) almost quadrupled to 3.2% from 1971 to 1995, while the overweight fraction (BMI > 25 kg m-2) more than doubled to 16.3%. The development in younger age groups seems to be similar; the prevalence of overweight [International Obesity Task Force (IOTF)/Cole] in children aged 10 years in Gothenburg has doubled to 18% (2.9% obese) during the last decade, and similar figures have been reported in other studies. However, most reports on childhood overweight stem from the larger metropolitan areas, and hence may be underestimates because of the urban-rural influence on obesity-status. Recent data from non-urban areas in the northern part of Sweden estimate the prevalence of overweight (BMI > 20 kg m-2) in 10-year-olds to above 30%. In the most comprehensive study in children, including both rural and urban areas, BMI was measured among all children aged 10 years (n = 5517; 92.7% of the population) in the county of Ostergotland, and the prevalence of overweight (IOTF/Cole) was 22% in both boys and girls, of which 4% and 5% were obese respectively.

Adolescent↗

Individuality and community: the contrasting role of the state in family life in the United States and Sweden.

Underlying moral values of individuality versus community and assumptions about what is a "just society" make public policies toward children vastly different in Sweden and the United States. This article explores the origins, cost, and benefits of welfare policies that permit child poverty in the U.S. as a cost of the high value of autonomy/individuality, and policies that prevent child poverty in Sweden, at the cost of economic competitiveness and individual initiative. I conclude that both extremes of moral values have more social costs than benefits but that children should be protected in any nation as the future of the society.

Adult↗

Labour market career among young Finnish immigrants in Sweden: a longitudinal study.

"The conditions for young immigrants in the Swedish labour market have been widely discussed in recent years. One hypothesis put forward is that young immigrants tend to remain in jobs with low wages, high risks of unemployment and bad working environments, and their mobility out of such jobs is low.... Because composition of the immigrant group, through immigration and re-emigration, changes over time, the use of longitudinal studies is especially useful. However, only a few such studies have been conducted in Sweden, none of which gives special attention to the labour market careers of immigrant youth. The aim of this paper is to remedy this deficiency by using comprehensive longitudinal data for the period 1970 to 1990. Finnish-born youth were selected for study because they are the largest immigrant group in Sweden." (SUMMARY IN FRE AND SPA)

Adolescent↗

Attitudes and burden of disease among self-considered migraineurs--a nation-wide population-based survey in Sweden.

The authors have earlier reported a 1-year prevalence of 13.2 +/- 1.9% for migraine in Sweden. This is a subsequent extensive postal survey of the burden of disease and attitudes among migraineurs in a sample (n = 423, 23% men and 77% women, aged 18-74 years) randomly recruited from all main regions of the country, representative of adults in the general Swedish population with self-considered migraine. Results are presented only from participants who after analysis of symptoms were found to fulfil the International Headache Society's migraine criteria. In order to assess headache duration open-mindedly, the strict time criterion 4-72 h was deliberately disregarded as an inclusion criterion. Individuals who did not consider themselves to have migraine were excluded. Less than half of the group (45%) had received a diagnosis of migraine from a physician. Accordingly, a large number of individuals that would not have come to attention in a clinic-based study have been included. The mean attack frequency was 1.3 per month, and the number of attacks per year in Swedish adults is approximately 10 million. A minority (27%) of sufferers have a majority (68%) of all attacks. The mean attack duration was 19 h. A considerable number of individuals reported attacks < 4 h (15.8%) or > 72 h (6.4%). Less than half of the individuals recovered completely between the attacks. Despite this, only every fourth (27%) participant was currently consulting a physician (6% regularly; 21% occasionally). Most of the migraineurs reported absence from school or work, a negative influence of migraine on the most important aspects of life, and an interest in testing other treatments for migraine during the last year. Of those (n = 231) migraineurs who had consulted a physician, about 60% were satisfied with information given or treatment offered. This implies, however, that there is still room for improvement in the management of migraine in Sweden.

Adolescent↗

Detection of human coronavirus NL63, human metapneumovirus and respiratory syncytial virus in children with respiratory tract infections in south-west Sweden.

Two recently detected viruses, human metapneumovirus (hMPV) and coronavirus NL63 (HCoV-NL63), have been associated with acute respiratory tract infections, particularly in young children. This study investigated the frequency of hMPV and HCoV-NL63 infections in Swedish children by screening 221 nasopharyngeal aspirates, collected between November 2003 and May 2005, from 212 children attending the paediatric department of a county hospital in Sweden or submitted from local general practitioners. The samples were originally submitted to be tested for respiratory syncytial virus (RSV), and were examined retrospectively for hMPV and HCoV-NL63 by RT-PCR. Of the 212 patients, 101 were positive for RSV (48%), 22 (10%) were positive for hMPV, and 12 (6%) were positive for HCoV-NL63. The frequency of HCoV-NL63 infection increased from 1% in 2003-2004 to 10% in 2004-2005. Sequence analysis of parts of the coronavirus genomes showed considerable similarity to the HCoV-NL63 prototype sequence. The study demonstrated that HCoV-NL63 and hMPV occur in south-west Sweden with essentially the same frequency, seasonal distribution and clinical characteristics as have been reported in other countries.

Acute Disease↗

Bilateral spastic cerebral palsy--a comparative study between south-west Germany and western Sweden. I: Clinical patterns and disabilities.

The results of a collaborative study of bilateral spastic cerebral palsy (BSCP) between south-west Germany and western Sweden are reported, comprising 249 children in south-west Germany and 264 children in western Sweden. A severe gross motor disability was present in 65 per cent of the German and 62 per cent of the Swedish children; learning difficulties or mental retardation in 73 and 76 per cent; active epilepsy in 28 and 26 per cent; and severe visual disability in 20 and 19 per cent, respectively. Severe disabilities were especially pronounced in children with normal birthweights, in whom the most severe subtypes of BSCP were also found. Leg-dominated BSCP was the predominant subtype among low-birthweight children, but also occurred in more than half of the normal-birthweight children. The authors conclude that the two series were comparable, and that reliable results between countries can be obtained if clear-cut classifications and definitions are used.

Adolescent↗

Emergency contraceptive pills in Sweden: evaluation of an information campaign.

OBJECTIVE: To evaluate a community-based intervention regarding emergency contraceptive pills, including a mass media campaign and information to women visiting family planning clinics. DESIGN: Quasi-experimental. SETTING: Two counties in Sweden. POPULATION: Eight hundred randomly selected women aged 16-30 years, 400 women in the intervention group and 400 in a comparison group. METHODS: Postal questionnaires before (2002) and after (2003) the intervention. MAIN OUTCOME MEASURES: Exposure to the intervention, knowledge, attitudes, practices and intention to use emergency contraceptive pills. RESULTS: Before the intervention, the response rate was 71% (n= 564); after the intervention, the corresponding figure was 83% (n= 467); overall response rate 58%. Two-thirds (64%) of the targeted women had noticed the information campaign. One out of six who had visited a family planning clinic during the intervention year recalled being given information about emergency contraceptive pills. Specific knowledge and attitudes improved over time in both groups, but there was no difference in change between the groups. The proportion of women who had used emergency contraceptive pills increased from 27% to 31% over time. Intention to use emergency contraceptive pills in case of need was reported by 74% of the women and remained stable over time, but logistic regression showed that information during the previous year contributed to willingness to use the method in the intervention group. CONCLUSIONS: Knowledge, attitudes and practices about emergency contraceptive pills increased in both groups. Emergency contraceptive pills is gradually becoming a more widely known, accepted and used contraceptive method in Sweden, a trend that may have limited the impact of the intervention.

Adolescent↗

In vitro fertilisation in Sweden: obstetric characteristics, maternal morbidity and mortality.

OBJECTIVE: To investigate obstetric characteristics, maternal morbidity and mortality among Swedish women giving birth after in vitro fertilisation (IVF) treatment. DESIGN: Register study. SETTING: Nationwide study in Sweden. SAMPLE: All women known to have had IVF in Sweden 1982-2001. METHODS: Using Swedish health registers, women who had given birth after IVF were identified from all Swedish IVF clinics and compared with all women who gave birth. Analysis was performed with the Mantel-Haenszel technique. MAIN OUTCOME MEASURES: Diagnoses during pregnancy, at delivery and at re-admission within 60 days after delivery and risk of cancer. RESULTS: IVF women had an increased risk of bleeding in early pregnancy [odds ratio (OR) = 4.59, 95% confidence interval (95% CI) 4.08-5.15] and of ovarian torsion during pregnancy (OR = 10.6, 5.69-10.7). They were also more likely to encounter pre-eclampsia (OR = 1.63, 1.53-1.74), placental abruption (2.17, 1.74-2.72), placenta praevia (3.65, 3.15-4.23), bleeding in association with vaginal delivery (1.40, 1.38-1.50) and premature rupture of membranes (PROM) (2.54, 2.34-2.76). Interventions including caesarean sections (1.38, 1.32-1.43) and induction of labour (1.37, 1.29-1.46) in singleton pregnancies was more frequent. The type of IVF method had little effect on these results, but there was a tendency for women who had received intra-cytoplasmatic sperm injection (ICSI) to have slightly fewer complications than women having standard IVF. There was a significant decrease in cancer risk after IVF (0.79, 0.69-0.91) but a suggested increase in the risk of ovarian cancer both before (2.70, 1.49-4.91) and after (2.08, 1.15-3.76) IVF. No change in mortality was observed. CONCLUSIONS: Women treated with IVF had an increased obstetric morbidity. This seems to contribute little to the well-known increased risk of preterm delivery.

Adult↗

Nursing students' attitudes towards abortion and family planning in Italy and Sweden.

In the last two decades family life and family planning have developed in a similar way in different European countries although legal and social background factors were very different in the past. Countries like Italy and Sweden are bipolar when compared. In this study nursing students' attitudes towards abortion and family planning in Italy and Sweden are described, to identify general characteristics of students that could be of interest to compare and to identify reasons for approval and/or disapproval of abortion. Some social characteristics of the students are similar, like fathers' profession/activity. Italian nursing students are more religious. Some factual knowledge is low in both samples. The nursing student's feelings, attitudes towards abortion are expressed differently in the countries. Many Italian students believe abortion is justified only on medical grounds, Swedish students indicate psychological effects as the most likely consequence both for woman and for man.

Abortion, Induced↗